glupteba | c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
21-04-2024 13:03

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General

Target

c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Size

4.1MB
MD5

f614646d520e88e1e7cf44e13de44ba4
SHA1

dfdbf695c8822a8c5015513a4b3d4d8e6a8ecd74
SHA256

c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0
SHA512

e1a41f2d21c65cf3e334252551ba8389ac751e1d2758e385679b7039732f65bea315fe7db351167c939f63aface1ead35dc18ca77b2b2ade23b88f7570f4b29e
SSDEEP

98304:4upp3WUkLaIVxVQ5Lfi8+DAGSBgUwbhlmIRT0sLJ5H:V24wrgi8oddlbF

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 37 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3444-2-0x0000000004250000-0x0000000004B3C000-memory.dmp	family_glupteba
behavioral2/memory/3472-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3472-5-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3472-7-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3472-8-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3472-9-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3472-10-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3472-49-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/5048-56-0x0000000003A60000-0x0000000003E5A000-memory.dmp	family_glupteba
behavioral2/memory/2200-60-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2200-61-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2200-62-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2200-63-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2200-64-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2200-139-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/2200-156-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-170-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-171-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-172-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-173-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-199-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-200-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-262-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-263-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-264-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-272-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-274-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-276-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-278-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-280-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-281-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-284-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-286-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-288-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-289-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-292-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3144-294-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2044 netsh.exe
Executes dropped EXE 5 IoCs

Processes:

csrss.execsrss.exeinjector.exewindefender.exewindefender.exe

pid process

3416 csrss.exe
3144 csrss.exe
3904 injector.exe
1204 windefender.exe
4340 windefender.exe

pid	process
2044	netsh.exe

pid	process
3416	csrss.exe
3144	csrss.exe
3904	injector.exe
1204	windefender.exe
4340	windefender.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Windows\windefender.exe	upx
behavioral2/memory/1204-271-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4340-273-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4340-277-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
rootkit evasion

Processes:

csrss.exe

description ioc process

File opened for modification \??\WinMonFS csrss.exe

description	ioc	process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.execsrss.exe

description	pid	process	target process
PID 3444 set thread context of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 set thread context of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3416 set thread context of 3144	3416	csrss.exe	csrss.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery
T1082

Processes:

c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe

Drops file in Windows directory 4 IoCs

Processes:

c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.execsrss.exe

description	ioc	process
File opened for modification	C:\Windows\rss	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
File created	C:\Windows\rss\csrss.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exe

pid process

3328 sc.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2228 1928 WerFault.exe powershell.exe
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1408 schtasks.exe
1128 schtasks.exe

pid	process
3328	sc.exe

pid	pid_target	process	target process
2228	1928	WerFault.exe	powershell.exe

pid	process
1408	schtasks.exe
1128	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exewindefender.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exepowershell.exepowershell.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-572 = "China Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-152 = "Central America Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exepowershell.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exe

pid	process
1928	powershell.exe
1928	powershell.exe
3472	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
3472	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2984	powershell.exe
2984	powershell.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
440	powershell.exe
440	powershell.exe
4648	powershell.exe
4648	powershell.exe
556	powershell.exe
556	powershell.exe
4792	powershell.exe
4792	powershell.exe
4036	powershell.exe
4036	powershell.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3144	csrss.exe
3144	csrss.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3144	csrss.exe
3144	csrss.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3144	csrss.exe
3144	csrss.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe
3904	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

powershell.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exe

description	pid	process
Token: SeDebugPrivilege	1928	powershell.exe
Token: SeDebugPrivilege	3472	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Token: SeImpersonatePrivilege	3472	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
Token: SeDebugPrivilege	2984	powershell.exe
Token: SeDebugPrivilege	440	powershell.exe
Token: SeDebugPrivilege	4648	powershell.exe
Token: SeDebugPrivilege	556	powershell.exe
Token: SeDebugPrivilege	4792	powershell.exe
Token: SeDebugPrivilege	4036	powershell.exe
Token: SeSystemEnvironmentPrivilege	3144	csrss.exe
Token: SeSecurityPrivilege	3328	sc.exe
Token: SeSecurityPrivilege	3328	sc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exec5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.execmd.execsrss.execsrss.exewindefender.exe

description	pid	process	target process
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3444 wrote to memory of 3472	3444	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 3472 wrote to memory of 1928	3472	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 3472 wrote to memory of 1928	3472	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 3472 wrote to memory of 1928	3472	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 5048 wrote to memory of 2200	5048	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
PID 2200 wrote to memory of 2984	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 2984	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 2984	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 4952	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	cmd.exe
PID 2200 wrote to memory of 4952	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	cmd.exe
PID 4952 wrote to memory of 2044	4952	cmd.exe	netsh.exe
PID 4952 wrote to memory of 2044	4952	cmd.exe	netsh.exe
PID 2200 wrote to memory of 440	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 440	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 440	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 4648	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 4648	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 4648	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	powershell.exe
PID 2200 wrote to memory of 3416	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	csrss.exe
PID 2200 wrote to memory of 3416	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	csrss.exe
PID 2200 wrote to memory of 3416	2200	c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3416 wrote to memory of 3144	3416	csrss.exe	csrss.exe
PID 3144 wrote to memory of 556	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 556	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 556	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 4792	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 4792	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 4792	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 4036	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 4036	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 4036	3144	csrss.exe	powershell.exe
PID 3144 wrote to memory of 3904	3144	csrss.exe	injector.exe
PID 3144 wrote to memory of 3904	3144	csrss.exe	injector.exe
PID 1204 wrote to memory of 1640	1204	windefender.exe	cmd.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
"C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3444

C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
"C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3472

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1928 -s 2568
4⤵
- Program crash
PID:2228

C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
"C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5048

C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe
"C:\Users\Admin\AppData\Local\Temp\c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0.exe"
4⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2200

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
5⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2984

C:\Windows\system32\cmd.exe
C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
5⤵
- Suspicious use of WriteProcessMemory
PID:4952

C:\Windows\system32\netsh.exe
netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
6⤵
- Modifies Windows Firewall
PID:2044

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
5⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:440

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
5⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4648

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3416

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3144

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
7⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:556

C:\Windows\SYSTEM32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
7⤵
- Creates scheduled task(s)
PID:1408

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
7⤵
PID:1696

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
7⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4792

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nologo -noprofile
7⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4036

C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
7⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3904

C:\Windows\SYSTEM32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
7⤵
- Creates scheduled task(s)
PID:1128

C:\Windows\windefender.exe
"C:\Windows\windefender.exe"
7⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1204

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
8⤵
PID:1640

C:\Windows\SysWOW64\sc.exe
sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
9⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:3328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1928 -ip 1928
1⤵
PID:1988

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4340

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yef4av1p.asy.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
0ef80f691da505e05b0cf33f81851db6

SHA1
b6ed73f8247309a2534ff928a8da7e94fc1a2ecd

SHA256
94bca1eb6b8a28f8ba8b8f1b0d88acec7296b6fe052990db7345de5adbeffa71

SHA512
2113cb249d172a477cb6fc4fcfdbd192c4ba040255e6bf4cdf9fdfb27385f1e8a2b7b5dc610d6da75ee407ca06bd259012bf4f7b9d1c5bef96414e6746d65fa0

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
fb96e1c21146b3fab6acb85bcb69ff50

SHA1
677e6037e98dc384a432865d6b4079f8e8175b5a

SHA256
8e11bfcea26054ba877811794ddc85284f28f0064a6690d78c758e8a3142e458

SHA512
78bcc82fd6207304d97cae137dbb99ea4ff81d214dc126bbd29dd46666065f79d16472c66cef3e21d77f25af210c149deb24a9e18cf1b3365e44d3792ffd327a

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
694adcef2b99fca133d4ca3a6901a183

SHA1
b77027884e41326bf1a6391d9dc51c5694a0021b

SHA256
5aa3c5aebc495bb0af1508586d0dcf6dcc77353356e9ff4b1d576c89681b022e

SHA512
5a5262c7fe503921f5c75748d3e8d69d0a0231e60f90c5930375603cb9801164682c228d79229c5d153bd0a2d083c8f60709aba7965ea3e9cf676517bd0b2dbc

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
81fcabf645bfeeca4c2b7a7145019ed7

SHA1
00424cf878b60cdb2cf56998eccb18997477f9b1

SHA256
c6877cf11577036e2c4fede64e6b01434ccb9be13d58b63777366cfbfd9c89a6

SHA512
72987db01bb72e617d08d3c4e55ab61bf4a087223343fbcc87a9c701e1582dd89e5221c931b871972e3e13d3979276045b1938ae9125f689e7ac26e74f91a9ee

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize
19KB

MD5
2553d2198198741b2853807dbdd008ef

SHA1
7a6faec72c42d7b8093e53d215aff18a71ece192

SHA256
a8eede0d1b9126e783437ea0ce4b66b6fbbc02bedd52e9ede6a34907efd24975

SHA512
5bc2f9496dec0754ae9eb446a7841669d3b2ff44314f1eb278294cd53cfdf65c041c82933077479f3203e580b3038a6b30502d7961206079d02ea0e58c02b22d

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
f614646d520e88e1e7cf44e13de44ba4

SHA1
dfdbf695c8822a8c5015513a4b3d4d8e6a8ecd74

SHA256
c5540bf1403cb74a693897e5c20b2983fb6e53fcca57c7c92c25c94bd0ba69b0

SHA512
e1a41f2d21c65cf3e334252551ba8389ac751e1d2758e385679b7039732f65bea315fe7db351167c939f63aface1ead35dc18ca77b2b2ade23b88f7570f4b29e

Download Submit
C:\Windows\windefender.exe
Filesize
2.0MB

MD5
8e67f58837092385dcf01e8a2b4f5783

SHA1
012c49cfd8c5d06795a6f67ea2baf2a082cf8625

SHA256
166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa

SHA512
40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec

Download Submit
memory/440-113-0x0000000070430000-0x000000007047C000-memory.dmp

Filesize
304KB

Download
memory/440-124-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/440-114-0x0000000070680000-0x00000000709D7000-memory.dmp

Filesize
3.3MB

Download
memory/440-103-0x0000000002C80000-0x0000000002C90000-memory.dmp

Filesize
64KB

Download
memory/440-102-0x0000000002C80000-0x0000000002C90000-memory.dmp

Filesize
64KB

Download
memory/440-101-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/556-175-0x00000000024E0000-0x00000000024F0000-memory.dmp

Filesize
64KB

Download
memory/556-174-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/1204-271-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/1928-45-0x0000000008060000-0x00000000086DA000-memory.dmp

Filesize
6.5MB

Download
memory/1928-13-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/1928-43-0x00000000078D0000-0x00000000078EE000-memory.dmp

Filesize
120KB

Download
memory/1928-44-0x00000000078F0000-0x0000000007994000-memory.dmp

Filesize
656KB

Download
memory/1928-34-0x0000000070540000-0x0000000070897000-memory.dmp

Filesize
3.3MB

Download
memory/1928-33-0x00000000703C0000-0x000000007040C000-memory.dmp

Filesize
304KB

Download
memory/1928-32-0x0000000007870000-0x00000000078A4000-memory.dmp

Filesize
208KB

Download
memory/1928-46-0x0000000007A20000-0x0000000007A3A000-memory.dmp

Filesize
104KB

Download
memory/1928-30-0x0000000007560000-0x00000000075A6000-memory.dmp

Filesize
280KB

Download
memory/1928-47-0x0000000007A60000-0x0000000007A6A000-memory.dmp

Filesize
40KB

Download
memory/1928-31-0x000000007FC50000-0x000000007FC60000-memory.dmp

Filesize
64KB

Download
memory/1928-48-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/1928-11-0x0000000002F40000-0x0000000002F76000-memory.dmp

Filesize
216KB

Download
memory/1928-12-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/1928-28-0x00000000063D0000-0x00000000063EE000-memory.dmp

Filesize
120KB

Download
memory/1928-27-0x0000000005F30000-0x0000000006287000-memory.dmp

Filesize
3.3MB

Download
memory/1928-20-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/1928-17-0x00000000055C0000-0x0000000005626000-memory.dmp

Filesize
408KB

Download
memory/1928-16-0x0000000005520000-0x0000000005542000-memory.dmp

Filesize
136KB

Download
memory/1928-15-0x0000000005890000-0x0000000005EBA000-memory.dmp

Filesize
6.2MB

Download
memory/1928-29-0x0000000006410000-0x000000000645C000-memory.dmp

Filesize
304KB

Download
memory/1928-14-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/2200-139-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2200-156-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2200-64-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2200-63-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2200-62-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2200-61-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2200-60-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2984-96-0x0000000007C30000-0x0000000007C38000-memory.dmp

Filesize
32KB

Download
memory/2984-65-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/2984-93-0x0000000007BC0000-0x0000000007BCE000-memory.dmp

Filesize
56KB

Download
memory/2984-94-0x0000000007BD0000-0x0000000007BE5000-memory.dmp

Filesize
84KB

Download
memory/2984-95-0x0000000007C10000-0x0000000007C2A000-memory.dmp

Filesize
104KB

Download
memory/2984-67-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2984-99-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/2984-91-0x0000000007C50000-0x0000000007CE6000-memory.dmp

Filesize
600KB

Download
memory/2984-88-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2984-90-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2984-89-0x00000000078F0000-0x0000000007994000-memory.dmp

Filesize
656KB

Download
memory/2984-78-0x0000000070430000-0x000000007047C000-memory.dmp

Filesize
304KB

Download
memory/2984-79-0x0000000070680000-0x00000000709D7000-memory.dmp

Filesize
3.3MB

Download
memory/2984-77-0x0000000006B80000-0x0000000006BCC000-memory.dmp

Filesize
304KB

Download
memory/2984-68-0x00000000060F0000-0x0000000006447000-memory.dmp

Filesize
3.3MB

Download
memory/2984-92-0x0000000007B80000-0x0000000007B91000-memory.dmp

Filesize
68KB

Download
memory/2984-66-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/3144-281-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-294-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-286-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-288-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-289-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-280-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-278-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-276-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-274-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-262-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-292-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-263-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-170-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-171-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-172-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-173-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-284-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-272-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-264-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-199-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3144-200-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3416-165-0x0000000004000000-0x0000000004400000-memory.dmp

Filesize
4.0MB

Download
memory/3444-1-0x0000000003E50000-0x0000000004250000-memory.dmp

Filesize
4.0MB

Download
memory/3444-2-0x0000000004250000-0x0000000004B3C000-memory.dmp

Filesize
8.9MB

Download
memory/3472-8-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3472-5-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3472-7-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3472-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3472-9-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3472-10-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3472-49-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/4340-277-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/4340-273-0x0000000000400000-0x00000000008DF000-memory.dmp

Filesize
4.9MB

Download
memory/4648-150-0x00000000050D0000-0x00000000050E0000-memory.dmp

Filesize
64KB

Download
memory/4648-152-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/4648-138-0x0000000070430000-0x000000007047C000-memory.dmp

Filesize
304KB

Download
memory/4648-140-0x000000007F640000-0x000000007F650000-memory.dmp

Filesize
64KB

Download
memory/4648-141-0x0000000070640000-0x0000000070997000-memory.dmp

Filesize
3.3MB

Download
memory/4648-133-0x0000000006000000-0x0000000006357000-memory.dmp

Filesize
3.3MB

Download
memory/4648-125-0x0000000074150000-0x0000000074901000-memory.dmp

Filesize
7.7MB

Download
memory/4648-126-0x00000000050D0000-0x00000000050E0000-memory.dmp

Filesize
64KB

Download
memory/4648-127-0x00000000050D0000-0x00000000050E0000-memory.dmp

Filesize
64KB

Download
memory/5048-56-0x0000000003A60000-0x0000000003E5A000-memory.dmp

Filesize
4.0MB

Download