glupteba | 89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 13:04

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Size 4.1MB
Sample240517-qa9cdaad48
SHA256 89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1
MD5 9d5fe265466ca046380943ee174943c6
SHA1 590ea483ca98c5cba23c7bd35a7e09350c09c1f7
SHA512 9d12bc52e5bfc267e13e36c877d76d2e5ad2b6291d5bfe7aa8038e9bf0ddf01a83700ba56f290e596781cb55e7d95631074df98101ddb8f57d2993b5f2e4838a
SSDEEP 98304:PhzlfCz+ccJ0CpUiRHjJlGcG1klIkRd3fLKEvx:5z9CiccJ0CpfGcGG1DfLP
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit upx

Malware Config

Signatures

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

Glupteba payload 19 IoCs

resource	yara_rule
behavioral1/memory/4972-2-0x0000000004DC0000-0x00000000056AB000-memory.dmp	family_glupteba
behavioral1/memory/4972-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/4972-28-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/4972-56-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/4972-58-0x0000000004DC0000-0x00000000056AB000-memory.dmp	family_glupteba
behavioral1/memory/4972-70-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/4652-69-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/4652-138-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-163-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-220-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-231-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-233-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-236-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-240-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-243-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-245-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-248-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-252-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/684-255-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4088	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
684	csrss.exe
1568	injector.exe
2800	windefender.exe
4648	windefender.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000800000002355a-224.dat	upx
behavioral1/memory/2800-225-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4648-228-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/2800-230-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4648-234-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/4648-239-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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

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

Drops file in System32 directory 7 IoCs

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 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

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

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
File created	C:\Windows\rss\csrss.exe	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.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.

pid	Process
4180	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4644	powershell.exe
2848	powershell.exe
1500	powershell.exe
1008	powershell.exe
1680	powershell.exe
1196	powershell.exe
3696	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

pid	Process
3880	schtasks.exe
540	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.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\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time"	windefender.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1680	powershell.exe
1680	powershell.exe
1680	powershell.exe
4972	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4972	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
1196	powershell.exe
1196	powershell.exe
1196	powershell.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
3696	powershell.exe
3696	powershell.exe
3696	powershell.exe
4644	powershell.exe
4644	powershell.exe
4644	powershell.exe
2848	powershell.exe
2848	powershell.exe
2848	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1008	powershell.exe
1008	powershell.exe
1008	powershell.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
684	csrss.exe
684	csrss.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
684	csrss.exe
684	csrss.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
684	csrss.exe
684	csrss.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe
1568	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	powershell.exe
Token: SeDebugPrivilege	4972	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Token: SeImpersonatePrivilege	4972	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
Token: SeDebugPrivilege	1196	powershell.exe
Token: SeDebugPrivilege	3696	powershell.exe
Token: SeDebugPrivilege	4644	powershell.exe
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	1500	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeSystemEnvironmentPrivilege	684	csrss.exe
Token: SeSecurityPrivilege	4180	sc.exe
Token: SeSecurityPrivilege	4180	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 1680	4972	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	102
PID 4972 wrote to memory of 1680	4972	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	102
PID 4972 wrote to memory of 1680	4972	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	102
PID 4652 wrote to memory of 1196	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	108
PID 4652 wrote to memory of 1196	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	108
PID 4652 wrote to memory of 1196	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	108
PID 4652 wrote to memory of 1804	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	110
PID 4652 wrote to memory of 1804	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	110
PID 1804 wrote to memory of 4088	1804	cmd.exe	112
PID 1804 wrote to memory of 4088	1804	cmd.exe	112
PID 4652 wrote to memory of 3696	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	113
PID 4652 wrote to memory of 3696	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	113
PID 4652 wrote to memory of 3696	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	113
PID 4652 wrote to memory of 4644	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	116
PID 4652 wrote to memory of 4644	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	116
PID 4652 wrote to memory of 4644	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	116
PID 4652 wrote to memory of 684	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	119
PID 4652 wrote to memory of 684	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	119
PID 4652 wrote to memory of 684	4652	89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe	119
PID 684 wrote to memory of 2848	684	csrss.exe	120
PID 684 wrote to memory of 2848	684	csrss.exe	120
PID 684 wrote to memory of 2848	684	csrss.exe	120
PID 684 wrote to memory of 1500	684	csrss.exe	126
PID 684 wrote to memory of 1500	684	csrss.exe	126
PID 684 wrote to memory of 1500	684	csrss.exe	126
PID 684 wrote to memory of 1008	684	csrss.exe	128
PID 684 wrote to memory of 1008	684	csrss.exe	128
PID 684 wrote to memory of 1008	684	csrss.exe	128
PID 684 wrote to memory of 1568	684	csrss.exe	130
PID 684 wrote to memory of 1568	684	csrss.exe	130
PID 2800 wrote to memory of 1716	2800	windefender.exe	136
PID 2800 wrote to memory of 1716	2800	windefender.exe	136
PID 2800 wrote to memory of 1716	2800	windefender.exe	136
PID 1716 wrote to memory of 4180	1716	cmd.exe	137
PID 1716 wrote to memory of 4180	1716	cmd.exe	137
PID 1716 wrote to memory of 4180	1716	cmd.exe	137

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\89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
"C:\Users\Admin\AppData\Local\Temp\89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1680
- C:\Users\Admin\AppData\Local\Temp\89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe
  "C:\Users\Admin\AppData\Local\Temp\89af5bbf64eb2506c1a20e883912d560ca51c10369e22629b9a89e60e1c4e7f1.exe"
  2⤵
  - 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:4652
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1196
- - 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"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1804
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      4⤵
      Modifies Windows Firewall
      PID:4088
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3696
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4644
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - 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:684
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2848
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:3880
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:216
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1500
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1008
  - - 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
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1568
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:540
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2800
    - - 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)
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1716
      - 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)
        6⤵
        Launches sc.exe
        Suspicious use of AdjustPrivilegeToken
        
        PID:4180

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4316,i,15721081447618313297,6839074028983272033,262144 --variations-seed-version --mojo-platform-channel-handle=4656 /prefetch:8
1⤵
PID:3984

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_lswgegdt.2id.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lswgegdt.2id.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

injector.exe

Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Size 281KB
SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
MD5 d98e33b66343e7c96158444127a117f6
SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
MD5 SHA1 SHA512 SSDEEP

Submit Download

powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
MD5 3d086a433708053f9bf9523e1d87a4e8
SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
MD5 SHA1 SHA512

Submit Download