glupteba | 501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b

Analysis

max time kernel
150s
max time network
143s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
29/04/2024, 23:47

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General

Target

501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Size

4.1MB
MD5

833a231890378235907a2f0bdfdcef0b
SHA1

0c2807ac2eb7c61f57251bb8a879fb2fd1e8ad9b
SHA256

501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b
SHA512

5d3cce6ff37993101c202923d282e629b04ce28bc6d025edfbfd5b85b4f37af8bfe6c15c970ba29abeee6187b6e95a63778e45ea0858b9fc9f817500bbb76059
SSDEEP

98304:ecO+IuFN6RfDNOk8ZbuyoB06TRm38VpB+tbu1LxdKr74:rOCE0TZbU+b8Vn+t8Vde4

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit

Malware Config

Signatures

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

Glupteba payload 16 IoCs

resource	yara_rule
behavioral2/memory/3864-2-0x0000000005090000-0x000000000597B000-memory.dmp	family_glupteba
behavioral2/memory/3864-3-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/3864-36-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/3864-52-0x0000000005090000-0x000000000597B000-memory.dmp	family_glupteba
behavioral2/memory/3864-50-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/3004-125-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-150-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-199-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-207-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-210-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-213-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-216-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-219-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-222-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-225-0x0000000000400000-0x0000000002ED3000-memory.dmp	family_glupteba
behavioral2/memory/2320-228-0x0000000000400000-0x0000000002ED3000-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
4456	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2320	csrss.exe
420	injector.exe

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-1-5-21-891789021-684472942-1795878712-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\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 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
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

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	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
File created	C:\Windows\rss\csrss.exe	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.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
2992	schtasks.exe
4608	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.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\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	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\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.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\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	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\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.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\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2200	powershell.exe
2200	powershell.exe
3864	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3864	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
1560	powershell.exe
1560	powershell.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
3704	powershell.exe
3704	powershell.exe
2732	powershell.exe
2732	powershell.exe
1380	powershell.exe
1380	powershell.exe
2284	powershell.exe
2284	powershell.exe
2168	powershell.exe
2168	powershell.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
2320	csrss.exe
2320	csrss.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
2320	csrss.exe
2320	csrss.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe
420	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeDebugPrivilege	3864	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Token: SeImpersonatePrivilege	3864	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
Token: SeDebugPrivilege	1560	powershell.exe
Token: SeDebugPrivilege	3704	powershell.exe
Token: SeDebugPrivilege	2732	powershell.exe
Token: SeDebugPrivilege	1380	powershell.exe
Token: SeDebugPrivilege	2284	powershell.exe
Token: SeDebugPrivilege	2168	powershell.exe
Token: SeSystemEnvironmentPrivilege	2320	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3864 wrote to memory of 2200	3864	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	82
PID 3864 wrote to memory of 2200	3864	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	82
PID 3864 wrote to memory of 2200	3864	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	82
PID 3004 wrote to memory of 1560	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	87
PID 3004 wrote to memory of 1560	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	87
PID 3004 wrote to memory of 1560	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	87
PID 3004 wrote to memory of 4728	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	89
PID 3004 wrote to memory of 4728	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	89
PID 4728 wrote to memory of 4456	4728	cmd.exe	91
PID 4728 wrote to memory of 4456	4728	cmd.exe	91
PID 3004 wrote to memory of 3704	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	92
PID 3004 wrote to memory of 3704	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	92
PID 3004 wrote to memory of 3704	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	92
PID 3004 wrote to memory of 2732	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	94
PID 3004 wrote to memory of 2732	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	94
PID 3004 wrote to memory of 2732	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	94
PID 3004 wrote to memory of 2320	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	96
PID 3004 wrote to memory of 2320	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	96
PID 3004 wrote to memory of 2320	3004	501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe	96
PID 2320 wrote to memory of 1380	2320	csrss.exe	97
PID 2320 wrote to memory of 1380	2320	csrss.exe	97
PID 2320 wrote to memory of 1380	2320	csrss.exe	97
PID 2320 wrote to memory of 2284	2320	csrss.exe	103
PID 2320 wrote to memory of 2284	2320	csrss.exe	103
PID 2320 wrote to memory of 2284	2320	csrss.exe	103
PID 2320 wrote to memory of 2168	2320	csrss.exe	105
PID 2320 wrote to memory of 2168	2320	csrss.exe	105
PID 2320 wrote to memory of 2168	2320	csrss.exe	105
PID 2320 wrote to memory of 420	2320	csrss.exe	107
PID 2320 wrote to memory of 420	2320	csrss.exe	107

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\501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
"C:\Users\Admin\AppData\Local\Temp\501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3864
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2200
- C:\Users\Admin\AppData\Local\Temp\501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.exe
  "C:\Users\Admin\AppData\Local\Temp\501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b.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:3004
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1560
- - 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:4728
  - - 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:4456
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3704
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2732
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2320
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1380
  - - 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:2992
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2304
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2284
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2168
  - - 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:420
  - - 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:4608

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_jacrapsi.ue0.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
73974bbc9c642da44c609071d99a3e2e

SHA1
3e99f4f573c26167bd3185f9719a1e37ca8e1222

SHA256
8e306a59637c1f09c8422d52457b58ba529adb0b8634606239dece221bc90933

SHA512
7d6d361b108fcdb5df18a42c3512f209a7c213217dbcdee1ed2739c7b06587b06ce3fbd69f9178b3854e8f0150e0ce7a1c3830760db960fae56eee12049e3aaa

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

Filesize
19KB

MD5
0dcc17aa8d4a08ff7ce8ab8d41908e77

SHA1
f10ad72b2dc2a5f13a4a1b3c01fbe6485888cea1

SHA256
6d86d20b92af33984b058b0b38712bd047a0c6ab3197c356681ccf785e8a46a0

SHA512
0e060e95bc94a95f59b94acd15959d9db095eeab86133e424985791910ae1ba49f18deb181a841f50ef2892c3e8f567c6a881e9c137f2b9127f1c107fd7238d0

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

Filesize
19KB

MD5
66d949541dcbe2b91967911a1d00fd1f

SHA1
617b344cca167a05ed9770e8fbb0683a18fea7c2

SHA256
a89709be2769a5a6b4700752e8eed9c2c0e4cef778cb3f3511e724a3fd478733

SHA512
b80c78d6087da7f2412df9440242ed6225a8d7edfcce3327d503490d41d13394f0d337c63c09cc32e56806b380d58ceb3aed787a8caa257cb424f84219cc98fa

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

Filesize
19KB

MD5
21079e496a4de5a75167d005c6d3cbaf

SHA1
33c481061d5cda414eda6cbbdb58a54542844caa

SHA256
f8b2b495bdef523377822e9665040ca9ebf6e22b2b54303361529c45a5da7f27

SHA512
a94b760a9992c7ded62e07b5a92a2d24050c12afd0a3820cb9ef440f12780a85649b02100939ebb4376750b9f6b740218a5efa2bf7e03253544a0549f3adaa81

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

Filesize
19KB

MD5
c4be380469c913b1f6edca243c80c9a0

SHA1
60fa4dcca3524be48ad723497b9f66c6ec5b43df

SHA256
b0397470b26f11c4086ab6d7a968b2867440b59c94d60ee0a65ec70ec6eb6c8a

SHA512
b4b2d3e9d7910dffbc34cb73e0ea36cd266c950936e0e939c2313b771a295d05d669819de47a5a380e7830f0cb0ce80d9e4b0f09a40e275d4a2e85984ad7d33b

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.1MB

MD5
833a231890378235907a2f0bdfdcef0b

SHA1
0c2807ac2eb7c61f57251bb8a879fb2fd1e8ad9b

SHA256
501aaa60e72de5c75934142fc840e45b1e8c4d6df7229b40f5a322158fe6e32b

SHA512
5d3cce6ff37993101c202923d282e629b04ce28bc6d025edfbfd5b85b4f37af8bfe6c15c970ba29abeee6187b6e95a63778e45ea0858b9fc9f817500bbb76059

Download Submit
memory/1380-137-0x0000000070180000-0x00000000701CC000-memory.dmp

Filesize
304KB

Download
memory/1380-138-0x0000000070320000-0x0000000070677000-memory.dmp

Filesize
3.3MB

Download
memory/1560-61-0x0000000070180000-0x00000000701CC000-memory.dmp

Filesize
304KB

Download
memory/1560-73-0x0000000007C40000-0x0000000007C55000-memory.dmp

Filesize
84KB

Download
memory/1560-72-0x0000000007BF0000-0x0000000007C01000-memory.dmp

Filesize
68KB

Download
memory/1560-71-0x00000000078A0000-0x0000000007944000-memory.dmp

Filesize
656KB

Download
memory/1560-62-0x0000000070390000-0x00000000706E7000-memory.dmp

Filesize
3.3MB

Download
memory/2168-186-0x0000000005B90000-0x0000000005EE7000-memory.dmp

Filesize
3.3MB

Download
memory/2168-188-0x00000000700A0000-0x00000000700EC000-memory.dmp

Filesize
304KB

Download
memory/2168-189-0x0000000070220000-0x0000000070577000-memory.dmp

Filesize
3.3MB

Download
memory/2200-35-0x0000000007B10000-0x0000000007BB4000-memory.dmp

Filesize
656KB

Download
memory/2200-10-0x0000000006020000-0x0000000006086000-memory.dmp

Filesize
408KB

Download
memory/2200-37-0x0000000008280000-0x00000000088FA000-memory.dmp

Filesize
6.5MB

Download
memory/2200-39-0x0000000007C70000-0x0000000007C7A000-memory.dmp

Filesize
40KB

Download
memory/2200-7-0x00000000058B0000-0x0000000005EDA000-memory.dmp

Filesize
6.2MB

Download
memory/2200-40-0x0000000007D80000-0x0000000007E16000-memory.dmp

Filesize
600KB

Download
memory/2200-41-0x0000000007C90000-0x0000000007CA1000-memory.dmp

Filesize
68KB

Download
memory/2200-42-0x0000000007CE0000-0x0000000007CEE000-memory.dmp

Filesize
56KB

Download
memory/2200-43-0x0000000007CF0000-0x0000000007D05000-memory.dmp

Filesize
84KB

Download
memory/2200-44-0x0000000007D40000-0x0000000007D5A000-memory.dmp

Filesize
104KB

Download
memory/2200-45-0x0000000007D30000-0x0000000007D38000-memory.dmp

Filesize
32KB

Download
memory/2200-48-0x0000000073F10000-0x00000000746C1000-memory.dmp

Filesize
7.7MB

Download
memory/2200-8-0x0000000005F10000-0x0000000005F32000-memory.dmp

Filesize
136KB

Download
memory/2200-9-0x0000000005FB0000-0x0000000006016000-memory.dmp

Filesize
408KB

Download
memory/2200-6-0x00000000031B0000-0x00000000031C0000-memory.dmp

Filesize
64KB

Download
memory/2200-5-0x0000000073F10000-0x00000000746C1000-memory.dmp

Filesize
7.7MB

Download
memory/2200-34-0x0000000007AF0000-0x0000000007B0E000-memory.dmp

Filesize
120KB

Download
memory/2200-25-0x0000000070390000-0x00000000706E7000-memory.dmp

Filesize
3.3MB

Download
memory/2200-23-0x0000000007AB0000-0x0000000007AE4000-memory.dmp

Filesize
208KB

Download
memory/2200-24-0x0000000070180000-0x00000000701CC000-memory.dmp

Filesize
304KB

Download
memory/2200-22-0x0000000006C30000-0x0000000006C76000-memory.dmp

Filesize
280KB

Download
memory/2200-19-0x0000000006150000-0x00000000064A7000-memory.dmp

Filesize
3.3MB

Download
memory/2200-21-0x0000000006720000-0x000000000676C000-memory.dmp

Filesize
304KB

Download
memory/2200-38-0x0000000007C30000-0x0000000007C4A000-memory.dmp

Filesize
104KB

Download
memory/2200-4-0x0000000003200000-0x0000000003236000-memory.dmp

Filesize
216KB

Download
memory/2200-20-0x0000000006670000-0x000000000668E000-memory.dmp

Filesize
120KB

Download
memory/2284-156-0x0000000005BB0000-0x0000000005F07000-memory.dmp

Filesize
3.3MB

Download
memory/2284-174-0x0000000005F50000-0x0000000005F65000-memory.dmp

Filesize
84KB

Download
memory/2284-173-0x0000000007740000-0x0000000007751000-memory.dmp

Filesize
68KB

Download
memory/2284-172-0x00000000073B0000-0x0000000007454000-memory.dmp

Filesize
656KB

Download
memory/2284-162-0x00000000700A0000-0x00000000700EC000-memory.dmp

Filesize
304KB

Download
memory/2284-163-0x00000000702F0000-0x0000000070647000-memory.dmp

Filesize
3.3MB

Download
memory/2284-161-0x0000000006180000-0x00000000061CC000-memory.dmp

Filesize
304KB

Download
memory/2320-216-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-150-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-225-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-228-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-222-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-219-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-199-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-213-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-210-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2320-207-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/2732-110-0x00000000703D0000-0x0000000070727000-memory.dmp

Filesize
3.3MB

Download
memory/2732-98-0x0000000006280000-0x00000000065D7000-memory.dmp

Filesize
3.3MB

Download
memory/2732-109-0x0000000070180000-0x00000000701CC000-memory.dmp

Filesize
304KB

Download
memory/3004-125-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/3704-87-0x0000000070180000-0x00000000701CC000-memory.dmp

Filesize
304KB

Download
memory/3704-88-0x0000000070320000-0x0000000070677000-memory.dmp

Filesize
3.3MB

Download
memory/3704-85-0x0000000006040000-0x0000000006397000-memory.dmp

Filesize
3.3MB

Download
memory/3864-2-0x0000000005090000-0x000000000597B000-memory.dmp

Filesize
8.9MB

Download
memory/3864-3-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/3864-1-0x0000000004C90000-0x000000000508B000-memory.dmp

Filesize
4.0MB

Download
memory/3864-50-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download
memory/3864-52-0x0000000005090000-0x000000000597B000-memory.dmp

Filesize
8.9MB

Download
memory/3864-51-0x0000000004C90000-0x000000000508B000-memory.dmp

Filesize
4.0MB

Download
memory/3864-36-0x0000000000400000-0x0000000002ED3000-memory.dmp

Filesize
42.8MB

Download