glupteba | eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958

Analysis

max time kernel
58s
max time network
125s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
17-05-2024 09:49

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General

Target

eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Size

4.1MB
MD5

d2f354fc3e499c505ac0ce1df085e7eb
SHA1

007997d9e795d538a55f758501290c71179d382b
SHA256

eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958
SHA512

140c2c4dbf004ca893088af820d4fd6d440c78b069d32d7d9e3fd13aa40d75d5ec9709407f7e7e9a1f7f031c5b30a825432cc15f9193d428878ff348ef266a2e
SSDEEP

98304:UhY2qRRjR1paGoDMO/b2fpl9vUYBzPUd5cvaqxgKnFtiaJ:qYlRLXY4O+pXvrLaqWuc4

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit

Malware Config

Signatures

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

Glupteba payload 10 IoCs

resource	yara_rule
behavioral2/memory/3496-2-0x0000000004E10000-0x00000000056FB000-memory.dmp	family_glupteba
behavioral2/memory/3496-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3496-4-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3496-55-0x0000000004E10000-0x00000000056FB000-memory.dmp	family_glupteba
behavioral2/memory/3496-54-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4716-56-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3496-81-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4716-128-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4920-142-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/4920-206-0x0000000000400000-0x0000000002B0D000-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
4156	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
4920	csrss.exe
1552	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-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.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 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
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

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	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
File created	C:\Windows\rss\csrss.exe	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4332	powershell.exe
2264	powershell.exe
3724	powershell.exe
400	powershell.exe
2952	powershell.exe
3924	powershell.exe
4984	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
4120	schtasks.exe
4900	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\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	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,-81 = "Atlantic Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	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,-2181 = "Astrakhan Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.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\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.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\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
3924	powershell.exe
3924	powershell.exe
3496	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
3496	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4984	powershell.exe
4984	powershell.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
4332	powershell.exe
4332	powershell.exe
2264	powershell.exe
2264	powershell.exe
3724	powershell.exe
3724	powershell.exe
400	powershell.exe
400	powershell.exe
2952	powershell.exe
2952	powershell.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
4920	csrss.exe
4920	csrss.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
4920	csrss.exe
4920	csrss.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe
1552	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	powershell.exe
Token: SeDebugPrivilege	3496	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Token: SeImpersonatePrivilege	3496	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
Token: SeDebugPrivilege	4984	powershell.exe
Token: SeDebugPrivilege	4332	powershell.exe
Token: SeDebugPrivilege	2264	powershell.exe
Token: SeDebugPrivilege	3724	powershell.exe
Token: SeDebugPrivilege	400	powershell.exe
Token: SeDebugPrivilege	2952	powershell.exe
Token: SeSystemEnvironmentPrivilege	4920	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 3924	3496	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	82
PID 3496 wrote to memory of 3924	3496	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	82
PID 3496 wrote to memory of 3924	3496	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	82
PID 4716 wrote to memory of 4984	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	87
PID 4716 wrote to memory of 4984	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	87
PID 4716 wrote to memory of 4984	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	87
PID 4716 wrote to memory of 2112	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	89
PID 4716 wrote to memory of 2112	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	89
PID 2112 wrote to memory of 4156	2112	cmd.exe	91
PID 2112 wrote to memory of 4156	2112	cmd.exe	91
PID 4716 wrote to memory of 4332	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	92
PID 4716 wrote to memory of 4332	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	92
PID 4716 wrote to memory of 4332	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	92
PID 4716 wrote to memory of 2264	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	94
PID 4716 wrote to memory of 2264	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	94
PID 4716 wrote to memory of 2264	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	94
PID 4716 wrote to memory of 4920	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	96
PID 4716 wrote to memory of 4920	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	96
PID 4716 wrote to memory of 4920	4716	eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe	96
PID 4920 wrote to memory of 3724	4920	csrss.exe	97
PID 4920 wrote to memory of 3724	4920	csrss.exe	97
PID 4920 wrote to memory of 3724	4920	csrss.exe	97
PID 4920 wrote to memory of 400	4920	csrss.exe	102
PID 4920 wrote to memory of 400	4920	csrss.exe	102
PID 4920 wrote to memory of 400	4920	csrss.exe	102
PID 4920 wrote to memory of 2952	4920	csrss.exe	105
PID 4920 wrote to memory of 2952	4920	csrss.exe	105
PID 4920 wrote to memory of 2952	4920	csrss.exe	105
PID 4920 wrote to memory of 1552	4920	csrss.exe	107
PID 4920 wrote to memory of 1552	4920	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\eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
"C:\Users\Admin\AppData\Local\Temp\eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3496
- 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:3924
- C:\Users\Admin\AppData\Local\Temp\eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.exe
  "C:\Users\Admin\AppData\Local\Temp\eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958.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:4716
- - 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:4984
- - 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:2112
  - - 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:4156
- - 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:4332
- - 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:2264
- - 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:4920
  - - 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:3724
  - - 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:4900
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4040
  - - 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:400
  - - 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:2952
  - - 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:1552
  - - 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:4120

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gjgmf2io.awh.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
ac4917a885cf6050b1a483e4bc4d2ea5

SHA1
b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

SHA256
e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

SHA512
092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

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

Filesize
19KB

MD5
88efcc74439b6565f8ce96622772d5a2

SHA1
bf02e0fec37420d5360ca80a4fa57c534004fefe

SHA256
3ba5ef88c7ac041d641de01d0c6fa5df2b0751ad535658211c15a1400d4d2d04

SHA512
06696933932bf741c3350589f34ea43493528ea0eb3ecdb550e12a328873ebe3779e89c351b501dc784d5449e4516d8cd7b58c8914314c0f9cd5c4eb88229869

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

Filesize
19KB

MD5
52ecaac89725a4901e9def4dc9a0294a

SHA1
aedbabd9422060cc24490814b588ac7dea52de12

SHA256
151e758cc08c42a61638b1cbb3dabe209ee6ebca3d68631a686b111d58b0646e

SHA512
3963967daeccb5300818d30fd8fdd45cf170dd6393741eb327cf55a2566863d3c61925ddd2c97f6afd06086b889863ea42e7c26a833d050d53f04e5a0c02b158

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

Filesize
19KB

MD5
ac5b54cef2e48ad981435313ce88edb8

SHA1
19c5319eda99aaf6fbfd5f310435064184a5320e

SHA256
dd3e82507d58487c3d79fa30523fb6df500768a93d73b519a9da61b702f50da9

SHA512
38aadfff35618f87f96e047f071dec8febc685fdd1de4e116f206172549d91b72379f55d5dd5de94a2d0cb27f5b614f0686d3dd6c6c9a5731c69e49930ccbcc1

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

Filesize
19KB

MD5
5609c0a4fe0ba6706e41e0f5e3630235

SHA1
45044c0bbeca431a77bd183201b9c5ed653e4182

SHA256
015e981409211b12e0c4648c62350b89a595cde4bbb0ed0b3b0debe15fd83c71

SHA512
ea0d21f33818585302c1497061b68266d9d3f42dac1fe32c3d9d7c454c071c47b4b937ae2e74eea5577f5838c77358179968bfb06a61110f01cde9bf0a99e80f

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

Filesize
19KB

MD5
2b1eb441c2df47827661e95dc9e2bd5f

SHA1
f0f13188b258ffe8413bb216f94416e9592d597f

SHA256
b2ef7b048e21c9d56fe1a8cad1c70723a59478edc00227c62acda2b5932f2b7c

SHA512
d8a65effedfe5399c2b6d732ceb6816137c5d71be8438c90ea9b6e2da487e9c224f1fa0585482ffea639ae05c1a403f962822f37aeffdfdddf5404353f45bff1

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

Filesize
4.1MB

MD5
d2f354fc3e499c505ac0ce1df085e7eb

SHA1
007997d9e795d538a55f758501290c71179d382b

SHA256
eed9f937216227541ed707afd84d0c775fa0cd67a151b829c5c715c7dd445958

SHA512
140c2c4dbf004ca893088af820d4fd6d440c78b069d32d7d9e3fd13aa40d75d5ec9709407f7e7e9a1f7f031c5b30a825432cc15f9193d428878ff348ef266a2e

Download Submit
memory/400-162-0x00000000059A0000-0x0000000005CF7000-memory.dmp

Filesize
3.3MB

Download
memory/400-177-0x00000000057F0000-0x0000000005805000-memory.dmp

Filesize
84KB

Download
memory/400-176-0x0000000007370000-0x0000000007381000-memory.dmp

Filesize
68KB

Download
memory/400-175-0x0000000007040000-0x00000000070E4000-memory.dmp

Filesize
656KB

Download
memory/400-166-0x0000000070320000-0x0000000070677000-memory.dmp

Filesize
3.3MB

Download
memory/400-165-0x00000000701A0000-0x00000000701EC000-memory.dmp

Filesize
304KB

Download
memory/400-164-0x0000000005E50000-0x0000000005E9C000-memory.dmp

Filesize
304KB

Download
memory/2264-114-0x0000000070BC0000-0x0000000070F17000-memory.dmp

Filesize
3.3MB

Download
memory/2264-113-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/2264-111-0x0000000005F10000-0x0000000006267000-memory.dmp

Filesize
3.3MB

Download
memory/2952-190-0x0000000070340000-0x0000000070697000-memory.dmp

Filesize
3.3MB

Download
memory/2952-189-0x00000000701A0000-0x00000000701EC000-memory.dmp

Filesize
304KB

Download
memory/2952-187-0x00000000063B0000-0x0000000006707000-memory.dmp

Filesize
3.3MB

Download
memory/3496-53-0x0000000004A10000-0x0000000004E0B000-memory.dmp

Filesize
4.0MB

Download
memory/3496-1-0x0000000004A10000-0x0000000004E0B000-memory.dmp

Filesize
4.0MB

Download
memory/3496-4-0x0000000000400000-0x0000000002B0D000-memory.dmp

Filesize
39.1MB

Download
memory/3496-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3496-2-0x0000000004E10000-0x00000000056FB000-memory.dmp

Filesize
8.9MB

Download
memory/3496-81-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/3496-54-0x0000000000400000-0x0000000002B0D000-memory.dmp

Filesize
39.1MB

Download
memory/3496-55-0x0000000004E10000-0x00000000056FB000-memory.dmp

Filesize
8.9MB

Download
memory/3724-139-0x0000000005980000-0x0000000005CD7000-memory.dmp

Filesize
3.3MB

Download
memory/3724-143-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/3724-144-0x0000000070400000-0x0000000070757000-memory.dmp

Filesize
3.3MB

Download
memory/3924-24-0x0000000006890000-0x00000000068D6000-memory.dmp

Filesize
280KB

Download
memory/3924-18-0x0000000005E00000-0x0000000006157000-memory.dmp

Filesize
3.3MB

Download
memory/3924-45-0x0000000007940000-0x000000000794E000-memory.dmp

Filesize
56KB

Download
memory/3924-27-0x0000000070410000-0x0000000070767000-memory.dmp

Filesize
3.3MB

Download
memory/3924-5-0x0000000002E00000-0x0000000002E36000-memory.dmp

Filesize
216KB

Download
memory/3924-38-0x0000000007760000-0x0000000007804000-memory.dmp

Filesize
656KB

Download
memory/3924-6-0x000000007401E000-0x000000007401F000-memory.dmp

Filesize
4KB

Download
memory/3924-8-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/3924-7-0x0000000005660000-0x0000000005C8A000-memory.dmp

Filesize
6.2MB

Download
memory/3924-9-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/3924-10-0x0000000005430000-0x0000000005452000-memory.dmp

Filesize
136KB

Download
memory/3924-43-0x00000000079E0000-0x0000000007A76000-memory.dmp

Filesize
600KB

Download
memory/3924-42-0x00000000078D0000-0x00000000078DA000-memory.dmp

Filesize
40KB

Download
memory/3924-40-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/3924-11-0x00000000055D0000-0x0000000005636000-memory.dmp

Filesize
408KB

Download
memory/3924-12-0x0000000005C90000-0x0000000005CF6000-memory.dmp

Filesize
408KB

Download
memory/3924-41-0x0000000007890000-0x00000000078AA000-memory.dmp

Filesize
104KB

Download
memory/3924-39-0x0000000007ED0000-0x000000000854A000-memory.dmp

Filesize
6.5MB

Download
memory/3924-25-0x0000000007700000-0x0000000007734000-memory.dmp

Filesize
208KB

Download
memory/3924-26-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/3924-44-0x00000000078F0000-0x0000000007901000-memory.dmp

Filesize
68KB

Download
memory/3924-46-0x0000000007950000-0x0000000007965000-memory.dmp

Filesize
84KB

Download
memory/3924-22-0x00000000062E0000-0x00000000062FE000-memory.dmp

Filesize
120KB

Download
memory/3924-36-0x0000000007740000-0x000000000775E000-memory.dmp

Filesize
120KB

Download
memory/3924-23-0x0000000006310000-0x000000000635C000-memory.dmp

Filesize
304KB

Download
memory/3924-51-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/3924-48-0x00000000079C0000-0x00000000079C8000-memory.dmp

Filesize
32KB

Download
memory/3924-37-0x0000000074010000-0x00000000747C1000-memory.dmp

Filesize
7.7MB

Download
memory/3924-47-0x00000000079A0000-0x00000000079BA000-memory.dmp

Filesize
104KB

Download
memory/4332-92-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/4332-93-0x00000000704B0000-0x0000000070807000-memory.dmp

Filesize
3.3MB

Download
memory/4716-56-0x0000000000400000-0x0000000002B0D000-memory.dmp

Filesize
39.1MB

Download
memory/4716-128-0x0000000000400000-0x0000000002B0D000-memory.dmp

Filesize
39.1MB

Download
memory/4920-142-0x0000000000400000-0x0000000002B0D000-memory.dmp

Filesize
39.1MB

Download
memory/4920-206-0x0000000000400000-0x0000000002B0D000-memory.dmp

Filesize
39.1MB

Download
memory/4984-76-0x0000000007B70000-0x0000000007C14000-memory.dmp

Filesize
656KB

Download
memory/4984-78-0x0000000007F00000-0x0000000007F15000-memory.dmp

Filesize
84KB

Download
memory/4984-77-0x0000000007EB0000-0x0000000007EC1000-memory.dmp

Filesize
68KB

Download
memory/4984-66-0x0000000070280000-0x00000000702CC000-memory.dmp

Filesize
304KB

Download
memory/4984-67-0x00000000704B0000-0x0000000070807000-memory.dmp

Filesize
3.3MB

Download
memory/4984-65-0x00000000063D0000-0x0000000006727000-memory.dmp

Filesize
3.3MB

Download