glupteba | af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2024, 12:49

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General

Target

af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Size

4.2MB
MD5

f6f4ac2faba25063d45d58898b15f67d
SHA1

9a846601fc2b101b75688a7b51ebc3690f2e033b
SHA256

af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236
SHA512

1c9d5f7a2b527efe1c4b675c5ef73e3243f4368a9f9e830668850553a577e189702f2fecca8101c134d481b86b87fb50cc2b7e1ef4a3994506b7327cb686f95b
SSDEEP

98304:Ab+3Tqod9xs7WmePO2nuapcHvVcyQJeREDXoxNTQNO8zLe6:3Dj9xsgO9aeceR8YkzH

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 18 IoCs

resource	yara_rule
behavioral1/memory/1980-2-0x00000000064C0000-0x0000000006DAB000-memory.dmp	family_glupteba
behavioral1/memory/1980-3-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/1980-76-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/4936-130-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/1980-155-0x00000000064C0000-0x0000000006DAB000-memory.dmp	family_glupteba
behavioral1/memory/716-157-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-215-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-217-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-220-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-223-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-226-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-229-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-232-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-235-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-238-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-241-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-244-0x0000000000400000-0x000000000441E000-memory.dmp	family_glupteba
behavioral1/memory/716-247-0x0000000000400000-0x000000000441E000-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
4328	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
716	csrss.exe
4472	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-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\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 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

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	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
File created	C:\Windows\rss\csrss.exe	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.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
4372	schtasks.exe
2448	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,-562 = "SE Asia Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.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,-442 = "Arabian Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	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,-2491 = "Aus Central W. Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	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,-652 = "AUS Central Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.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,-2432 = "Cuba Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.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\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\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,-2391 = "Aleutian Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	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,-2181 = "Astrakhan Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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,-112 = "Eastern Standard Time"	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4428	powershell.exe
4428	powershell.exe
1980	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
1980	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
3584	powershell.exe
3584	powershell.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
4472	powershell.exe
4472	powershell.exe
992	powershell.exe
992	powershell.exe
4640	powershell.exe
4640	powershell.exe
396	powershell.exe
396	powershell.exe
1524	powershell.exe
1524	powershell.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
716	csrss.exe
716	csrss.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
716	csrss.exe
716	csrss.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe
4472	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	4428	powershell.exe
Token: SeDebugPrivilege	1980	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Token: SeImpersonatePrivilege	1980	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
Token: SeDebugPrivilege	3584	powershell.exe
Token: SeDebugPrivilege	4472	powershell.exe
Token: SeDebugPrivilege	992	powershell.exe
Token: SeDebugPrivilege	4640	powershell.exe
Token: SeDebugPrivilege	396	powershell.exe
Token: SeDebugPrivilege	1524	powershell.exe
Token: SeSystemEnvironmentPrivilege	716	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 4428	1980	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	86
PID 1980 wrote to memory of 4428	1980	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	86
PID 1980 wrote to memory of 4428	1980	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	86
PID 4936 wrote to memory of 3584	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	91
PID 4936 wrote to memory of 3584	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	91
PID 4936 wrote to memory of 3584	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	91
PID 4936 wrote to memory of 1552	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	93
PID 4936 wrote to memory of 1552	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	93
PID 1552 wrote to memory of 4328	1552	cmd.exe	95
PID 1552 wrote to memory of 4328	1552	cmd.exe	95
PID 4936 wrote to memory of 4472	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	96
PID 4936 wrote to memory of 4472	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	96
PID 4936 wrote to memory of 4472	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	96
PID 4936 wrote to memory of 992	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	98
PID 4936 wrote to memory of 992	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	98
PID 4936 wrote to memory of 992	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	98
PID 4936 wrote to memory of 716	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	100
PID 4936 wrote to memory of 716	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	100
PID 4936 wrote to memory of 716	4936	af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe	100
PID 716 wrote to memory of 4640	716	csrss.exe	101
PID 716 wrote to memory of 4640	716	csrss.exe	101
PID 716 wrote to memory of 4640	716	csrss.exe	101
PID 716 wrote to memory of 396	716	csrss.exe	108
PID 716 wrote to memory of 396	716	csrss.exe	108
PID 716 wrote to memory of 396	716	csrss.exe	108
PID 716 wrote to memory of 1524	716	csrss.exe	110
PID 716 wrote to memory of 1524	716	csrss.exe	110
PID 716 wrote to memory of 1524	716	csrss.exe	110
PID 716 wrote to memory of 4472	716	csrss.exe	112
PID 716 wrote to memory of 4472	716	csrss.exe	112

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\af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
"C:\Users\Admin\AppData\Local\Temp\af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4428
- C:\Users\Admin\AppData\Local\Temp\af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.exe
  "C:\Users\Admin\AppData\Local\Temp\af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236.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:4936
- - 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:3584
- - 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:1552
  - - 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:4328
- - 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:4472
- - 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:992
- - 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:716
  - - 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:4640
  - - 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:4372
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1472
  - - 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:396
  - - 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:1524
  - - 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:4472
  - - 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:2448

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_tg0csawh.0z2.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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
19KB

MD5
7184b75c81112bb5a03fb9af7c47270d

SHA1
4d306c596d24efbfd06b7e75c93e03a7df6c65c5

SHA256
154b61adbeb2f1f93ba9a7b04d71d13ea8a6e281160a39eef0d90f68f56fd621

SHA512
4a21f29764101a638ebda4bf14b7e1456a38e0efc5af66fbd8c1d1c225717a59146df6c0d59958803d3e971251e195c4d18dbac42ca3525a1ede52a22cca70c0

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

Filesize
19KB

MD5
b08a99d47a936e2bd6c175831ee47775

SHA1
4fea4fa55738bc56467bafc185b192dc72dd3ef4

SHA256
ed8cc22c26fbb865b19d15d2de98b823841b0f38852ef48d3ec6b6e4318f86fd

SHA512
a83c066c57dbad61f3a047d7556f95cd769977448bc600d85c06d73544f6b621166ea2ae33e7f40e0ef70169ac5c8fb80fb7010eb9d3c19c7e493b7a5f1d8bf0

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

Filesize
19KB

MD5
597010a9a1bd6fcbdc8addad2db0d36f

SHA1
68e1a4886132bbb6dfb13509b2fc68900a9c0013

SHA256
6019e50becd8234a155ae9278eccdb96f2e338070cb0f5d31f9b6753e9758da1

SHA512
b1bfb11ce2aa365b9408a5364908999db9ebc957de7d21ae29855c8968cf38df448afc5f2b81cc720194e9cb7491ab27f91ddba6abbaafc79be141286b830eab

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

Filesize
19KB

MD5
2dd1a5099678d57fa03318a38a05c772

SHA1
eb74feb7699043cc55c9bc1aa9fcff328e2b4b95

SHA256
abd5251fd43c0b964d22ae96630f1ebbddd396ff3d27c375936138d00c11c968

SHA512
c37b08072db5b791c944d50332cddb1660d207df89704a7b8284d119d232f5682606cd9a986553aed20df68c522bfe5a31fa53ad76f675a60241d870cc1727db

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

Filesize
19KB

MD5
8de24f9264ea253b770f93e40ef0c9e5

SHA1
be45929b352710a0518d071dddf49bcd39c0ea7d

SHA256
e216922b442902bb217109480d9651a1aabc875cc08065fcd50f370a4a7980e2

SHA512
96d0929d34ab07cda32444bbe47f39b66d3860341d7869aac5459ecd17369f542c3e59b63bf307cf42d714865c76de0c148ffd8326db1636f4b84ae187dc1e70

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

Filesize
4.2MB

MD5
f6f4ac2faba25063d45d58898b15f67d

SHA1
9a846601fc2b101b75688a7b51ebc3690f2e033b

SHA256
af94e49c208a10b8c8f1019089678cf0094f06d8f0e18cbf26855f2797724236

SHA512
1c9d5f7a2b527efe1c4b675c5ef73e3243f4368a9f9e830668850553a577e189702f2fecca8101c134d481b86b87fb50cc2b7e1ef4a3994506b7327cb686f95b

Download Submit
memory/396-168-0x00000000059D0000-0x0000000005D24000-memory.dmp

Filesize
3.3MB

Download
memory/396-170-0x0000000005F50000-0x0000000005F9C000-memory.dmp

Filesize
304KB

Download
memory/396-171-0x0000000070D70000-0x0000000070DBC000-memory.dmp

Filesize
304KB

Download
memory/396-172-0x0000000070EF0000-0x0000000071244000-memory.dmp

Filesize
3.3MB

Download
memory/396-182-0x0000000007150000-0x00000000071F3000-memory.dmp

Filesize
652KB

Download
memory/396-183-0x00000000074B0000-0x00000000074C1000-memory.dmp

Filesize
68KB

Download
memory/396-184-0x0000000005990000-0x00000000059A4000-memory.dmp

Filesize
80KB

Download
memory/716-226-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-235-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-247-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-215-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-217-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-220-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-223-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-229-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-232-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-244-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-157-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-238-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/716-241-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/992-113-0x0000000070E50000-0x0000000070E9C000-memory.dmp

Filesize
304KB

Download
memory/992-114-0x0000000070FD0000-0x0000000071324000-memory.dmp

Filesize
3.3MB

Download
memory/1524-196-0x0000000070D70000-0x0000000070DBC000-memory.dmp

Filesize
304KB

Download
memory/1524-197-0x0000000070EF0000-0x0000000071244000-memory.dmp

Filesize
3.3MB

Download
memory/1980-76-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/1980-131-0x0000000004720000-0x0000000004B1E000-memory.dmp

Filesize
4.0MB

Download
memory/1980-1-0x0000000004720000-0x0000000004B1E000-memory.dmp

Filesize
4.0MB

Download
memory/1980-2-0x00000000064C0000-0x0000000006DAB000-memory.dmp

Filesize
8.9MB

Download
memory/1980-3-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download
memory/1980-155-0x00000000064C0000-0x0000000006DAB000-memory.dmp

Filesize
8.9MB

Download
memory/3584-74-0x0000000007760000-0x0000000007803000-memory.dmp

Filesize
652KB

Download
memory/3584-75-0x0000000007A80000-0x0000000007A91000-memory.dmp

Filesize
68KB

Download
memory/3584-77-0x0000000007AD0000-0x0000000007AE4000-memory.dmp

Filesize
80KB

Download
memory/3584-63-0x0000000070E50000-0x0000000070E9C000-memory.dmp

Filesize
304KB

Download
memory/3584-53-0x0000000005F20000-0x0000000006274000-memory.dmp

Filesize
3.3MB

Download
memory/3584-64-0x00000000715D0000-0x0000000071924000-memory.dmp

Filesize
3.3MB

Download
memory/4428-41-0x0000000007AA0000-0x0000000007B43000-memory.dmp

Filesize
652KB

Download
memory/4428-26-0x0000000007EE0000-0x000000000855A000-memory.dmp

Filesize
6.5MB

Download
memory/4428-47-0x0000000007CF0000-0x0000000007D0A000-memory.dmp

Filesize
104KB

Download
memory/4428-5-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/4428-45-0x0000000007BF0000-0x0000000007BFE000-memory.dmp

Filesize
56KB

Download
memory/4428-4-0x0000000004F10000-0x0000000004F46000-memory.dmp

Filesize
216KB

Download
memory/4428-6-0x0000000005080000-0x0000000005090000-memory.dmp

Filesize
64KB

Download
memory/4428-48-0x0000000007C40000-0x0000000007C48000-memory.dmp

Filesize
32KB

Download
memory/4428-44-0x0000000007BB0000-0x0000000007BC1000-memory.dmp

Filesize
68KB

Download
memory/4428-43-0x0000000007C50000-0x0000000007CE6000-memory.dmp

Filesize
600KB

Download
memory/4428-42-0x0000000007B90000-0x0000000007B9A000-memory.dmp

Filesize
40KB

Download
memory/4428-51-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/4428-40-0x0000000007A80000-0x0000000007A9E000-memory.dmp

Filesize
120KB

Download
memory/4428-30-0x0000000070FD0000-0x0000000071324000-memory.dmp

Filesize
3.3MB

Download
memory/4428-28-0x0000000007A40000-0x0000000007A72000-memory.dmp

Filesize
200KB

Download
memory/4428-29-0x0000000070E50000-0x0000000070E9C000-memory.dmp

Filesize
304KB

Download
memory/4428-27-0x0000000007880000-0x000000000789A000-memory.dmp

Filesize
104KB

Download
memory/4428-46-0x0000000007C00000-0x0000000007C14000-memory.dmp

Filesize
80KB

Download
memory/4428-25-0x00000000077E0000-0x0000000007856000-memory.dmp

Filesize
472KB

Download
memory/4428-24-0x0000000006A30000-0x0000000006A74000-memory.dmp

Filesize
272KB

Download
memory/4428-23-0x0000000006510000-0x000000000655C000-memory.dmp

Filesize
304KB

Download
memory/4428-22-0x00000000064B0000-0x00000000064CE000-memory.dmp

Filesize
120KB

Download
memory/4428-21-0x0000000006030000-0x0000000006384000-memory.dmp

Filesize
3.3MB

Download
memory/4428-11-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/4428-10-0x0000000005DE0000-0x0000000005E46000-memory.dmp

Filesize
408KB

Download
memory/4428-9-0x0000000005500000-0x0000000005522000-memory.dmp

Filesize
136KB

Download
memory/4428-8-0x00000000056C0000-0x0000000005CE8000-memory.dmp

Filesize
6.2MB

Download
memory/4428-7-0x0000000005080000-0x0000000005090000-memory.dmp

Filesize
64KB

Download
memory/4472-92-0x0000000070FD0000-0x0000000071324000-memory.dmp

Filesize
3.3MB

Download
memory/4472-91-0x0000000070E50000-0x0000000070E9C000-memory.dmp

Filesize
304KB

Download
memory/4640-143-0x0000000070FD0000-0x0000000071324000-memory.dmp

Filesize
3.3MB

Download
memory/4640-142-0x0000000070E50000-0x0000000070E9C000-memory.dmp

Filesize
304KB

Download
memory/4936-130-0x0000000000400000-0x000000000441E000-memory.dmp

Filesize
64.1MB

Download