glupteba | 38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2

Analysis

max time kernel
153s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 12:44

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Size 4.1MB
Sample240516-pyg3csdb3z
SHA256 38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2
MD5 529eb810c50b92db0d4023037472c536
SHA1 6d0139357967ca54649b27d8770b0c8701aff5fd
SHA512 136ee3092386d02d1c8bc24c20a300dd979f3311ad297412569c42677ca7e3c029ca32308ada6ae769511ef346af1a177714c00deb80abf33d0593f5f6f45797
SSDEEP 98304:cl9GTbLtL99uWlQGfUFGGhNMfnjCzwWu2csDCx3z+tD:hT3oWlQMUAMlWxj+tD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit upx

Malware Config

Signatures

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

Glupteba payload 18 IoCs

resource	yara_rule
behavioral2/memory/3248-2-0x0000000002EC0000-0x00000000037AB000-memory.dmp	family_glupteba
behavioral2/memory/3248-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3248-4-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3248-23-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3248-28-0x0000000002EC0000-0x00000000037AB000-memory.dmp	family_glupteba
behavioral2/memory/3248-31-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3248-34-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3248-55-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3248-65-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4732-93-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4732-141-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4732-173-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3060-198-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3060-232-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3060-238-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3060-247-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3060-251-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3060-255-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1448	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3060	csrss.exe
3444	injector.exe
3280	windefender.exe
3472	windefender.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0004000000000739-237.dat	upx
behavioral2/memory/3280-239-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3472-242-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3280-244-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3472-248-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3472-256-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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 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

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	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
File created	C:\Windows\rss\csrss.exe	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1528	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
692	powershell.exe
4312	powershell.exe
432	powershell.exe
1408	powershell.exe
4204	powershell.exe
2020	powershell.exe
2140	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
336	schtasks.exe
4328	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time"	windefender.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\22\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.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\22\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-491 = "India Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-12 = "Azores Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\22\52C64B7E\@tzres.dll,-161 = "Central Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2020	powershell.exe
2020	powershell.exe
3248	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
3248	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
2140	powershell.exe
2140	powershell.exe
2140	powershell.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
4312	powershell.exe
4312	powershell.exe
4312	powershell.exe
432	powershell.exe
432	powershell.exe
432	powershell.exe
1408	powershell.exe
1408	powershell.exe
1408	powershell.exe
4204	powershell.exe
4204	powershell.exe
4204	powershell.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3060	csrss.exe
3060	csrss.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3060	csrss.exe
3060	csrss.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3060	csrss.exe
3060	csrss.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe
3444	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2020	powershell.exe
Token: SeDebugPrivilege	3248	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Token: SeImpersonatePrivilege	3248	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
Token: SeDebugPrivilege	2140	powershell.exe
Token: SeDebugPrivilege	692	powershell.exe
Token: SeDebugPrivilege	4312	powershell.exe
Token: SeDebugPrivilege	432	powershell.exe
Token: SeDebugPrivilege	1408	powershell.exe
Token: SeDebugPrivilege	4204	powershell.exe
Token: SeSystemEnvironmentPrivilege	3060	csrss.exe
Token: SeSecurityPrivilege	1528	sc.exe
Token: SeSecurityPrivilege	1528	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 2020	3248	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	92
PID 3248 wrote to memory of 2020	3248	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	92
PID 3248 wrote to memory of 2020	3248	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	92
PID 4732 wrote to memory of 2140	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	104
PID 4732 wrote to memory of 2140	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	104
PID 4732 wrote to memory of 2140	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	104
PID 4732 wrote to memory of 2384	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	106
PID 4732 wrote to memory of 2384	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	106
PID 2384 wrote to memory of 1448	2384	cmd.exe	108
PID 2384 wrote to memory of 1448	2384	cmd.exe	108
PID 4732 wrote to memory of 692	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	109
PID 4732 wrote to memory of 692	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	109
PID 4732 wrote to memory of 692	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	109
PID 4732 wrote to memory of 4312	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	111
PID 4732 wrote to memory of 4312	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	111
PID 4732 wrote to memory of 4312	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	111
PID 4732 wrote to memory of 3060	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	113
PID 4732 wrote to memory of 3060	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	113
PID 4732 wrote to memory of 3060	4732	38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe	113
PID 3060 wrote to memory of 432	3060	csrss.exe	114
PID 3060 wrote to memory of 432	3060	csrss.exe	114
PID 3060 wrote to memory of 432	3060	csrss.exe	114
PID 3060 wrote to memory of 1408	3060	csrss.exe	119
PID 3060 wrote to memory of 1408	3060	csrss.exe	119
PID 3060 wrote to memory of 1408	3060	csrss.exe	119
PID 3060 wrote to memory of 4204	3060	csrss.exe	122
PID 3060 wrote to memory of 4204	3060	csrss.exe	122
PID 3060 wrote to memory of 4204	3060	csrss.exe	122
PID 3060 wrote to memory of 3444	3060	csrss.exe	124
PID 3060 wrote to memory of 3444	3060	csrss.exe	124
PID 3280 wrote to memory of 3392	3280	windefender.exe	130
PID 3280 wrote to memory of 3392	3280	windefender.exe	130
PID 3280 wrote to memory of 3392	3280	windefender.exe	130
PID 3392 wrote to memory of 1528	3392	cmd.exe	131
PID 3392 wrote to memory of 1528	3392	cmd.exe	131
PID 3392 wrote to memory of 1528	3392	cmd.exe	131

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\38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
"C:\Users\Admin\AppData\Local\Temp\38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3248
- 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:2020
- C:\Users\Admin\AppData\Local\Temp\38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.exe
  "C:\Users\Admin\AppData\Local\Temp\38c3513c60b6da1156c8d641fa87da2e4c834176096bd70a0fb697088ac9bdd2.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:4732
- - 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:2140
- - 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:2384
  - - 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:1448
- - 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:692
- - 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:4312
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3060
  - - 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:432
  - - 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:336
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4248
  - - 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:1408
  - - 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:4204
  - - 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:3444
  - - 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:4328
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3280
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3392
      - C:\Windows\SysWOW64\sc.exe
        
        sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        6⤵
        Launches sc.exe
        Suspicious use of AdjustPrivilegeToken
        
        PID:1528

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4120 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
1⤵
PID:2080

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_cbpb0hnd.uhv.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cbpb0hnd.uhv.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

injector.exe

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

Submit Download

powershell.exe.log

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

Submit Download