glupteba | a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed

Analysis

max time kernel
14s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 15:12

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General

Target
a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Size 4.2MB
Sample240417-slbxcsfa6s
SHA256 a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed
MD5 b1d0ddfa7404e17537be5943477f4a88
SHA1 4ed9cad6684cf6a6092fcac6fda1af51cf9fab98
SHA512 a367bd09f7a85589c3364df9ca9ca9ea4fcb86c57922e9d8ee3454447c150be4733029a4747225bcd2757759a9b64a035e3e33730c229ccf54c88c5b539e65a4
SSDEEP 49152:DMHICC+QSI60PU9JxQmCyuoNbdaRjKWhg6Fgwtw907GqxUhn/2B3sxVJ7i+NBPic:AHFCy0PUDbdaR/a+iGqhn/GsxbuoAc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba dropper evasion loader persistence upx

Malware Config

Signatures

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

Glupteba payload 19 IoCs

resource	yara_rule
behavioral1/memory/4084-2-0x0000000005190000-0x0000000005A7B000-memory.dmp	family_glupteba
behavioral1/memory/4084-3-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/3936-56-0x0000000005150000-0x0000000005A3B000-memory.dmp	family_glupteba
behavioral1/memory/3936-67-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4084-83-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/3936-190-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-257-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-268-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-272-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-276-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-280-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-284-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-288-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-292-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-296-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-300-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-304-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-308-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4636-312-0x0000000000400000-0x000000000310E000-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
4352	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
4636	csrss.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000023403-262.dat	upx
behavioral1/memory/5060-265-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/2376-271-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/2376-279-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
File created	C:\Windows\rss\csrss.exe	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe

Launches sc.exe 1 IoCs

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

pid	Process
224	sc.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
5088	schtasks.exe
4628	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
404	powershell.exe
404	powershell.exe
4084	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
4084	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
968	powershell.exe
968	powershell.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
2848	powershell.exe
2848	powershell.exe
524	powershell.exe
524	powershell.exe
5048	powershell.exe
5048	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	404	powershell.exe
Token: SeDebugPrivilege	4084	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Token: SeImpersonatePrivilege	4084	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
Token: SeDebugPrivilege	968	powershell.exe
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	524	powershell.exe
Token: SeDebugPrivilege	5048	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 404	4084	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	90
PID 4084 wrote to memory of 404	4084	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	90
PID 4084 wrote to memory of 404	4084	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	90
PID 3936 wrote to memory of 968	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	100
PID 3936 wrote to memory of 968	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	100
PID 3936 wrote to memory of 968	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	100
PID 3936 wrote to memory of 2528	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	102
PID 3936 wrote to memory of 2528	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	102
PID 2528 wrote to memory of 4352	2528	cmd.exe	104
PID 2528 wrote to memory of 4352	2528	cmd.exe	104
PID 3936 wrote to memory of 2848	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	105
PID 3936 wrote to memory of 2848	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	105
PID 3936 wrote to memory of 2848	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	105
PID 3936 wrote to memory of 524	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	107
PID 3936 wrote to memory of 524	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	107
PID 3936 wrote to memory of 524	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	107
PID 3936 wrote to memory of 4636	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	109
PID 3936 wrote to memory of 4636	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	109
PID 3936 wrote to memory of 4636	3936	a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe	109
PID 4636 wrote to memory of 5048	4636	csrss.exe	110
PID 4636 wrote to memory of 5048	4636	csrss.exe	110
PID 4636 wrote to memory of 5048	4636	csrss.exe	110

C:\Users\Admin\AppData\Local\Temp\a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
"C:\Users\Admin\AppData\Local\Temp\a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:404
- C:\Users\Admin\AppData\Local\Temp\a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.exe
  "C:\Users\Admin\AppData\Local\Temp\a4936c43c5acb42b7ca51dd78c8eda46fe90569e1673cc9bea4cf77f4c16f6ed.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:3936
- - 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:968
- - 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:2528
  - - 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:4352
- - 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:2848
- - 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:524
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4636
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5048
  - - 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:5088
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2580
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:4424
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:4516
  - - 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⤵
      PID:3908
  - - 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:4628
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:5060
    - - 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⤵
        
        PID:2184
      - 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
        
        PID:224

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:2376

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_k33ur52y.wcz.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k33ur52y.wcz.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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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

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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

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