glupteba | a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200

Analysis

max time kernel
150s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 12:44

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General

Target
a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Size 4.1MB
Sample240517-pyjaeshh82
SHA256 a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200
MD5 f437c5035e441d31d8204095aef8e93e
SHA1 147ac4854983e7cb64329c14aa774e54d54efdc1
SHA512 d3fac42a32c5324358101baea6391a18647b18e535316f1f6e79a2e7b9d64275b0b4448dca114af3d1f20522e8e327b57a0d4cd10b7170ff47d98f232a68f7e9
SSDEEP 98304:/BVs1p4PpCxl89qkqVHLjfQjDTn2r+Nb3:Ja1p4P0l8MfVLMTr3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit

Malware Config

Signatures

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

Glupteba payload 19 IoCs

resource	yara_rule
behavioral1/memory/2852-2-0x0000000004C00000-0x00000000054EB000-memory.dmp	family_glupteba
behavioral1/memory/2852-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2852-4-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2852-56-0x0000000004C00000-0x00000000054EB000-memory.dmp	family_glupteba
behavioral1/memory/2852-57-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2852-83-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/4928-82-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/4928-139-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-163-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-222-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-224-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-227-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-230-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-234-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-237-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-239-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-242-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-246-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral1/memory/2864-249-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4264	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2864	csrss.exe
3892	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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
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	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
File created	C:\Windows\rss\csrss.exe	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
412	powershell.exe
2996	powershell.exe
4444	powershell.exe
2124	powershell.exe
4852	powershell.exe
820	powershell.exe
756	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
3228	schtasks.exe
2136	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.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,-981 = "Kamchatka Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.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,-1821 = "Russia TZ 1 Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	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"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2124	powershell.exe
2124	powershell.exe
2852	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
2852	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4852	powershell.exe
4852	powershell.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
820	powershell.exe
820	powershell.exe
820	powershell.exe
756	powershell.exe
756	powershell.exe
412	powershell.exe
412	powershell.exe
2996	powershell.exe
2996	powershell.exe
4444	powershell.exe
4444	powershell.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
2864	csrss.exe
2864	csrss.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
2864	csrss.exe
2864	csrss.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe
3892	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	powershell.exe
Token: SeDebugPrivilege	2852	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Token: SeImpersonatePrivilege	2852	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
Token: SeDebugPrivilege	4852	powershell.exe
Token: SeDebugPrivilege	820	powershell.exe
Token: SeDebugPrivilege	756	powershell.exe
Token: SeDebugPrivilege	412	powershell.exe
Token: SeDebugPrivilege	2996	powershell.exe
Token: SeDebugPrivilege	4444	powershell.exe
Token: SeSystemEnvironmentPrivilege	2864	csrss.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2124	2852	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	92
PID 2852 wrote to memory of 2124	2852	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	92
PID 2852 wrote to memory of 2124	2852	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	92
PID 4928 wrote to memory of 4852	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	98
PID 4928 wrote to memory of 4852	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	98
PID 4928 wrote to memory of 4852	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	98
PID 4928 wrote to memory of 4552	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	101
PID 4928 wrote to memory of 4552	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	101
PID 4552 wrote to memory of 4264	4552	cmd.exe	103
PID 4552 wrote to memory of 4264	4552	cmd.exe	103
PID 4928 wrote to memory of 820	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	105
PID 4928 wrote to memory of 820	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	105
PID 4928 wrote to memory of 820	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	105
PID 4928 wrote to memory of 756	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	108
PID 4928 wrote to memory of 756	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	108
PID 4928 wrote to memory of 756	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	108
PID 4928 wrote to memory of 2864	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	110
PID 4928 wrote to memory of 2864	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	110
PID 4928 wrote to memory of 2864	4928	a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe	110
PID 2864 wrote to memory of 412	2864	csrss.exe	111
PID 2864 wrote to memory of 412	2864	csrss.exe	111
PID 2864 wrote to memory of 412	2864	csrss.exe	111
PID 2864 wrote to memory of 2996	2864	csrss.exe	117
PID 2864 wrote to memory of 2996	2864	csrss.exe	117
PID 2864 wrote to memory of 2996	2864	csrss.exe	117
PID 2864 wrote to memory of 4444	2864	csrss.exe	119
PID 2864 wrote to memory of 4444	2864	csrss.exe	119
PID 2864 wrote to memory of 4444	2864	csrss.exe	119
PID 2864 wrote to memory of 3892	2864	csrss.exe	121
PID 2864 wrote to memory of 3892	2864	csrss.exe	121

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\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
"C:\Users\Admin\AppData\Local\Temp\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2852
- 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:2124
- C:\Users\Admin\AppData\Local\Temp\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
  "C:\Users\Admin\AppData\Local\Temp\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.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:4928
- - 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:4852
- - 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:4552
  - - 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:4264
- - 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:820
- - 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:756
- - 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:2864
  - - 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:412
  - - 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:3228
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3684
  - - 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:2996
  - - 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:4444
  - - 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:3892
  - - 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:2136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_2dh5m5e3.qap.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2dh5m5e3.qap.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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