glupteba | 3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef

Analysis

max time kernel
150s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
19/04/2024, 22:54

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General

Target
3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Size 4.2MB
Sample240419-2v13aahf87
SHA256 3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef
MD5 39247995bc06c1327c3254514c532460
SHA1 183fc0c2e1af69bc35cd244aa188fd507e18e6fd
SHA512 3d80046716695cbfcd5fd5ba1fcde5ee841374f1a376950b8a2646d078ea5fb505edda54b77c062aa2f789033597468d9facfa963ca5ec741f49222a8b994a1b
SSDEEP 98304:3/40EOOAEftLoGWLNDgTXMgGOTrFzBqlMJaGItfGS:PdVQtLoTZDg5GO9Bqlca
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit upx

Malware Config

Signatures

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

Glupteba payload 20 IoCs

resource	yara_rule
behavioral2/memory/4316-2-0x00000000041F0000-0x0000000004ADB000-memory.dmp	family_glupteba
behavioral2/memory/4316-3-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/5976-54-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/4316-53-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/5976-55-0x0000000003FA0000-0x000000000488B000-memory.dmp	family_glupteba
behavioral2/memory/5976-114-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/5976-150-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-245-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-254-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-255-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-257-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-260-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-262-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-263-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-265-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-267-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-270-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-272-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-273-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3980-275-0x0000000000400000-0x0000000001E06000-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
5620	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3980	csrss.exe
964	injector.exe
2324	windefender.exe
2720	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002aa65-248.dat	upx
behavioral2/memory/2324-253-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2720-256-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2720-259-0x0000000000400000-0x00000000008DF000-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-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\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	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\rss	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
File created	C:\Windows\rss\csrss.exe	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe

Launches sc.exe 1 IoCs

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

pid	Process
1408	sc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
780	4316	WerFault.exe	79
3632	5976	WerFault.exe	85

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
3468	schtasks.exe
932	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.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\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.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\@tzres.dll,-2611 = "Bougainville Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.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\@tzres.dll,-841 = "Argentina Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.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\@tzres.dll,-2141 = "Transbaikal Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	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\26\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1676	powershell.exe
1676	powershell.exe
4316	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
4316	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5888	powershell.exe
5888	powershell.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
5696	powershell.exe
5696	powershell.exe
1624	powershell.exe
1624	powershell.exe
5588	powershell.exe
5588	powershell.exe
824	powershell.exe
824	powershell.exe
4676	powershell.exe
4676	powershell.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
3980	csrss.exe
3980	csrss.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
3980	csrss.exe
3980	csrss.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
3980	csrss.exe
3980	csrss.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe
964	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	powershell.exe
Token: SeDebugPrivilege	4316	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Token: SeImpersonatePrivilege	4316	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
Token: SeDebugPrivilege	5888	powershell.exe
Token: SeDebugPrivilege	5696	powershell.exe
Token: SeDebugPrivilege	1624	powershell.exe
Token: SeDebugPrivilege	5588	powershell.exe
Token: SeDebugPrivilege	824	powershell.exe
Token: SeDebugPrivilege	4676	powershell.exe
Token: SeSystemEnvironmentPrivilege	3980	csrss.exe
Token: SeSecurityPrivilege	1408	sc.exe
Token: SeSecurityPrivilege	1408	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 1676	4316	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	81
PID 4316 wrote to memory of 1676	4316	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	81
PID 4316 wrote to memory of 1676	4316	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	81
PID 5976 wrote to memory of 5888	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	89
PID 5976 wrote to memory of 5888	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	89
PID 5976 wrote to memory of 5888	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	89
PID 5976 wrote to memory of 4828	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	91
PID 5976 wrote to memory of 4828	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	91
PID 4828 wrote to memory of 5620	4828	cmd.exe	93
PID 4828 wrote to memory of 5620	4828	cmd.exe	93
PID 5976 wrote to memory of 5696	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	94
PID 5976 wrote to memory of 5696	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	94
PID 5976 wrote to memory of 5696	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	94
PID 5976 wrote to memory of 1624	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	96
PID 5976 wrote to memory of 1624	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	96
PID 5976 wrote to memory of 1624	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	96
PID 5976 wrote to memory of 3980	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	98
PID 5976 wrote to memory of 3980	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	98
PID 5976 wrote to memory of 3980	5976	3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe	98
PID 3980 wrote to memory of 5588	3980	csrss.exe	101
PID 3980 wrote to memory of 5588	3980	csrss.exe	101
PID 3980 wrote to memory of 5588	3980	csrss.exe	101
PID 3980 wrote to memory of 824	3980	csrss.exe	106
PID 3980 wrote to memory of 824	3980	csrss.exe	106
PID 3980 wrote to memory of 824	3980	csrss.exe	106
PID 3980 wrote to memory of 4676	3980	csrss.exe	109
PID 3980 wrote to memory of 4676	3980	csrss.exe	109
PID 3980 wrote to memory of 4676	3980	csrss.exe	109
PID 3980 wrote to memory of 964	3980	csrss.exe	111
PID 3980 wrote to memory of 964	3980	csrss.exe	111
PID 2324 wrote to memory of 2304	2324	windefender.exe	117
PID 2324 wrote to memory of 2304	2324	windefender.exe	117
PID 2324 wrote to memory of 2304	2324	windefender.exe	117
PID 2304 wrote to memory of 1408	2304	cmd.exe	118
PID 2304 wrote to memory of 1408	2304	cmd.exe	118
PID 2304 wrote to memory of 1408	2304	cmd.exe	118

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\3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
"C:\Users\Admin\AppData\Local\Temp\3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1676
- C:\Users\Admin\AppData\Local\Temp\3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.exe
  "C:\Users\Admin\AppData\Local\Temp\3303a7d33b2d7506236d09589201b6c9d82b8d7b209970df48a88381bdd84fef.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:5976
- - 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:5888
- - 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:4828
  - - 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:5620
- - 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:5696
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1624
- - 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:3980
  - - 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:5588
  - - 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:3468
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2752
  - - 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:824
  - - 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:4676
  - - 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:964
  - - 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:932
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2324
    - - 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:2304
      - 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:1408
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5976 -s 808
    3⤵
    - Program crash
    PID:3632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 940
  2⤵
  - Program crash
  PID:780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4316 -ip 4316
1⤵
PID:3316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 5976 -ip 5976
1⤵
PID:1756

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2720

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

__PSScriptPolicyTest_lkgifbbb.thu.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lkgifbbb.thu.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 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
MD5 ac4917a885cf6050b1a483e4bc4d2ea5
SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
MD5 SHA1 SHA512

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