glupteba | d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24

Analysis

max time kernel
150s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
25/04/2024, 14:28

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General

Target
d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Size 4.2MB
Sample240425-rtgl5sbf66
SHA256 d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24
MD5 82ce795e9c485019040a278cde5c6929
SHA1 510d4c3ca6e66d3894f0d4c0a188cc3b5b378111
SHA512 5064b05c923aaa6408124d4a9a6ed9f999bfefc0fbced039bb54cbbc4f0c8cd4955cfa6a3928e32607bcd93d7acd304724bf2dc00ce56a17d6ed9ea022cc0805
SSDEEP 98304:3mURKl+8qDh3QmhY8p8MY+25NVfxUUYlu5WDiAz7Lb7k:3mUk+8qDFQ58eH+6NVfEE4tb7k
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/360-2-0x0000000005330000-0x0000000005C1B000-memory.dmp	family_glupteba
behavioral2/memory/360-3-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/360-51-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/360-53-0x0000000005330000-0x0000000005C1B000-memory.dmp	family_glupteba
behavioral2/memory/2736-55-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/2736-99-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/2736-118-0x00000000036D0000-0x0000000003ACE000-memory.dmp	family_glupteba
behavioral2/memory/2736-128-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/2736-145-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-213-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-245-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-254-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-256-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-258-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-260-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-262-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-264-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-266-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-268-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/3456-270-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba

Blocklisted process makes network request 3 IoCs

flow	pid	Process
17	3076	Process not Found
18	3076	Process not Found
19	3076	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5028	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3456	csrss.exe
2016	injector.exe
2832	windefender.exe
2528	windefender.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000400000002a9c4-248.dat	upx
behavioral2/memory/2832-253-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2528-255-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2528-259-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2528-265-0x0000000000400000-0x00000000008DF000-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-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.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\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
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	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
File created	C:\Windows\rss\csrss.exe	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.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
4968	sc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1740	360	WerFault.exe	79
3032	360	WerFault.exe	79

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
1068	schtasks.exe
3076	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
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\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.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\@tzres.dll,-2752 = "Tomsk Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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\@tzres.dll,-431 = "Iran Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	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,-842 = "Argentina Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time"	windefender.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,-362 = "GTB Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.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\@tzres.dll,-731 = "Fiji Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4176	powershell.exe
4176	powershell.exe
360	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
360	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
4956	powershell.exe
4956	powershell.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
4620	powershell.exe
4620	powershell.exe
4668	powershell.exe
4668	powershell.exe
3080	powershell.exe
3080	powershell.exe
2660	powershell.exe
2660	powershell.exe
1628	powershell.exe
1628	powershell.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
3456	csrss.exe
3456	csrss.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
3456	csrss.exe
3456	csrss.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
3456	csrss.exe
3456	csrss.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe
2016	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	4176	powershell.exe
Token: SeDebugPrivilege	360	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Token: SeImpersonatePrivilege	360	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
Token: SeDebugPrivilege	4956	powershell.exe
Token: SeDebugPrivilege	4620	powershell.exe
Token: SeDebugPrivilege	4668	powershell.exe
Token: SeDebugPrivilege	3080	powershell.exe
Token: SeDebugPrivilege	2660	powershell.exe
Token: SeDebugPrivilege	1628	powershell.exe
Token: SeSystemEnvironmentPrivilege	3456	csrss.exe
Token: SeSecurityPrivilege	4968	sc.exe
Token: SeSecurityPrivilege	4968	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 360 wrote to memory of 4176	360	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	81
PID 360 wrote to memory of 4176	360	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	81
PID 360 wrote to memory of 4176	360	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	81
PID 2736 wrote to memory of 4956	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	91
PID 2736 wrote to memory of 4956	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	91
PID 2736 wrote to memory of 4956	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	91
PID 2736 wrote to memory of 1008	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	93
PID 2736 wrote to memory of 1008	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	93
PID 1008 wrote to memory of 5028	1008	cmd.exe	95
PID 1008 wrote to memory of 5028	1008	cmd.exe	95
PID 2736 wrote to memory of 4620	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	96
PID 2736 wrote to memory of 4620	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	96
PID 2736 wrote to memory of 4620	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	96
PID 2736 wrote to memory of 4668	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	98
PID 2736 wrote to memory of 4668	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	98
PID 2736 wrote to memory of 4668	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	98
PID 2736 wrote to memory of 3456	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	100
PID 2736 wrote to memory of 3456	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	100
PID 2736 wrote to memory of 3456	2736	d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe	100
PID 3456 wrote to memory of 3080	3456	csrss.exe	104
PID 3456 wrote to memory of 3080	3456	csrss.exe	104
PID 3456 wrote to memory of 3080	3456	csrss.exe	104
PID 3456 wrote to memory of 2660	3456	csrss.exe	112
PID 3456 wrote to memory of 2660	3456	csrss.exe	112
PID 3456 wrote to memory of 2660	3456	csrss.exe	112
PID 3456 wrote to memory of 1628	3456	csrss.exe	115
PID 3456 wrote to memory of 1628	3456	csrss.exe	115
PID 3456 wrote to memory of 1628	3456	csrss.exe	115
PID 3456 wrote to memory of 2016	3456	csrss.exe	117
PID 3456 wrote to memory of 2016	3456	csrss.exe	117
PID 2832 wrote to memory of 844	2832	windefender.exe	123
PID 2832 wrote to memory of 844	2832	windefender.exe	123
PID 2832 wrote to memory of 844	2832	windefender.exe	123
PID 844 wrote to memory of 4968	844	cmd.exe	124
PID 844 wrote to memory of 4968	844	cmd.exe	124
PID 844 wrote to memory of 4968	844	cmd.exe	124

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\d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
"C:\Users\Admin\AppData\Local\Temp\d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:360
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4176
- C:\Users\Admin\AppData\Local\Temp\d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.exe
  "C:\Users\Admin\AppData\Local\Temp\d13e7ff820371a3fd90c13cfb3a9cf3b7d05c977d59c88e9580108f2858abd24.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:2736
- - 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:4956
- - 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:1008
  - - 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:5028
- - 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:4620
- - 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:4668
- - 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:3456
  - - 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:3080
  - - 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:1068
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4664
  - - 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:2660
  - - 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:1628
  - - 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:2016
  - - 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:3076
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2832
    - - 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:844
      - 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:4968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 360 -s 828
  2⤵
  - Program crash
  PID:1740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 360 -s 952
  2⤵
  - Program crash
  PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 360 -ip 360
1⤵
PID:4504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 360 -ip 360
1⤵
PID:4548

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2528

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_b4vu2atq.kdm.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b4vu2atq.kdm.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 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
MD5 d0c46cad6c0778401e21910bd6b56b70
SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
MD5 SHA1 SHA512

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