glupteba | 7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a

Analysis

max time kernel
149s
max time network
151s
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, 12:48

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General

Target
7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Size 4.2MB
Sample240425-p1v21aah56
SHA256 7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a
MD5 39152c6e7646d3755b388d3e5676c491
SHA1 d649bc114f8887c4502790b038926692cf43f3ee
SHA512 8d867ab5ef94f0732d4f4b94d53d9e5493f0884800ce1f9ca522ee8b0c03bc68aa7035dcf2de453b7a56ffdad410a895404f0803a00c888daa1a21987e65a686
SSDEEP 98304:ZlPNnLMcliXgk6mZUGEiVLqbbhuqLV4AlEjP7a:ZlP9LMc0wkDbEiV0LVIG
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 19 IoCs

resource	yara_rule
behavioral2/memory/1480-2-0x00000000052F0000-0x0000000005BDB000-memory.dmp	family_glupteba
behavioral2/memory/1480-3-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1480-51-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1480-53-0x00000000052F0000-0x0000000005BDB000-memory.dmp	family_glupteba
behavioral2/memory/976-55-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/976-101-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/976-117-0x0000000003590000-0x0000000003995000-memory.dmp	family_glupteba
behavioral2/memory/976-148-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-182-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-247-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-256-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-258-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-260-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-262-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-264-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-266-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-268-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-270-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral2/memory/1504-272-0x0000000000400000-0x000000000300B000-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
3868	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
1504	csrss.exe
2792	injector.exe
4568	windefender.exe
2036	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9e5-250.dat	upx
behavioral2/memory/4568-254-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2036-257-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2036-261-0x0000000000400000-0x00000000008DF000-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-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\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	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
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	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe

Launches sc.exe 1 IoCs

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

pid	Process
2732	sc.exe

Program crash 6 IoCs

pid	pid_target	Process	procid_target
2912	1480	WerFault.exe	77
4148	1480	WerFault.exe	77
2820	1480	WerFault.exe	77
2252	976	WerFault.exe	86
4656	976	WerFault.exe	86
2548	976	WerFault.exe	86

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
2684	schtasks.exe
3908	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.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,-1971 = "Belarus Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.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,-162 = "Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.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\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.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\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.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"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.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\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1100	powershell.exe
1100	powershell.exe
1480	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
1480	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
2076	powershell.exe
2076	powershell.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
1188	powershell.exe
1188	powershell.exe
2448	powershell.exe
2448	powershell.exe
3496	powershell.exe
3496	powershell.exe
568	powershell.exe
568	powershell.exe
4476	powershell.exe
4476	powershell.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
1504	csrss.exe
1504	csrss.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
1504	csrss.exe
1504	csrss.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
1504	csrss.exe
1504	csrss.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe
2792	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1100	powershell.exe
Token: SeDebugPrivilege	1480	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Token: SeImpersonatePrivilege	1480	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
Token: SeDebugPrivilege	2076	powershell.exe
Token: SeDebugPrivilege	1188	powershell.exe
Token: SeDebugPrivilege	2448	powershell.exe
Token: SeDebugPrivilege	3496	powershell.exe
Token: SeDebugPrivilege	568	powershell.exe
Token: SeDebugPrivilege	4476	powershell.exe
Token: SeSystemEnvironmentPrivilege	1504	csrss.exe
Token: SeSecurityPrivilege	2732	sc.exe
Token: SeSecurityPrivilege	2732	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 1100	1480	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	82
PID 1480 wrote to memory of 1100	1480	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	82
PID 1480 wrote to memory of 1100	1480	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	82
PID 976 wrote to memory of 2076	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	94
PID 976 wrote to memory of 2076	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	94
PID 976 wrote to memory of 2076	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	94
PID 976 wrote to memory of 2976	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	96
PID 976 wrote to memory of 2976	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	96
PID 2976 wrote to memory of 3868	2976	cmd.exe	98
PID 2976 wrote to memory of 3868	2976	cmd.exe	98
PID 976 wrote to memory of 1188	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	99
PID 976 wrote to memory of 1188	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	99
PID 976 wrote to memory of 1188	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	99
PID 976 wrote to memory of 2448	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	101
PID 976 wrote to memory of 2448	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	101
PID 976 wrote to memory of 2448	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	101
PID 976 wrote to memory of 1504	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	103
PID 976 wrote to memory of 1504	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	103
PID 976 wrote to memory of 1504	976	7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe	103
PID 1504 wrote to memory of 3496	1504	csrss.exe	110
PID 1504 wrote to memory of 3496	1504	csrss.exe	110
PID 1504 wrote to memory of 3496	1504	csrss.exe	110
PID 1504 wrote to memory of 568	1504	csrss.exe	115
PID 1504 wrote to memory of 568	1504	csrss.exe	115
PID 1504 wrote to memory of 568	1504	csrss.exe	115
PID 1504 wrote to memory of 4476	1504	csrss.exe	118
PID 1504 wrote to memory of 4476	1504	csrss.exe	118
PID 1504 wrote to memory of 4476	1504	csrss.exe	118
PID 1504 wrote to memory of 2792	1504	csrss.exe	120
PID 1504 wrote to memory of 2792	1504	csrss.exe	120
PID 4568 wrote to memory of 540	4568	windefender.exe	126
PID 4568 wrote to memory of 540	4568	windefender.exe	126
PID 4568 wrote to memory of 540	4568	windefender.exe	126
PID 540 wrote to memory of 2732	540	cmd.exe	127
PID 540 wrote to memory of 2732	540	cmd.exe	127
PID 540 wrote to memory of 2732	540	cmd.exe	127

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\7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
"C:\Users\Admin\AppData\Local\Temp\7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1100
- C:\Users\Admin\AppData\Local\Temp\7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.exe
  "C:\Users\Admin\AppData\Local\Temp\7db9da1f04e9ff62f8bb0aebca5160da119d956480ff3f097fd0e2f8709f312a.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:976
- - 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:2076
- - 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:2976
  - - 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:3868
- - 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:1188
- - 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:2448
- - 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:1504
  - - 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:3496
  - - 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:2684
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:584
  - - 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:568
  - - 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:4476
  - - 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:2792
  - - 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:3908
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:4568
    - - 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:540
      - 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:2732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 612
    3⤵
    - Program crash
    PID:2252
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 616
    3⤵
    - Program crash
    PID:4656
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 724
    3⤵
    - Program crash
    PID:2548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1480 -s 820
  2⤵
  - Program crash
  PID:2912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1480 -s 844
  2⤵
  - Program crash
  PID:4148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1480 -s 656
  2⤵
  - Program crash
  PID:2820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1480 -ip 1480
1⤵
PID:8

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1480 -ip 1480
1⤵
PID:4056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 1480 -ip 1480
1⤵
PID:2256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 400 -p 976 -ip 976
1⤵
PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 976 -ip 976
1⤵
PID:2864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 976 -ip 976
1⤵
PID:4212

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2036

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_l04ckrob.vps.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l04ckrob.vps.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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