glupteba | ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c

Analysis

max time kernel
149s
max time network
148s
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, 19:23

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General

Target
ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Size 4.2MB
Sample240419-x32assdc43
SHA256 ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c
MD5 d96d533aa193717e06c54716193d8b63
SHA1 1c2d63166e0495a201352d2e0f552500d623da88
SHA512 0bd94bd99a7f657b34f32dd8b72ad38005c0e1c86106889d20144177f5adfd84ce56eee9c2917c5357458d8fcb05a55148e3f909bb3953cb699c7f96d48713ca
SSDEEP 98304:btwUIgr6Tu/hivXD0fl0IvZVjhgp1+mYFjvUcmYnimsjZaHef:Jw6rquKXDtU1Y2GYniVjUHy
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/4888-2-0x0000000004260000-0x0000000004B4B000-memory.dmp	family_glupteba
behavioral2/memory/4888-3-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/1584-54-0x0000000004150000-0x0000000004A3B000-memory.dmp	family_glupteba
behavioral2/memory/4888-55-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/1584-56-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/1584-129-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/1584-149-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-246-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-255-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-257-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-259-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-261-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-263-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-265-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-267-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-269-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-271-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-273-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-275-0x0000000000400000-0x0000000001E08000-memory.dmp	family_glupteba
behavioral2/memory/2576-277-0x0000000000400000-0x0000000001E08000-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
2176	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
2576	csrss.exe
2064	injector.exe
4464	windefender.exe
5068	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9e4-250.dat	upx
behavioral2/memory/4464-254-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/5068-256-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/5068-260-0x0000000000400000-0x00000000008DF000-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\""	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.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 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	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
File created	C:\Windows\rss\csrss.exe	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.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
4756	sc.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4680	4888	WerFault.exe	76
3440	1584	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
3596	schtasks.exe
3304	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,-42 = "E. South America Standard 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\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.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\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.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,-122 = "SA Pacific Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.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"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.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,-2791 = "Novosibirsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	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\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.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,-2791 = "Novosibirsk Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time"	windefender.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,-251 = "Dateline Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.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"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	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,-2942 = "Sao Tome Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	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,-81 = "Atlantic Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4204	powershell.exe
4204	powershell.exe
4888	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
4888	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
800	powershell.exe
800	powershell.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
4324	powershell.exe
4324	powershell.exe
3572	powershell.exe
3572	powershell.exe
4312	powershell.exe
4312	powershell.exe
540	powershell.exe
540	powershell.exe
4888	powershell.exe
4888	powershell.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2576	csrss.exe
2576	csrss.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2576	csrss.exe
2576	csrss.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2576	csrss.exe
2576	csrss.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe
2064	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	4204	powershell.exe
Token: SeDebugPrivilege	4888	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Token: SeImpersonatePrivilege	4888	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
Token: SeDebugPrivilege	800	powershell.exe
Token: SeDebugPrivilege	4324	powershell.exe
Token: SeDebugPrivilege	3572	powershell.exe
Token: SeDebugPrivilege	4312	powershell.exe
Token: SeDebugPrivilege	540	powershell.exe
Token: SeDebugPrivilege	4888	powershell.exe
Token: SeSystemEnvironmentPrivilege	2576	csrss.exe
Token: SeSecurityPrivilege	4756	sc.exe
Token: SeSecurityPrivilege	4756	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 4204	4888	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	80
PID 4888 wrote to memory of 4204	4888	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	80
PID 4888 wrote to memory of 4204	4888	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	80
PID 1584 wrote to memory of 800	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	89
PID 1584 wrote to memory of 800	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	89
PID 1584 wrote to memory of 800	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	89
PID 1584 wrote to memory of 2504	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	114
PID 1584 wrote to memory of 2504	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	114
PID 2504 wrote to memory of 2176	2504	cmd.exe	93
PID 2504 wrote to memory of 2176	2504	cmd.exe	93
PID 1584 wrote to memory of 4324	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	94
PID 1584 wrote to memory of 4324	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	94
PID 1584 wrote to memory of 4324	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	94
PID 1584 wrote to memory of 3572	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	96
PID 1584 wrote to memory of 3572	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	96
PID 1584 wrote to memory of 3572	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	96
PID 1584 wrote to memory of 2576	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	98
PID 1584 wrote to memory of 2576	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	98
PID 1584 wrote to memory of 2576	1584	ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe	98
PID 2576 wrote to memory of 4312	2576	csrss.exe	101
PID 2576 wrote to memory of 4312	2576	csrss.exe	101
PID 2576 wrote to memory of 4312	2576	csrss.exe	101
PID 2576 wrote to memory of 540	2576	csrss.exe	106
PID 2576 wrote to memory of 540	2576	csrss.exe	106
PID 2576 wrote to memory of 540	2576	csrss.exe	106
PID 2576 wrote to memory of 4888	2576	csrss.exe	109
PID 2576 wrote to memory of 4888	2576	csrss.exe	109
PID 2576 wrote to memory of 4888	2576	csrss.exe	109
PID 2576 wrote to memory of 2064	2576	csrss.exe	111
PID 2576 wrote to memory of 2064	2576	csrss.exe	111
PID 4464 wrote to memory of 1576	4464	windefender.exe	117
PID 4464 wrote to memory of 1576	4464	windefender.exe	117
PID 4464 wrote to memory of 1576	4464	windefender.exe	117
PID 1576 wrote to memory of 4756	1576	cmd.exe	118
PID 1576 wrote to memory of 4756	1576	cmd.exe	118
PID 1576 wrote to memory of 4756	1576	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\ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
"C:\Users\Admin\AppData\Local\Temp\ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4204
- C:\Users\Admin\AppData\Local\Temp\ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.exe
  "C:\Users\Admin\AppData\Local\Temp\ae2183776bbcea505dc8d919ddd8c2516a6392c55f4851064a4b1b3713a89c4c.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:1584
- - 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:800
- - 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:2504
  - - 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:2176
- - 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:4324
- - 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:3572
- - 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:2576
  - - 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:4312
  - - 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:3596
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:888
  - - 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:540
  - - 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:4888
  - - 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:2064
  - - 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:3304
    - - C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        5⤵
        
        PID:2504
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:4464
    - - 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:1576
      - 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:4756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1584 -s 788
    3⤵
    - Program crash
    PID:3440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 684
  2⤵
  - Program crash
  PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4888 -ip 4888
1⤵
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1584 -ip 1584
1⤵
PID:1560

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5068

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_icltj0bn.inz.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_icltj0bn.inz.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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