glupteba | 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501

Analysis

max time kernel
149s
max time network
126s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
19/05/2024, 14:01

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General

Target
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Size 4.1MB
Sample240519-rbslpaba64
SHA256 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501
MD5 d1d665f061f612842c5980585f7c5353
SHA1 f952aff90ffcf50edd0f0d5e5c90864a861989ce
SHA512 1ba8f127644498d96434ee55b28e2989ee06973db9463f3db5d41a0ec313f669ccd74aa8366e70626c4c02b844c1a72d77c6b6e8aba222b2d76511b4ff098c0c
SSDEEP 98304:8NaXJU8AJvaro5mDbVFqT6QhicqJuM7BOvJODhfBAiYJAl59Wu:8qU8A9EamDpImBOY9f2Nu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution 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/4472-2-0x0000000004950000-0x000000000523B000-memory.dmp	family_glupteba
behavioral2/memory/4472-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/4472-99-0x0000000004950000-0x000000000523B000-memory.dmp	family_glupteba
behavioral2/memory/4472-98-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3976-124-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/4472-147-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/3516-201-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-212-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-215-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-218-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-221-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-224-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-227-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-230-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-233-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-236-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-239-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-242-0x0000000000400000-0x000000000273B000-memory.dmp	family_glupteba
behavioral2/memory/3516-245-0x0000000000400000-0x000000000273B000-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
1540	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3516	csrss.exe
2060	injector.exe
2508	windefender.exe
2140	windefender.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x001a00000002ab2a-205.dat	upx
behavioral2/memory/2508-206-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2140-209-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2508-211-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2140-214-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2140-220-0x0000000000400000-0x00000000008DF000-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-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

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	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
File created	C:\Windows\rss\csrss.exe	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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
3060	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4892	powershell.exe
2752	powershell.exe
2260	powershell.exe
2296	powershell.exe
2324	powershell.exe
1596	powershell.exe
1352	powershell.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3256	schtasks.exe
4988	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	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\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	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\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\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\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2324	powershell.exe
2324	powershell.exe
4472	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
4472	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
1596	powershell.exe
1596	powershell.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
1352	powershell.exe
1352	powershell.exe
4892	powershell.exe
4892	powershell.exe
2752	powershell.exe
2752	powershell.exe
2260	powershell.exe
2260	powershell.exe
2296	powershell.exe
2296	powershell.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
3516	csrss.exe
3516	csrss.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
3516	csrss.exe
3516	csrss.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
3516	csrss.exe
3516	csrss.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe
2060	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2324	powershell.exe
Token: SeDebugPrivilege	4472	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Token: SeImpersonatePrivilege	4472	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Token: SeDebugPrivilege	1596	powershell.exe
Token: SeDebugPrivilege	1352	powershell.exe
Token: SeDebugPrivilege	4892	powershell.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	2296	powershell.exe
Token: SeSystemEnvironmentPrivilege	3516	csrss.exe
Token: SeSecurityPrivilege	3060	sc.exe
Token: SeSecurityPrivilege	3060	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 2324	4472	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	83
PID 4472 wrote to memory of 2324	4472	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	83
PID 4472 wrote to memory of 2324	4472	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	83
PID 3976 wrote to memory of 1596	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	88
PID 3976 wrote to memory of 1596	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	88
PID 3976 wrote to memory of 1596	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	88
PID 3976 wrote to memory of 2148	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	90
PID 3976 wrote to memory of 2148	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	90
PID 2148 wrote to memory of 1540	2148	cmd.exe	92
PID 2148 wrote to memory of 1540	2148	cmd.exe	92
PID 3976 wrote to memory of 1352	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	93
PID 3976 wrote to memory of 1352	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	93
PID 3976 wrote to memory of 1352	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	93
PID 3976 wrote to memory of 4892	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	95
PID 3976 wrote to memory of 4892	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	95
PID 3976 wrote to memory of 4892	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	95
PID 3976 wrote to memory of 3516	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	97
PID 3976 wrote to memory of 3516	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	97
PID 3976 wrote to memory of 3516	3976	8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe	97
PID 3516 wrote to memory of 2752	3516	csrss.exe	98
PID 3516 wrote to memory of 2752	3516	csrss.exe	98
PID 3516 wrote to memory of 2752	3516	csrss.exe	98
PID 3516 wrote to memory of 2260	3516	csrss.exe	104
PID 3516 wrote to memory of 2260	3516	csrss.exe	104
PID 3516 wrote to memory of 2260	3516	csrss.exe	104
PID 3516 wrote to memory of 2296	3516	csrss.exe	106
PID 3516 wrote to memory of 2296	3516	csrss.exe	106
PID 3516 wrote to memory of 2296	3516	csrss.exe	106
PID 3516 wrote to memory of 2060	3516	csrss.exe	108
PID 3516 wrote to memory of 2060	3516	csrss.exe	108
PID 2508 wrote to memory of 4256	2508	windefender.exe	114
PID 2508 wrote to memory of 4256	2508	windefender.exe	114
PID 2508 wrote to memory of 4256	2508	windefender.exe	114
PID 4256 wrote to memory of 3060	4256	cmd.exe	115
PID 4256 wrote to memory of 3060	4256	cmd.exe	115
PID 4256 wrote to memory of 3060	4256	cmd.exe	115

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\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
"C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4472
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2324
- C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
  "C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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:3976
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1596
- - 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:2148
  - - 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:1540
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1352
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4892
- - 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:3516
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2752
  - - 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:3256
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3780
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2260
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2296
  - - 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:2060
  - - 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:4988
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2508
    - - 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:4256
      - 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:3060

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_5botrtve.t0b.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5botrtve.t0b.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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