glupteba | 9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
25/04/2024, 14:29

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General

Target
9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Size 4.2MB
Sample240425-rt2mbabf74
SHA256 9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5
MD5 74e02bf52ba54eaf223ab5c21be6bf87
SHA1 c96865a7115d02bb03333c23a4438bc6eaa82fbd
SHA512 079e3492f91717fe142ebd1f575a366e7f6249f9bcb603c6b6a7c86706a917987d853ccf854bf5a07bf16d525e276ef1c0fdb8f286e6f044324948ef123231ff
SSDEEP 98304:fmURKl+8qDh3QmhY8p8MY+25NVfxUUYlu5WDiAz7Lb7t:fmUk+8qDFQ58eH+6NVfEE4tb7t
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 18 IoCs

resource	yara_rule
behavioral1/memory/4844-2-0x00000000052B0000-0x0000000005B9B000-memory.dmp	family_glupteba
behavioral1/memory/4844-3-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/4844-54-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/4844-55-0x00000000052B0000-0x0000000005B9B000-memory.dmp	family_glupteba
behavioral1/memory/4116-57-0x0000000005240000-0x0000000005B2B000-memory.dmp	family_glupteba
behavioral1/memory/4116-58-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/4116-106-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/4116-154-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-192-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-260-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-269-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-271-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-273-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-275-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-277-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-279-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-281-0x0000000000400000-0x000000000300B000-memory.dmp	family_glupteba
behavioral1/memory/1080-283-0x0000000000400000-0x000000000300B000-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
2444	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
1080	csrss.exe
3632	injector.exe
3512	windefender.exe
1636	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000500000001e5c3-263.dat	upx
behavioral1/memory/3512-268-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1636-270-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1636-274-0x0000000000400000-0x00000000008DF000-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-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\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\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
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	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
File created	C:\Windows\rss\csrss.exe	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.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
5028	sc.exe

Program crash 4 IoCs

pid	pid_target	Process	procid_target
1940	4844	WerFault.exe	87
3740	4844	WerFault.exe	87
1056	4116	WerFault.exe	97
4756	4116	WerFault.exe	97

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
2996	schtasks.exe
2444	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\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.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\CA\Certificates	powershell.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,-104 = "Central Brazilian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time"	windefender.exe
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\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.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,-911 = "Mauritius Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	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\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,-651 = "AUS Central Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.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\26\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4392	powershell.exe
4392	powershell.exe
4844	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4844	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
2708	powershell.exe
2708	powershell.exe
2708	powershell.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
4476	powershell.exe
4476	powershell.exe
4476	powershell.exe
900	powershell.exe
900	powershell.exe
900	powershell.exe
3720	powershell.exe
3720	powershell.exe
3720	powershell.exe
3992	powershell.exe
3992	powershell.exe
3992	powershell.exe
632	powershell.exe
632	powershell.exe
632	powershell.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
1080	csrss.exe
1080	csrss.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
1080	csrss.exe
1080	csrss.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
1080	csrss.exe
1080	csrss.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe
3632	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	powershell.exe
Token: SeDebugPrivilege	4844	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Token: SeImpersonatePrivilege	4844	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
Token: SeDebugPrivilege	2708	powershell.exe
Token: SeDebugPrivilege	4476	powershell.exe
Token: SeDebugPrivilege	900	powershell.exe
Token: SeDebugPrivilege	3720	powershell.exe
Token: SeDebugPrivilege	3992	powershell.exe
Token: SeDebugPrivilege	632	powershell.exe
Token: SeSystemEnvironmentPrivilege	1080	csrss.exe
Token: SeSecurityPrivilege	5028	sc.exe
Token: SeSecurityPrivilege	5028	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 4392	4844	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	90
PID 4844 wrote to memory of 4392	4844	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	90
PID 4844 wrote to memory of 4392	4844	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	90
PID 4116 wrote to memory of 2708	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	110
PID 4116 wrote to memory of 2708	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	110
PID 4116 wrote to memory of 2708	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	110
PID 4116 wrote to memory of 968	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	112
PID 4116 wrote to memory of 968	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	112
PID 968 wrote to memory of 2444	968	cmd.exe	114
PID 968 wrote to memory of 2444	968	cmd.exe	114
PID 4116 wrote to memory of 4476	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	115
PID 4116 wrote to memory of 4476	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	115
PID 4116 wrote to memory of 4476	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	115
PID 4116 wrote to memory of 900	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	117
PID 4116 wrote to memory of 900	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	117
PID 4116 wrote to memory of 900	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	117
PID 4116 wrote to memory of 1080	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	120
PID 4116 wrote to memory of 1080	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	120
PID 4116 wrote to memory of 1080	4116	9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe	120
PID 1080 wrote to memory of 3720	1080	csrss.exe	127
PID 1080 wrote to memory of 3720	1080	csrss.exe	127
PID 1080 wrote to memory of 3720	1080	csrss.exe	127
PID 1080 wrote to memory of 3992	1080	csrss.exe	132
PID 1080 wrote to memory of 3992	1080	csrss.exe	132
PID 1080 wrote to memory of 3992	1080	csrss.exe	132
PID 1080 wrote to memory of 632	1080	csrss.exe	135
PID 1080 wrote to memory of 632	1080	csrss.exe	135
PID 1080 wrote to memory of 632	1080	csrss.exe	135
PID 1080 wrote to memory of 3632	1080	csrss.exe	137
PID 1080 wrote to memory of 3632	1080	csrss.exe	137
PID 3512 wrote to memory of 224	3512	windefender.exe	145
PID 3512 wrote to memory of 224	3512	windefender.exe	145
PID 3512 wrote to memory of 224	3512	windefender.exe	145
PID 224 wrote to memory of 5028	224	cmd.exe	146
PID 224 wrote to memory of 5028	224	cmd.exe	146
PID 224 wrote to memory of 5028	224	cmd.exe	146

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\9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
"C:\Users\Admin\AppData\Local\Temp\9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4392
- C:\Users\Admin\AppData\Local\Temp\9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.exe
  "C:\Users\Admin\AppData\Local\Temp\9a3b62acbd4a9490755a7f6351bf749725b58d378a152e17ca563da58f79e4a5.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:4116
- - 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:2708
- - 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:968
  - - 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:2444
- - 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:4476
- - 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:900
- - 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:1080
  - - 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:3720
  - - 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:2996
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3412
  - - 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:3992
  - - 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:632
  - - 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:3632
  - - 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:2444
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3512
    - - 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:224
      - 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:5028
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 828
    3⤵
    - Program crash
    PID:1056
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 768
    3⤵
    - Program crash
    PID:4756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 628
  2⤵
  - Program crash
  PID:1940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 820
  2⤵
  - Program crash
  PID:3740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4844 -ip 4844
1⤵
PID:1696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4844 -ip 4844
1⤵
PID:1832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4116 -ip 4116
1⤵
PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4116 -ip 4116
1⤵
PID:828

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1636

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_32l2oj5v.pgh.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_32l2oj5v.pgh.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 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

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