glupteba | 33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4

Analysis

max time kernel
154s
max time network
170s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
04/04/2024, 17:30

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General

Target
33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Size 4.1MB
Sample240404-v24cnaeb94
SHA256 33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4
MD5 91fc8afa803e5cccdb8ab2166623b6f2
SHA1 b1146f11caa013d198ae0c1e3c5a0c1821f8bb36
SHA512 477d7fc603fb2b03089294c434b1b5c34f3a688b8267db22534149e4f605c2fcc7f0beb88dcc71ec054dfa37e29249c95a197026d33e06f73efecd673a2b7647
SSDEEP 98304:zH5J7CzszSbiwn7GrcYbqmT2oxXGbns7pL8WqJWTgfj:NMU4iw7Yx2bns7pLfTgfj
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 17 IoCs

resource	yara_rule
behavioral2/memory/2992-2-0x00000000052B0000-0x0000000005B9B000-memory.dmp	family_glupteba
behavioral2/memory/2992-3-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2992-8-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2992-26-0x00000000052B0000-0x0000000005B9B000-memory.dmp	family_glupteba
behavioral2/memory/2992-41-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2992-52-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2992-59-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/4248-62-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/4248-63-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/4248-91-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/4248-96-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/4248-136-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2532-141-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2532-196-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2532-206-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2532-209-0x0000000000400000-0x0000000002F43000-memory.dmp	family_glupteba
behavioral2/memory/2532-212-0x0000000000400000-0x0000000002F43000-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
2336	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
2532	csrss.exe
1804	injector.exe
3308	windefender.exe
4308	windefender.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a847-199.dat	upx
behavioral2/memory/3308-205-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/4308-208-0x0000000000400000-0x00000000008DF000-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-1-5-21-647252928-2816094679-1307623958-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-647252928-2816094679-1307623958-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.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 8 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
File created	C:\Windows\rss\csrss.exe	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.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
1564	sc.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
684	schtasks.exe
3860	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	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\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3140	powershell.exe
3140	powershell.exe
2992	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
2992	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4520	powershell.exe
4520	powershell.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
3092	powershell.exe
3092	powershell.exe
3108	powershell.exe
3108	powershell.exe
1764	powershell.exe
1764	powershell.exe
2676	powershell.exe
2676	powershell.exe
3364	powershell.exe
3364	powershell.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
2532	csrss.exe
2532	csrss.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
2532	csrss.exe
2532	csrss.exe
2532	csrss.exe
2532	csrss.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe
1804	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	3140	powershell.exe
Token: SeDebugPrivilege	2992	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Token: SeImpersonatePrivilege	2992	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
Token: SeDebugPrivilege	4520	powershell.exe
Token: SeDebugPrivilege	3092	powershell.exe
Token: SeDebugPrivilege	3108	powershell.exe
Token: SeDebugPrivilege	1764	powershell.exe
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeDebugPrivilege	3364	powershell.exe
Token: SeSystemEnvironmentPrivilege	2532	csrss.exe
Token: SeSecurityPrivilege	1564	sc.exe
Token: SeSecurityPrivilege	1564	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 3140	2992	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	81
PID 2992 wrote to memory of 3140	2992	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	81
PID 2992 wrote to memory of 3140	2992	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	81
PID 4248 wrote to memory of 4520	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	86
PID 4248 wrote to memory of 4520	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	86
PID 4248 wrote to memory of 4520	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	86
PID 4248 wrote to memory of 956	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	88
PID 4248 wrote to memory of 956	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	88
PID 956 wrote to memory of 2336	956	cmd.exe	90
PID 956 wrote to memory of 2336	956	cmd.exe	90
PID 4248 wrote to memory of 3092	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	91
PID 4248 wrote to memory of 3092	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	91
PID 4248 wrote to memory of 3092	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	91
PID 4248 wrote to memory of 3108	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	93
PID 4248 wrote to memory of 3108	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	93
PID 4248 wrote to memory of 3108	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	93
PID 4248 wrote to memory of 2532	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	95
PID 4248 wrote to memory of 2532	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	95
PID 4248 wrote to memory of 2532	4248	33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe	95
PID 2532 wrote to memory of 1764	2532	csrss.exe	96
PID 2532 wrote to memory of 1764	2532	csrss.exe	96
PID 2532 wrote to memory of 1764	2532	csrss.exe	96
PID 2532 wrote to memory of 2676	2532	csrss.exe	102
PID 2532 wrote to memory of 2676	2532	csrss.exe	102
PID 2532 wrote to memory of 2676	2532	csrss.exe	102
PID 2532 wrote to memory of 3364	2532	csrss.exe	104
PID 2532 wrote to memory of 3364	2532	csrss.exe	104
PID 2532 wrote to memory of 3364	2532	csrss.exe	104
PID 2532 wrote to memory of 1804	2532	csrss.exe	106
PID 2532 wrote to memory of 1804	2532	csrss.exe	106
PID 3308 wrote to memory of 3692	3308	windefender.exe	112
PID 3308 wrote to memory of 3692	3308	windefender.exe	112
PID 3308 wrote to memory of 3692	3308	windefender.exe	112
PID 3692 wrote to memory of 1564	3692	cmd.exe	113
PID 3692 wrote to memory of 1564	3692	cmd.exe	113
PID 3692 wrote to memory of 1564	3692	cmd.exe	113

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\33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
"C:\Users\Admin\AppData\Local\Temp\33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3140
- C:\Users\Admin\AppData\Local\Temp\33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.exe
  "C:\Users\Admin\AppData\Local\Temp\33bb838910305f091fe2d30b376e79c06debb2ddc93d61af12c7a44432002ca4.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:4248
- - 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:4520
- - 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:956
  - - 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:2336
- - 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:3092
- - 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:3108
- - 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:2532
  - - 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:1764
  - - 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:3860
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:2852
  - - 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:2676
  - - 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:3364
  - - 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:1804
  - - 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:684
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3308
    - - 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:3692
      - 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:1564

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
PID:4308

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_gom5ct4i.v0m.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gom5ct4i.v0m.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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ModuleAnalysisCache

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
Size 57KB
SHA256 00e8344cb85a4cc91522810cd8e2b8a9d9f03cbf56e367b7db35c8acd2438be1
MD5 9c4755c80d736cd8afaeda8505a456fb
SHA1 14b7cec5c93d6b2a8b629d6302fd77674183c86f
SHA512 7e1b16ba5a35e54e146ce16a762c852b7a60818454532c06afb4fbc1766cd0c64cbb0f6e5d5bb50623e42ce1a3ccb1d845ea6877de8ff17277783f97fed5a07a
SSDEEP 1536:GZ++z30nyV3CNBQkj2Qh4iUxtaVeflJnLvmqM79/eOdBrzttAHk3fKQUMnYodRWk:S++z30nyV3CNBQkj2QqiUtaVeflJnLv8
MD5 SHA1 SHA512 SSDEEP

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