glupteba | 3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd

Analysis

max time kernel
150s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
20/04/2024, 08:18

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General

Target
3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Size 4.2MB
Sample240420-j6958acd27
SHA256 3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd
MD5 5f2487ded6768e0d2869e6825a7d9e4f
SHA1 112b2535a6e692cfa867dc932443c3b6f580280f
SHA512 1a941898b9421bd879c4e75b9073768fa02b02abd68138c7d7665b043d6ef201a0d5130ef03f81e3989f69dae40767652149b7e1665cd518a7cc656bdd624865
SSDEEP 98304:iS8Tc81AzKVcNOUNHF6RiNP154spKvDdhObEo7QvVY0ryRAf1Tp7ORv:TEcJzF4UNHqA/dsmoVS4YAf19s
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 20 IoCs

resource	yara_rule
behavioral2/memory/3856-2-0x0000000004210000-0x0000000004AFB000-memory.dmp	family_glupteba
behavioral2/memory/3856-3-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/1644-53-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3856-54-0x0000000004210000-0x0000000004AFB000-memory.dmp	family_glupteba
behavioral2/memory/3856-69-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/1644-129-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/1644-188-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-238-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-248-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-252-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-256-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-260-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-264-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-268-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-272-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-276-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-280-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-284-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-288-0x0000000000400000-0x0000000001E06000-memory.dmp	family_glupteba
behavioral2/memory/3300-292-0x0000000000400000-0x0000000001E06000-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
2064	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
3300	csrss.exe
3768	injector.exe
2456	windefender.exe
1332	windefender.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9be-242.dat	upx
behavioral2/memory/2456-246-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1332-250-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1332-258-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/1332-262-0x0000000000400000-0x00000000008DF000-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-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File 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

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	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\rss	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe

Launches sc.exe 1 IoCs

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

pid	Process
660	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
420	schtasks.exe
1548	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\UNCAsIntranet = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.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\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.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\26\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time"	windefender.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,-651 = "AUS Central Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2736	powershell.exe
2736	powershell.exe
3856	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
3856	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
4460	powershell.exe
4460	powershell.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
4980	powershell.exe
4980	powershell.exe
440	powershell.exe
440	powershell.exe
2212	powershell.exe
2212	powershell.exe
2332	powershell.exe
2332	powershell.exe
1860	powershell.exe
1860	powershell.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3300	csrss.exe
3300	csrss.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3300	csrss.exe
3300	csrss.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3300	csrss.exe
3300	csrss.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe
3768	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	3856	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Token: SeImpersonatePrivilege	3856	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	4980	powershell.exe
Token: SeDebugPrivilege	440	powershell.exe
Token: SeDebugPrivilege	2212	powershell.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	1860	powershell.exe
Token: SeSystemEnvironmentPrivilege	3300	csrss.exe
Token: SeSecurityPrivilege	660	sc.exe
Token: SeSecurityPrivilege	660	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3856 wrote to memory of 2736	3856	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	78
PID 3856 wrote to memory of 2736	3856	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	78
PID 3856 wrote to memory of 2736	3856	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	78
PID 1644 wrote to memory of 4460	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	83
PID 1644 wrote to memory of 4460	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	83
PID 1644 wrote to memory of 4460	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	83
PID 1644 wrote to memory of 2948	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	85
PID 1644 wrote to memory of 2948	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	85
PID 2948 wrote to memory of 2064	2948	cmd.exe	87
PID 2948 wrote to memory of 2064	2948	cmd.exe	87
PID 1644 wrote to memory of 4980	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	88
PID 1644 wrote to memory of 4980	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	88
PID 1644 wrote to memory of 4980	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	88
PID 1644 wrote to memory of 440	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	90
PID 1644 wrote to memory of 440	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	90
PID 1644 wrote to memory of 440	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	90
PID 1644 wrote to memory of 3300	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	92
PID 1644 wrote to memory of 3300	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	92
PID 1644 wrote to memory of 3300	1644	3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe	92
PID 3300 wrote to memory of 2212	3300	csrss.exe	93
PID 3300 wrote to memory of 2212	3300	csrss.exe	93
PID 3300 wrote to memory of 2212	3300	csrss.exe	93
PID 3300 wrote to memory of 2332	3300	csrss.exe	99
PID 3300 wrote to memory of 2332	3300	csrss.exe	99
PID 3300 wrote to memory of 2332	3300	csrss.exe	99
PID 3300 wrote to memory of 1860	3300	csrss.exe	101
PID 3300 wrote to memory of 1860	3300	csrss.exe	101
PID 3300 wrote to memory of 1860	3300	csrss.exe	101
PID 3300 wrote to memory of 3768	3300	csrss.exe	103
PID 3300 wrote to memory of 3768	3300	csrss.exe	103
PID 2456 wrote to memory of 4476	2456	windefender.exe	109
PID 2456 wrote to memory of 4476	2456	windefender.exe	109
PID 2456 wrote to memory of 4476	2456	windefender.exe	109
PID 4476 wrote to memory of 660	4476	cmd.exe	110
PID 4476 wrote to memory of 660	4476	cmd.exe	110
PID 4476 wrote to memory of 660	4476	cmd.exe	110

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\3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
"C:\Users\Admin\AppData\Local\Temp\3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.exe
  "C:\Users\Admin\AppData\Local\Temp\3dca82e08a7b86c5d3de1ea212b7d01cbe6ac61ff29c893c97bf3ee12ee6ddbd.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:1644
- - 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:4460
- - 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:2948
  - - 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:2064
- - 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:4980
- - 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:440
- - 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:3300
  - - 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:2212
  - - 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:420
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4848
  - - 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:2332
  - - 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:1860
  - - 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:3768
  - - 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:1548
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2456
    - - 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:4476
      - 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:660

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1332

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_fr2hkhhx.p4s.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fr2hkhhx.p4s.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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injector.exe

Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Size 281KB
SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
MD5 d98e33b66343e7c96158444127a117f6
SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
MD5 SHA1 SHA512 SSDEEP

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
MD5 d0c46cad6c0778401e21910bd6b56b70
SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
MD5 SHA1 SHA512

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