glupteba | 8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9

Analysis

max time kernel
155s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
12/11/2023, 21:05

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General

Target

8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Size

4.1MB
MD5

40ec068d634041e8b5147b6f53660280
SHA1

91bef547550e7c170acfbdc82b3eb697d9edcf6b
SHA256

8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9
SHA512

1531017f49693138e6973b3561ceae0dfcdfe5ec1f73df96028720fb888eb7ad3133490927f73e5dc772bd488a80001095ee0f41287e4104cad3c282bdb39031
SSDEEP

98304:t+y11xVaNS4L/TrpL65fuCbh9zp4wSpOL2zCwTSYgUegPrjqR:tXbVaNSc/pL68Wh9t71C3xbeerg

Score

10^/10

glupteba discovery dropper evasion loader persistence

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
behavioral1/memory/2796-2-0x0000000002F60000-0x000000000384B000-memory.dmp	family_glupteba
behavioral1/memory/2796-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2796-4-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2796-8-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2796-12-0x0000000002F60000-0x000000000384B000-memory.dmp	family_glupteba
behavioral1/memory/2796-37-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2796-56-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2796-66-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2968-68-0x0000000002AB0000-0x0000000002EB2000-memory.dmp	family_glupteba
behavioral1/memory/2968-69-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2968-70-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2968-104-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2968-111-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2968-134-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/2968-168-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/4440-173-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral1/memory/4440-236-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
4012	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
4440	csrss.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.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

Drops file in System32 directory 5 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

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	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
File created	C:\Windows\rss\csrss.exe	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
1628	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
3896	powershell.exe
3896	powershell.exe
3896	powershell.exe
2796	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2796	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
1180	powershell.exe
1180	powershell.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
2064	powershell.exe
2064	powershell.exe
1132	powershell.exe
1132	powershell.exe
3896	powershell.exe
3896	powershell.exe
3352	powershell.exe
3352	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3896	powershell.exe
Token: SeDebugPrivilege	2796	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Token: SeImpersonatePrivilege	2796	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
Token: SeDebugPrivilege	1180	powershell.exe
Token: SeDebugPrivilege	2064	powershell.exe
Token: SeDebugPrivilege	1132	powershell.exe
Token: SeDebugPrivilege	3896	powershell.exe
Token: SeDebugPrivilege	3352	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 3896	2796	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	94
PID 2796 wrote to memory of 3896	2796	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	94
PID 2796 wrote to memory of 3896	2796	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	94
PID 2968 wrote to memory of 1180	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	109
PID 2968 wrote to memory of 1180	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	109
PID 2968 wrote to memory of 1180	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	109
PID 2968 wrote to memory of 2836	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	111
PID 2968 wrote to memory of 2836	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	111
PID 2836 wrote to memory of 4012	2836	cmd.exe	113
PID 2836 wrote to memory of 4012	2836	cmd.exe	113
PID 2968 wrote to memory of 2064	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	114
PID 2968 wrote to memory of 2064	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	114
PID 2968 wrote to memory of 2064	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	114
PID 2968 wrote to memory of 1132	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	116
PID 2968 wrote to memory of 1132	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	116
PID 2968 wrote to memory of 1132	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	116
PID 2968 wrote to memory of 4440	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	118
PID 2968 wrote to memory of 4440	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	118
PID 2968 wrote to memory of 4440	2968	8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe	118
PID 4440 wrote to memory of 3896	4440	csrss.exe	119
PID 4440 wrote to memory of 3896	4440	csrss.exe	119
PID 4440 wrote to memory of 3896	4440	csrss.exe	119
PID 4440 wrote to memory of 3352	4440	csrss.exe	123
PID 4440 wrote to memory of 3352	4440	csrss.exe	123
PID 4440 wrote to memory of 3352	4440	csrss.exe	123

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\8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
"C:\Users\Admin\AppData\Local\Temp\8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3896
- C:\Users\Admin\AppData\Local\Temp\8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.exe
  "C:\Users\Admin\AppData\Local\Temp\8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9.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:2968
- - 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:1180
- - 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:2836
  - - 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:4012
- - 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: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:1132
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4440
  - - 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:3896
  - - 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:1628
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1876
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3352
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      PID:3472

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

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xklyebds.swo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
ba954d997a86271070f480faff51adcb

SHA1
29641fdf3c219a1e2c2bb329c575656ca21a270e

SHA256
767c3f58577c9627af32646a8812e5381a4e46906cd2305801e5c1139660d7c5

SHA512
634fbcb98e08ef38faf0bae7f711fe4235603d366f45ea9a916915c63efe18c4d97183e7a30d0f63978f0f3f400f2dddd9a1beb17a2483f3a476d0c28ce5b8ae

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
7319f864e60ec9d248026dba2f065b42

SHA1
71984e3593fbc4e68ecea43310568f5fa976b77e

SHA256
783d211b0437ac6fe85a7c4f3dc83b7374d55a8e653a1932b8fe79f56125fa30

SHA512
a7617432d9fa3c284a30ff463f00c8c606d5258f3363a51d97905baa972a6f17fb801acfd9ae56b93c8613fbdf861dda054d2cf695eff5c071d37fb8c37b92e6

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
a6b9d97e9d86b2f5864add0b0329e0b0

SHA1
90586f15129c00dad682475141a85442b59c31f1

SHA256
657d06ac109478a8503465802a8fa73e79a70472ff2bdc6462bd091aed7622f1

SHA512
8ad8bc4dfa309fe1bfea48af4b85e98ab91de5e4b53a24ba0b826fd2f357a3855c83737873a0e81951c3a1773ffa1c554de86a491985b0b23e70dc55e1cb21e9

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
a01068f51ef8eb3816264bc92d1c35d7

SHA1
d5dfc47dc8efe9b229aa462acb4940b8da6e06df

SHA256
5063e1d1a2d02e2d77c64accaf274cdbdb3bab798241b32b98a04a4d970cc24f

SHA512
9986256ba65eaf1a81e017afc493fa01221e69f4e2b02b2c01d05dd1662a2eb5cec91eadae5637edf8a98abfeab0db0bf6fa509d8a2051b461b023ef1eafa397

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
19KB

MD5
df38867390dc654ee79b4a52ab806a9e

SHA1
4a7bba455ecce4f6e981049b5c6e4277a1619de7

SHA256
b675e1d6b33cc58f9963905ba89396510cfedb578af7dc4a24d7da080cab9070

SHA512
80745ea1a3e94422aa12c9c8c479f7d761c447976b04801d2222ad1c6d8175814f7f987b03df9a82fccc553dad7bb1ae3c2fb709acb83d2d04c1277f23532b70

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.1MB

MD5
40ec068d634041e8b5147b6f53660280

SHA1
91bef547550e7c170acfbdc82b3eb697d9edcf6b

SHA256
8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9

SHA512
1531017f49693138e6973b3561ceae0dfcdfe5ec1f73df96028720fb888eb7ad3133490927f73e5dc772bd488a80001095ee0f41287e4104cad3c282bdb39031

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.1MB

MD5
40ec068d634041e8b5147b6f53660280

SHA1
91bef547550e7c170acfbdc82b3eb697d9edcf6b

SHA256
8134b0333c22f064b6110fccc801f45f43e4288a41c5c24d3a8e494f3023f0b9

SHA512
1531017f49693138e6973b3561ceae0dfcdfe5ec1f73df96028720fb888eb7ad3133490927f73e5dc772bd488a80001095ee0f41287e4104cad3c282bdb39031

Download Submit
memory/1132-149-0x0000000005B50000-0x0000000005EA4000-memory.dmp

Filesize
3.3MB

Download
memory/1132-137-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/1132-138-0x0000000002CF0000-0x0000000002D00000-memory.dmp

Filesize
64KB

Download
memory/1180-85-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/1180-79-0x0000000005E90000-0x00000000061E4000-memory.dmp

Filesize
3.3MB

Download
memory/1180-72-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/1180-71-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/1180-103-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/1180-73-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/1180-86-0x000000007F9A0000-0x000000007F9B0000-memory.dmp

Filesize
64KB

Download
memory/1180-87-0x0000000070680000-0x00000000706CC000-memory.dmp

Filesize
304KB

Download
memory/1180-88-0x0000000070DE0000-0x0000000071134000-memory.dmp

Filesize
3.3MB

Download
memory/1180-98-0x0000000007510000-0x00000000075B3000-memory.dmp

Filesize
652KB

Download
memory/1180-99-0x0000000007A10000-0x0000000007A21000-memory.dmp

Filesize
68KB

Download
memory/1180-100-0x0000000007A80000-0x0000000007A94000-memory.dmp

Filesize
80KB

Download
memory/2064-136-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/2064-122-0x00000000045D0000-0x00000000045E0000-memory.dmp

Filesize
64KB

Download
memory/2064-124-0x0000000070DE0000-0x0000000071134000-memory.dmp

Filesize
3.3MB

Download
memory/2064-109-0x00000000045D0000-0x00000000045E0000-memory.dmp

Filesize
64KB

Download
memory/2064-110-0x00000000045D0000-0x00000000045E0000-memory.dmp

Filesize
64KB

Download
memory/2064-108-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/2064-123-0x0000000070680000-0x00000000706CC000-memory.dmp

Filesize
304KB

Download
memory/2796-66-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2796-4-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2796-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2796-11-0x0000000002B50000-0x0000000002F54000-memory.dmp

Filesize
4.0MB

Download
memory/2796-56-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2796-2-0x0000000002F60000-0x000000000384B000-memory.dmp

Filesize
8.9MB

Download
memory/2796-1-0x0000000002B50000-0x0000000002F54000-memory.dmp

Filesize
4.0MB

Download
memory/2796-12-0x0000000002F60000-0x000000000384B000-memory.dmp

Filesize
8.9MB

Download
memory/2796-37-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2796-8-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2968-168-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2968-104-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2968-134-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2968-68-0x0000000002AB0000-0x0000000002EB2000-memory.dmp

Filesize
4.0MB

Download
memory/2968-69-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2968-70-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2968-111-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/2968-105-0x0000000002AB0000-0x0000000002EB2000-memory.dmp

Filesize
4.0MB

Download
memory/3896-32-0x0000000006970000-0x00000000069BC000-memory.dmp

Filesize
304KB

Download
memory/3896-36-0x0000000007BA0000-0x0000000007C16000-memory.dmp

Filesize
472KB

Download
memory/3896-62-0x0000000001210000-0x0000000001218000-memory.dmp

Filesize
32KB

Download
memory/3896-61-0x0000000001220000-0x000000000123A000-memory.dmp

Filesize
104KB

Download
memory/3896-60-0x0000000008040000-0x0000000008054000-memory.dmp

Filesize
80KB

Download
memory/3896-59-0x0000000008020000-0x000000000802E000-memory.dmp

Filesize
56KB

Download
memory/3896-58-0x0000000007FE0000-0x0000000007FF1000-memory.dmp

Filesize
68KB

Download
memory/3896-57-0x00000000080E0000-0x0000000008176000-memory.dmp

Filesize
600KB

Download
memory/3896-55-0x0000000007FD0000-0x0000000007FDA000-memory.dmp

Filesize
40KB

Download
memory/3896-54-0x0000000007E50000-0x0000000007EF3000-memory.dmp

Filesize
652KB

Download
memory/3896-53-0x0000000007DF0000-0x0000000007E0E000-memory.dmp

Filesize
120KB

Download
memory/3896-43-0x0000000070800000-0x0000000070B54000-memory.dmp

Filesize
3.3MB

Download
memory/3896-42-0x0000000070680000-0x00000000706CC000-memory.dmp

Filesize
304KB

Download
memory/3896-41-0x0000000007E10000-0x0000000007E42000-memory.dmp

Filesize
200KB

Download
memory/3896-40-0x000000007F5D0000-0x000000007F5E0000-memory.dmp

Filesize
64KB

Download
memory/3896-39-0x0000000007C40000-0x0000000007C5A000-memory.dmp

Filesize
104KB

Download
memory/3896-38-0x00000000082A0000-0x000000000891A000-memory.dmp

Filesize
6.5MB

Download
memory/3896-65-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3896-35-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/3896-34-0x0000000006E90000-0x0000000006ED4000-memory.dmp

Filesize
272KB

Download
memory/3896-31-0x0000000006870000-0x000000000688E000-memory.dmp

Filesize
120KB

Download
memory/3896-30-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/3896-29-0x00000000063B0000-0x0000000006704000-memory.dmp

Filesize
3.3MB

Download
memory/3896-24-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/3896-18-0x0000000006040000-0x00000000060A6000-memory.dmp

Filesize
408KB

Download
memory/3896-17-0x0000000005FD0000-0x0000000006036000-memory.dmp

Filesize
408KB

Download
memory/3896-16-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3896-14-0x00000000058B0000-0x00000000058D2000-memory.dmp

Filesize
136KB

Download
memory/3896-10-0x0000000005930000-0x0000000005F58000-memory.dmp

Filesize
6.2MB

Download
memory/3896-9-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/3896-5-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3896-7-0x00000000052C0000-0x00000000052F6000-memory.dmp

Filesize
216KB

Download
memory/3896-6-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/4440-236-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download
memory/4440-173-0x0000000000400000-0x0000000000D1C000-memory.dmp

Filesize
9.1MB

Download