d02798629a25f74b9a5340cd3a5b1070cecbdffe04332c76c20f31357440b5fd

General

Target

d02798629a25f74b9a5340cd3a5b1070cecbdffe04332c76c20f31357440b5fd.dll
Size

156KB
MD5

f1bd39b9c385e63a373e4cfcf569cd53
SHA1

8cfc211e04f866450637a6f4c124eb44be86e86e
SHA256

d02798629a25f74b9a5340cd3a5b1070cecbdffe04332c76c20f31357440b5fd
SHA512

0c99c62bf1f35e6a2eefbcc476bcc705e5370fcc4ceb32b6aa827a993c683443b602201e85d30440abea56bbf2f193c57b58f9f89de12f4fe429a6d213a7a65d

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 2764 created 4456 2764 WerFault.exe rundll32.exe

description	pid	process	target process
PID 2764 created 4456	2764	WerFault.exe	rundll32.exe

Drops file in Windows directory 8 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4776 4456 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4776	4456	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

WerFault.exe

pid process

4776 WerFault.exe
4776 WerFault.exe

pid	process
4776	WerFault.exe
4776	WerFault.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

WerFault.exesvchost.exeTiWorker.exe

description	pid	process
Token: SeRestorePrivilege	4776	WerFault.exe
Token: SeBackupPrivilege	4776	WerFault.exe
Token: SeShutdownPrivilege	4696	svchost.exe
Token: SeCreatePagefilePrivilege	4696	svchost.exe
Token: SeShutdownPrivilege	4696	svchost.exe
Token: SeCreatePagefilePrivilege	4696	svchost.exe
Token: SeShutdownPrivilege	4696	svchost.exe
Token: SeCreatePagefilePrivilege	4696	svchost.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe
Token: SeSecurityPrivilege	1604	TiWorker.exe
Token: SeBackupPrivilege	1604	TiWorker.exe
Token: SeRestorePrivilege	1604	TiWorker.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

rundll32.exeWerFault.exe

description	pid	process	target process
PID 5056 wrote to memory of 4456	5056	rundll32.exe	rundll32.exe
PID 5056 wrote to memory of 4456	5056	rundll32.exe	rundll32.exe
PID 5056 wrote to memory of 4456	5056	rundll32.exe	rundll32.exe
PID 2764 wrote to memory of 4456	2764	WerFault.exe	rundll32.exe
PID 2764 wrote to memory of 4456	2764	WerFault.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d02798629a25f74b9a5340cd3a5b1070cecbdffe04332c76c20f31357440b5fd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d02798629a25f74b9a5340cd3a5b1070cecbdffe04332c76c20f31357440b5fd.dll,#1
  2⤵
  PID:4456
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 544
    3⤵
    - Program crash
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4456 -ip 4456
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:2764

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4696

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4696-130-0x000001E160140000-0x000001E160150000-memory.dmp

Filesize
64KB

Download
memory/4696-131-0x000001E1601A0000-0x000001E1601B0000-memory.dmp

Filesize
64KB

Download
memory/4696-132-0x000001E162EC0000-0x000001E162EC4000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads