44799d1df8d40de415ebce0501a6d4b91470e364d730f16bb5be04b94d167763

General

Target

976-56-0x0000000000130000-0x000000000013A000-memory.dll
Size

40KB
MD5

534bf8c0f11fc540d7b11790351561bc
SHA1

6b9393f60d476fddd617b9ada7b151b167218993
SHA256

44799d1df8d40de415ebce0501a6d4b91470e364d730f16bb5be04b94d167763
SHA512

13803e52e4b1c2a7c85d7f0e0ce713b7db73a4a90f08e1c23316bda88863729e814e500c27e74bac82173c7ce793cd0b7bb562d58f1220fec4dbd79fcb0cf291

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 1968 created 1320 1968 WerFault.exe rundll32.exe

description	pid	process	target process
PID 1968 created 1320	1968	WerFault.exe	rundll32.exe

Drops file in Windows directory 8 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
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

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2136 1320 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2136	1320	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

2136 WerFault.exe
2136 WerFault.exe

pid	process
2136	WerFault.exe
2136	WerFault.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

svchost.exeTiWorker.exe

description	pid	process
Token: SeShutdownPrivilege	4860	svchost.exe
Token: SeCreatePagefilePrivilege	4860	svchost.exe
Token: SeShutdownPrivilege	4860	svchost.exe
Token: SeCreatePagefilePrivilege	4860	svchost.exe
Token: SeShutdownPrivilege	4860	svchost.exe
Token: SeCreatePagefilePrivilege	4860	svchost.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe
Token: SeRestorePrivilege	320	TiWorker.exe
Token: SeSecurityPrivilege	320	TiWorker.exe
Token: SeBackupPrivilege	320	TiWorker.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WerFault.exe

description	pid	process	target process
PID 1968 wrote to memory of 1320	1968	WerFault.exe	rundll32.exe
PID 1968 wrote to memory of 1320	1968	WerFault.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\976-56-0x0000000000130000-0x000000000013A000-memory.dll,#1
1⤵
PID:1320
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1320 -s 240
  2⤵
  - Program crash
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2136

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 432 -p 1320 -ip 1320
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:1968

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:4860

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:320

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/4860-130-0x00000240AC520000-0x00000240AC530000-memory.dmp

Filesize
64KB

Download
memory/4860-131-0x00000240AC580000-0x00000240AC590000-memory.dmp

Filesize
64KB

Download
memory/4860-132-0x00000240AEC30000-0x00000240AEC34000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads