fc70e0137038e045ba017efda797c6a5fcab019a3082dbeb794defe77a9bab74

Analysis

max time kernel
4265072s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
17/01/2022, 23:12

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
22331b359206136eb75436f7f261ed80.dll
Size 479KB
Sample220117-26v1eadfe6
SHA256 fc70e0137038e045ba017efda797c6a5fcab019a3082dbeb794defe77a9bab74
MD5 22331b359206136eb75436f7f261ed80
SHA1 ae3781e875668587c0e6099305469f395d5d8fee
SHA512 9355c756128638ed93bdd158942dfec9b640c60c1755ca6a4ac79343f5522ae818d3fb812eb6fea12d42d4140fe42e23f55d5daea5a3f6cade8dab742519c35f
MD5 SHA1 SHA512

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotification.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotification.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3396	MusNotification.exe
Token: SeCreatePagefilePrivilege	3396	MusNotification.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 3828	2696	regsvr32.exe	54
PID 2696 wrote to memory of 3828	2696	regsvr32.exe	54
PID 2696 wrote to memory of 3828	2696	regsvr32.exe	54
PID 3828 wrote to memory of 632	3828	regsvr32.exe	55
PID 3828 wrote to memory of 632	3828	regsvr32.exe	55
PID 3828 wrote to memory of 632	3828	regsvr32.exe	55

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\22331b359206136eb75436f7f261ed80.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\22331b359206136eb75436f7f261ed80.dll
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3828
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\22331b359206136eb75436f7f261ed80.dll",DllRegisterServer
    3⤵
    PID:632

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:3396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3828-135-0x0000000004B55000-0x0000000004B56000-memory.dmp

Download

memory/3828-134-0x0000000004B31000-0x0000000004B55000-memory.dmp