941c88049e60d335b5f2ff022bdfe464bb8cd7c377258b231de28c075a373c7e

Analysis

max time kernel
4265058s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
17/01/2022, 09:29

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General

Target
WeB7.dll
Size 472KB
Sample220117-lfw7sahcb5
SHA256 941c88049e60d335b5f2ff022bdfe464bb8cd7c377258b231de28c075a373c7e
MD5 b27f10f04fcebb9bfe49368f1e16fea5
SHA1 b50faf683747cfb5bcbb58819f4d0e518aee5c26
SHA512 cadf11da443aa45c00ff59f911ccc1a8ea40061ffc68bc39674b077cd3b37ea0b7b49e90932d274b8e6c0a9b2f3f8dab95a551a95dacc569b7942fbad9999ac3
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	2484	MusNotification.exe
Token: SeCreatePagefilePrivilege	2484	MusNotification.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 776 wrote to memory of 1816	776	regsvr32.exe	54
PID 776 wrote to memory of 1816	776	regsvr32.exe	54
PID 776 wrote to memory of 1816	776	regsvr32.exe	54
PID 1816 wrote to memory of 1976	1816	regsvr32.exe	55
PID 1816 wrote to memory of 1976	1816	regsvr32.exe	55
PID 1816 wrote to memory of 1976	1816	regsvr32.exe	55

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\WeB7.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\WeB7.dll
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\WeB7.dll",DllRegisterServer
    3⤵
    PID:1976

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:2484

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

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Downloads

memory/1816-131-0x00000000043F1000-0x0000000004415000-memory.dmp

Download

memory/1816-132-0x0000000004415000-0x0000000004416000-memory.dmp