bf322e978cd18eaecccc04e07230d1ca5cf62b105363720281c1663ae585521f

Analysis

max time kernel
4265117s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
17/01/2022, 22:24

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General

Target
731d74f65a0505876e8fa86b478d1a64.dll
Size 479KB
Sample220117-2bd4eadca3
SHA256 bf322e978cd18eaecccc04e07230d1ca5cf62b105363720281c1663ae585521f
MD5 731d74f65a0505876e8fa86b478d1a64
SHA1 7020842336a702d6106c399cdc15ca5f4c9f008c
SHA512 6a7586e7d8da57c0017f01d7b31edcf6f72d6c91b852bfddb2d9bd5ec772440e0c7fcd81669b6a6e7c17a7ae4a6792bf05a08c1ac6425e0e36f23b4cdca688fe
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	772	MusNotification.exe
Token: SeCreatePagefilePrivilege	772	MusNotification.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3856 wrote to memory of 3568	3856	regsvr32.exe	53
PID 3856 wrote to memory of 3568	3856	regsvr32.exe	53
PID 3856 wrote to memory of 3568	3856	regsvr32.exe	53
PID 3568 wrote to memory of 2968	3568	regsvr32.exe	56
PID 3568 wrote to memory of 2968	3568	regsvr32.exe	56
PID 3568 wrote to memory of 2968	3568	regsvr32.exe	56

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\731d74f65a0505876e8fa86b478d1a64.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\731d74f65a0505876e8fa86b478d1a64.dll
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3568
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\731d74f65a0505876e8fa86b478d1a64.dll",DllRegisterServer
    3⤵
    PID:2968

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:772

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/3568-132-0x0000000002E75000-0x0000000002E76000-memory.dmp

Download

memory/3568-131-0x0000000002E51000-0x0000000002E75000-memory.dmp