851a0dfe45fe5122a4072e0765540aa29a5eb0fd68dde5743ce94ec1906c1fbb

Analysis

max time kernel
4265058s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
17/01/2022, 11:10

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General

Target
275b6518b6bd3c7b160ae3f42be12bf1.dll
Size 472KB
Sample220117-m9p61aaacl
SHA256 851a0dfe45fe5122a4072e0765540aa29a5eb0fd68dde5743ce94ec1906c1fbb
MD5 275b6518b6bd3c7b160ae3f42be12bf1
SHA1 6d22c8ea3664a82cab791a3317748f4529f06b40
SHA512 3a9db9407f2dbd86ea5081757d18b3742de5b2c28cdd945a2e9039ff3054bdb148d14696ad16c88e1e3df3d123b30de9dea08f1d592165923e8624bb9b0514d5
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	3616	MusNotification.exe
Token: SeCreatePagefilePrivilege	3616	MusNotification.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 3384	3440	regsvr32.exe	53
PID 3440 wrote to memory of 3384	3440	regsvr32.exe	53
PID 3440 wrote to memory of 3384	3440	regsvr32.exe	53
PID 3384 wrote to memory of 536	3384	regsvr32.exe	54
PID 3384 wrote to memory of 536	3384	regsvr32.exe	54
PID 3384 wrote to memory of 536	3384	regsvr32.exe	54

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\275b6518b6bd3c7b160ae3f42be12bf1.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\275b6518b6bd3c7b160ae3f42be12bf1.dll
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3384
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\275b6518b6bd3c7b160ae3f42be12bf1.dll",DllRegisterServer
    3⤵
    PID:536

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:3616

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/3384-132-0x0000000004EC5000-0x0000000004EC6000-memory.dmp

Download

memory/3384-131-0x0000000004EA1000-0x0000000004EC5000-memory.dmp