b6736050938db1c2cd9ed705c9233d90e9876cea67b0d7cc4644d92ac7cb6e20

Resubmissions

27/01/2022, 11:13

220127-nbxzmabhc410

18/01/2022, 01:25

220118-bsxzqsfad51

15/01/2022, 16:15

220115-tp8wyafbej1

Analysis

max time kernel
4265010s
max time network
67s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
15/01/2022, 16:15

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General

Target
test.dll
Size 574KB
Sample220115-tp8wyafbej
SHA256 b6736050938db1c2cd9ed705c9233d90e9876cea67b0d7cc4644d92ac7cb6e20
MD5 653d1f7df97c7be3a887b4d860a0a5b9
SHA1 6acbcb4c9c9d574454ae971c49b1d09257df43d9
SHA512 3f769448831ea107b02ce9f9fb189605ad2acf804a649e7e565dae3335a505683a7d756d89bd92ecc1dc720f708b989fa87598a17dc071621a87346e4b8f6125
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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotification.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotification.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2296	MusNotification.exe
Token: SeCreatePagefilePrivilege	2296	MusNotification.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 4076	116	regsvr32.exe	54
PID 116 wrote to memory of 4076	116	regsvr32.exe	54
PID 116 wrote to memory of 4076	116	regsvr32.exe	54
PID 4076 wrote to memory of 3680	4076	regsvr32.exe	55
PID 4076 wrote to memory of 3680	4076	regsvr32.exe	55
PID 4076 wrote to memory of 3680	4076	regsvr32.exe	55

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\test.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\test.dll
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4076
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\test.dll",DllRegisterServer
    3⤵
    PID:3680

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:2296

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/4076-132-0x00000000046F5000-0x00000000046F6000-memory.dmp

Download

memory/4076-131-0x00000000046D1000-0x00000000046F5000-memory.dmp