b6736050938db1c2cd9ed705c9233d90e9876cea67b0d7cc4644d92ac7cb6e20

Resubmissions

27-01-2022 11:13

220127-nbxzmabhc4 10

18-01-2022 01:25

220118-bsxzqsfad5 10

15-01-2022 16:15

220115-tp8wyafbej 1

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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Report Analysis Logs

General

Target

test.dll
Size

574KB
MD5

653d1f7df97c7be3a887b4d860a0a5b9
SHA1

6acbcb4c9c9d574454ae971c49b1d09257df43d9
SHA256

b6736050938db1c2cd9ed705c9233d90e9876cea67b0d7cc4644d92ac7cb6e20
SHA512

3f769448831ea107b02ce9f9fb189605ad2acf804a649e7e565dae3335a505683a7d756d89bd92ecc1dc720f708b989fa87598a17dc071621a87346e4b8f6125

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

Processes:

MusNotification.exe

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

Processes:

MusNotification.exe

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

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

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/3680-133-0x0000000000000000-mapping.dmp

Download
memory/4076-130-0x0000000000000000-mapping.dmp

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

Filesize
4KB

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

Filesize
144KB

Download