a75b04b359e9fba84407f4763ee90c36031685de4ea4b38020f9913b815baf71

Analysis

max time kernel
4265058s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
17/01/2022, 16:16

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General

Target

image.cmd.exe
Size

3.1MB
MD5

6f16cdd2022697146305e80f3a0b0d18
SHA1

67ba9eeaf24aa39a5bfd0d385cdd8fa756f4405e
SHA256

a75b04b359e9fba84407f4763ee90c36031685de4ea4b38020f9913b815baf71
SHA512

6121c3872a52c54314c158b4b05b144c439d5d3a87ed59616fc241926a4df2097a2c455901a7b5b6b0a603fd107ed6c19ac6a58d635f8a0bb2d9d5e46fb4c6e5

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	cmd.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	mspaint.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000_Classes\Local Settings	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3304	mspaint.exe
3304	mspaint.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3532	MusNotification.exe
Token: SeCreatePagefilePrivilege	3532	MusNotification.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3288	image.cmd.exe
3288	image.cmd.exe
3288	image.cmd.exe
3304	mspaint.exe
3304	mspaint.exe
3304	mspaint.exe
3304	mspaint.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 3528	3288	image.cmd.exe	56
PID 3288 wrote to memory of 3528	3288	image.cmd.exe	56
PID 3288 wrote to memory of 3528	3288	image.cmd.exe	56
PID 3528 wrote to memory of 3304	3528	cmd.exe	61
PID 3528 wrote to memory of 3304	3528	cmd.exe	61
PID 3528 wrote to memory of 3304	3528	cmd.exe	61

C:\Users\Admin\AppData\Local\Temp\image.cmd.exe
"C:\Users\Admin\AppData\Local\Temp\image.cmd.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\FILE.bmp
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3528
- - C:\Windows\SysWOW64\mspaint.exe
    "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\FILE.bmp"
    3⤵
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:3304

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:3532

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/3288-130-0x0000000000950000-0x0000000000956000-memory.dmp

Filesize
24KB

Download
memory/3288-131-0x0000000000950000-0x000000000095A000-memory.dmp

Filesize
40KB

Download