9ce84380614d0eb61fd657c42593e5cd91d122f614c00c5edea6514241951854

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
09/08/2022, 15:31

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General

Target
pss10r.chm
Size 391KB
Sample220809-sx2bdscbfm
SHA256 d3b3627a34b3738327449653acfc5509be290722648fd1f55ee09bd0a6ff941f
MD5 dfd56b769ad71671a22b2fb83d4863e4
SHA1 85fe9e548b8cf44ba0bf0b7cab3d3fcc264d7e3d
SHA512 c7be11f040d52fc34caa68d7c423d16ceccedb16c3e5c6e8481f483563b61f60ab6adba41ac99381bdce34c91e81ee99c75524a8fe3edfdb7137f05a40eeef3f
MD5 SHA1 SHA512

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-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	mshta.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3576	hh.exe
3576	hh.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 4972	3576	hh.exe	85
PID 3576 wrote to memory of 4972	3576	hh.exe	85
PID 4972 wrote to memory of 224	4972	cmd.exe	87
PID 4972 wrote to memory of 224	4972	cmd.exe	87
PID 224 wrote to memory of 2448	224	mshta.exe	88
PID 224 wrote to memory of 2448	224	mshta.exe	88
PID 2448 wrote to memory of 3644	2448	cmd.exe	90
PID 2448 wrote to memory of 3644	2448	cmd.exe	90

C:\Windows\hh.exe
"C:\Windows\hh.exe" C:\Users\Admin\AppData\Local\Temp\pss10r.chm
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3576
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start/min mshta %CD%\pss10r.chm
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Windows\system32\mshta.exe
    mshta C:\Users\Admin\AppData\Local\Temp\pss10r.chm
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:224
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c rundll32 \app.dll, #1
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2448
    - - C:\Windows\system32\rundll32.exe
        
        rundll32 \app.dll, #1
        5⤵
        
        PID:3644

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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