9ce84380614d0eb61fd657c42593e5cd91d122f614c00c5edea6514241951854

Analysis

max time kernel
47s
max time network
51s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-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

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main	hh.exe
Key created	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1276	hh.exe
1276	hh.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 1412	1276	hh.exe	28
PID 1276 wrote to memory of 1412	1276	hh.exe	28
PID 1276 wrote to memory of 1412	1276	hh.exe	28
PID 1412 wrote to memory of 1492	1412	cmd.exe	30
PID 1412 wrote to memory of 1492	1412	cmd.exe	30
PID 1412 wrote to memory of 1492	1412	cmd.exe	30
PID 1492 wrote to memory of 1704	1492	mshta.exe	31
PID 1492 wrote to memory of 1704	1492	mshta.exe	31
PID 1492 wrote to memory of 1704	1492	mshta.exe	31
PID 1704 wrote to memory of 1556	1704	cmd.exe	33
PID 1704 wrote to memory of 1556	1704	cmd.exe	33
PID 1704 wrote to memory of 1556	1704	cmd.exe	33

C:\Windows\hh.exe
"C:\Windows\hh.exe" C:\Users\Admin\AppData\Local\Temp\pss10r.chm
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start/min mshta %CD%\pss10r.chm
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1412
- - C:\Windows\system32\mshta.exe
    mshta C:\Users\Admin\AppData\Local\Temp\pss10r.chm
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of WriteProcessMemory
    PID:1492
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c rundll32 \app.dll, #1
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1704
    - - C:\Windows\system32\rundll32.exe
        
        rundll32 \app.dll, #1
        5⤵
        
        PID:1556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1276-54-0x000007FEFBFB1000-0x000007FEFBFB3000-memory.dmp

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