Analysis

  • max time kernel
    45s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    15-11-2022 06:33

General

  • Target

    pss10r.chm

  • Size

    392KB

  • MD5

    8e5d477d42c9272448757883298cf37e

  • SHA1

    6add06ab9900bf173d187b56b3269a0fac4a8a17

  • SHA256

    be625229a8d2903ad4d680e47f8a93fc52cbd2e8b03594bb0e228797f786a7d4

  • SHA512

    6cc431da961c273e65e03b1eee7fa62a7d4ec6998718d66de703432bcd1712d694bd4383ac7a61f10a2e864193bea2c3e4c0463140841a989be2994106a0ff0b

  • SSDEEP

    6144:uWDGvSvzMJP0MFNZQFsI5w3IohQsEuzzH1Skh3j/A4FCR4CKK3xhkQ:uQGabxkvqw3BAeH1SkdIyazHhkQ

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • 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:1812
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start/min mshta %CD%\pss10r.chm
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1272
      • C:\Windows\system32\mshta.exe
        mshta C:\Users\Admin\AppData\Local\Temp\pss10r.chm
        3⤵
          PID:1760

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1272-55-0x0000000000000000-mapping.dmp
    • memory/1760-56-0x0000000000000000-mapping.dmp
    • memory/1812-54-0x000007FEFBCA1000-0x000007FEFBCA3000-memory.dmp
      Filesize

      8KB