Analysis

  • max time kernel
    151s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/10/2022, 23:22

General

  • Target

    Leak.class

  • Size

    527B

  • MD5

    c6a9ea57d50d856b44052d269349bf10

  • SHA1

    ef7c96c97235f08885ee3c7caa0ca1033472d4c8

  • SHA256

    6b570c01844b43e3e9d6d4a2d62c454401295764ba7ef8c8506f483bfdbb7769

  • SHA512

    d1967b8d7d16d374b260f6c953c4e494961ed8d44cbd91e510397e5f2228665d2ab099c7c8897b426b1e26464234d43f7e0844bda3143c128b0cee366addc096

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 registry class 10 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Leak.class
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Leak.class
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1244
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Leak.class"
        3⤵
        • Suspicious use of SetWindowsHookEx
        PID:1464

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1228-54-0x000007FEFB8D1000-0x000007FEFB8D3000-memory.dmp

    Filesize

    8KB

  • memory/1464-82-0x0000000075561000-0x0000000075563000-memory.dmp

    Filesize

    8KB