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Analysis

  • max time kernel
    44s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 04:31

General

  • Target

    a006e853a225f612c0b4040ad8009566717867aa51d5bbc1132770bc299fc665.dll

  • Size

    64KB

  • MD5

    ac54cd6eeca22af61a18f3e1b3eb1039

  • SHA1

    6207be540bdcbd588395fab4779fafb2ea238737

  • SHA256

    a006e853a225f612c0b4040ad8009566717867aa51d5bbc1132770bc299fc665

  • SHA512

    61a3dfc81c645e6e3dfaa291fdb59c1649de739c0ac0e973adfe172f91013add139a921c8e12413f62e4cf6d98746c082e8133ba747fd44cd053e1c738546694

  • SSDEEP

    768:75ZBpuOTZZLjK3o5mVVraDh18Rh+WAz10iAceNretN/QwmGXLljL89QgX:D/xZfDe+Wm0p0t1QlGX5QL

Score
8/10

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a006e853a225f612c0b4040ad8009566717867aa51d5bbc1132770bc299fc665.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a006e853a225f612c0b4040ad8009566717867aa51d5bbc1132770bc299fc665.dll,#1
      2⤵
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1960
        • C:\Windows\SysWOW64\regedit.exe
          "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
          4⤵
          • Runs .reg file with regedit
          PID:1376

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\a.reg

    Filesize

    152B

    MD5

    b100f5324ef74ded0b998e64d07a2e19

    SHA1

    40b0d7f51bf2dd8451f1b723d21355c471a5fa46

    SHA256

    3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

    SHA512

    c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

  • memory/1744-55-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

    Filesize

    8KB