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Analysis

  • max time kernel
    104s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 04:14

General

  • Target

    f52898a7a0d283c24431654982adada9dbc5359259c9f5748808458d473ddb1a.exe

  • Size

    287KB

  • MD5

    039e00216be710c9bfd9996f19a685b0

  • SHA1

    7b22756b81426458d7e45f2ebd8fd7ca655fe417

  • SHA256

    f52898a7a0d283c24431654982adada9dbc5359259c9f5748808458d473ddb1a

  • SHA512

    c053271be75415a83961378d1523012822f47d2c7778e83b6a805b76e8be5f686379b40e15671c744b75271443c255cf1a663d8de3e43d6d69add16817d81f86

  • SSDEEP

    6144:XIQsbun/1o3F3eZZJDZfgPOmCTC+bgC93joA6bp6Hky3+hekFuD:X0bun/W34ZZJ1cjCT3bgO16bY+AD

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f52898a7a0d283c24431654982adada9dbc5359259c9f5748808458d473ddb1a.exe
    "C:\Users\Admin\AppData\Local\Temp\f52898a7a0d283c24431654982adada9dbc5359259c9f5748808458d473ddb1a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Users\Admin\AppData\Roaming\A7PJ81\BH5XA3.exe
      "C:\Users\Admin\AppData\Roaming\A7PJ81\BH5XA3.exe" -launcher
      2⤵
      • Executes dropped EXE
      PID:1620
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\f52898a7a0d283c24431654982adada9dbc5359259c9f5748808458d473ddb1a.exe--.doc"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:276
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1940

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\f52898a7a0d283c24431654982adada9dbc5359259c9f5748808458d473ddb1a.exe--.doc

      Filesize

      34KB

      MD5

      a3506ffd6c7d1afa800a2b1751f64da6

      SHA1

      d329cbf7852b89242078703ba876650c85b42c2c

      SHA256

      90ef7066dc5806916e510f413b23a28f0076628cd3a4f5c7d4e273ac6ae316ec

      SHA512

      77930500ea97214ed013a550bcc21fcd6b6ef004e3b3acb09f3d83bff5cf28e9999d3826adb1d8523ecaf712b08263e436eca7800736da09e41c7c3380fa2d61

    • C:\Users\Admin\AppData\Roaming\A7PJ81\BH5XA3.exe

      Filesize

      227KB

      MD5

      2a6e093535f97571ad659d6639dfd51f

      SHA1

      23a661afa9db77e9c9051ba83633f4082f591f10

      SHA256

      42e54dcb4ac266a981138fa70a61051b033b493050440d8c387d05c0a76d6cb3

      SHA512

      740a0f7d50c121baeed391615d46a4c996344c0d360ceaee65eaa1c3c87a20d977ad2732d9f89cd78229dcb21f49b2ee2fd10ee35161b59651ec625e622545d6

    • C:\Users\Admin\AppData\Roaming\A7PJ81\BH5XA3.exe

      Filesize

      227KB

      MD5

      2a6e093535f97571ad659d6639dfd51f

      SHA1

      23a661afa9db77e9c9051ba83633f4082f591f10

      SHA256

      42e54dcb4ac266a981138fa70a61051b033b493050440d8c387d05c0a76d6cb3

      SHA512

      740a0f7d50c121baeed391615d46a4c996344c0d360ceaee65eaa1c3c87a20d977ad2732d9f89cd78229dcb21f49b2ee2fd10ee35161b59651ec625e622545d6

    • \Users\Admin\AppData\Roaming\A7PJ81\BH5XA3.exe

      Filesize

      227KB

      MD5

      2a6e093535f97571ad659d6639dfd51f

      SHA1

      23a661afa9db77e9c9051ba83633f4082f591f10

      SHA256

      42e54dcb4ac266a981138fa70a61051b033b493050440d8c387d05c0a76d6cb3

      SHA512

      740a0f7d50c121baeed391615d46a4c996344c0d360ceaee65eaa1c3c87a20d977ad2732d9f89cd78229dcb21f49b2ee2fd10ee35161b59651ec625e622545d6

    • \Users\Admin\AppData\Roaming\A7PJ81\BH5XA3.exe

      Filesize

      227KB

      MD5

      2a6e093535f97571ad659d6639dfd51f

      SHA1

      23a661afa9db77e9c9051ba83633f4082f591f10

      SHA256

      42e54dcb4ac266a981138fa70a61051b033b493050440d8c387d05c0a76d6cb3

      SHA512

      740a0f7d50c121baeed391615d46a4c996344c0d360ceaee65eaa1c3c87a20d977ad2732d9f89cd78229dcb21f49b2ee2fd10ee35161b59651ec625e622545d6

    • memory/276-70-0x0000000070A0D000-0x0000000070A18000-memory.dmp

      Filesize

      44KB

    • memory/276-72-0x0000000070A0D000-0x0000000070A18000-memory.dmp

      Filesize

      44KB

    • memory/276-77-0x0000000070A0D000-0x0000000070A18000-memory.dmp

      Filesize

      44KB

    • memory/276-76-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/276-65-0x0000000071FA1000-0x0000000071FA4000-memory.dmp

      Filesize

      12KB

    • memory/276-66-0x000000006FA21000-0x000000006FA23000-memory.dmp

      Filesize

      8KB

    • memory/276-67-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1620-60-0x0000000000330000-0x0000000000357000-memory.dmp

      Filesize

      156KB

    • memory/1620-61-0x0000000000400000-0x000000000043F000-memory.dmp

      Filesize

      252KB

    • memory/1744-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

      Filesize

      8KB

    • memory/1744-71-0x0000000000400000-0x0000000000445000-memory.dmp

      Filesize

      276KB

    • memory/1744-63-0x0000000000400000-0x0000000000445000-memory.dmp

      Filesize

      276KB

    • memory/1744-62-0x0000000000240000-0x0000000000267000-memory.dmp

      Filesize

      156KB

    • memory/1940-74-0x000007FEFB651000-0x000007FEFB653000-memory.dmp

      Filesize

      8KB