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Analysis

  • max time kernel
    131s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 01:57

General

  • Target

    d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d.exe

  • Size

    110KB

  • MD5

    0fedf6d4ac56efea2dae502e79b75adb

  • SHA1

    cb6f4fd267aba0ea65b40bbe6058d4b79e5dc61b

  • SHA256

    d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d

  • SHA512

    f4d5148dec878870495768ba68937d4180f0164b2c071029af2367c30b63538f5911dbc06122000c42cad0cb4e90f0d0febe40ed00587919bad2b53002d19d57

  • SSDEEP

    1536:1EK4J6IlF7N6onUGm9WIZrODafgGiaeQEQtbIGOB/YRufD4nWerGX0FS2Q/cC:CT1rN6oUGQSaY6EQhIGOVqeD4WLHEC

Score
5/10

Malware Config

Signatures

  • Suspicious use of SetThreadContext 1 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d.exe
    "C:\Users\Admin\AppData\Local\Temp\d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d.exe
      "C:\Users\Admin\AppData\Local\Temp\d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:472
      • 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\d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d.rtf"
        3⤵
        • Drops file in Windows directory
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1152
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          4⤵
            PID:1348

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\d435ff429deac13b99705215a5081c9111895fe7babf91b422c78f73ef7da83d.rtf

      Filesize

      3KB

      MD5

      284850baa4906da63dd3c4d6b835fb03

      SHA1

      d2929834b25db5f679a5f7026c5da6cec153f7ce

      SHA256

      e9cb60622d4f5228466f5fb9bf06a5da1668097c6bdcb9088cb6040372845492

      SHA512

      234e855adea91e902bfc1d407bd95498c7a84e55ed077171291957e5940c69b0ef6a35a40e8e60eb4709f029fcec0f75ef65f92e4505ce69bc7239736042a6e0

    • memory/472-64-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/472-55-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/472-56-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/472-58-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/472-60-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/472-61-0x0000000000400000-0x0000000000404000-memory.dmp

      Filesize

      16KB

    • memory/1152-66-0x00000000720C1000-0x00000000720C4000-memory.dmp

      Filesize

      12KB

    • memory/1152-67-0x000000006FB41000-0x000000006FB43000-memory.dmp

      Filesize

      8KB

    • memory/1152-68-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1152-70-0x0000000070B2D000-0x0000000070B38000-memory.dmp

      Filesize

      44KB

    • memory/1152-74-0x0000000070B2D000-0x0000000070B38000-memory.dmp

      Filesize

      44KB

    • memory/1152-75-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1152-76-0x0000000070B2D000-0x0000000070B38000-memory.dmp

      Filesize

      44KB

    • memory/1348-73-0x000007FEFB771000-0x000007FEFB773000-memory.dmp

      Filesize

      8KB

    • memory/1504-54-0x0000000075891000-0x0000000075893000-memory.dmp

      Filesize

      8KB

    • memory/1504-63-0x0000000073EC0000-0x000000007446B000-memory.dmp

      Filesize

      5.7MB