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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/03/2024, 21:24

General

  • Target

    8ecfabe7af1b9f3ebe30842e11f609e281089a821c5974b9a1d2fecd31e7081b.exe

  • Size

    234KB

  • MD5

    cb92ebf96efb9c65449c3aeac8a4dd4c

  • SHA1

    1423638ca3bd4eee278fe4378c0c9bcc64cd8c29

  • SHA256

    8ecfabe7af1b9f3ebe30842e11f609e281089a821c5974b9a1d2fecd31e7081b

  • SHA512

    97c4d029f8edb583d8e1a05b07d5bfe2cfd38c92658ebac4b36f9d7016dcf1302439cd4d45e4bcab9ff877889f5ab5dd013e7562e28822611be74da03c808a44

  • SSDEEP

    6144:pMI7UCCRtAortyeWPWncRgUe0mHf1PiG6afbUHl:pvUCwhoXqc+YOP76ObU

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    PID:3580
    • C:\Users\Admin\AppData\Local\Temp\8ecfabe7af1b9f3ebe30842e11f609e281089a821c5974b9a1d2fecd31e7081b.exe
      "C:\Users\Admin\AppData\Local\Temp\8ecfabe7af1b9f3ebe30842e11f609e281089a821c5974b9a1d2fecd31e7081b.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4456
      • C:\Users\Admin\AppData\Roaming\coloshta\explvr32.exe
        "C:\Users\Admin\AppData\Roaming\coloshta"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1280
        • C:\Users\Admin\AppData\Local\Temp\~3C1E.tmp
          3580 239624 1280 1
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4648
  • C:\Windows\SysWOW64\diskkill.exe
    C:\Windows\SysWOW64\diskkill.exe -s
    1⤵
    • Executes dropped EXE
    PID:2116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~3C1E.tmp

    Filesize

    8KB

    MD5

    86dc243576cf5c7445451af37631eea9

    SHA1

    99a81c47c4c02f32c0ab456bfa23c306c7a09bf9

    SHA256

    25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a

    SHA512

    c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

  • C:\Users\Admin\AppData\Roaming\coloshta\explvr32.exe

    Filesize

    234KB

    MD5

    d2f7007661f6c7d95b5d84f59ec5bc68

    SHA1

    1399c0ac87530203bd8725765cee2a05aa774b25

    SHA256

    e5b8b343bff5ca3c10312e75e0ebf406de0dfaecc040330ff3fce3ffb29b06b2

    SHA512

    9f4b645e1ca67c60f6c280ff213004e265d053041da2d560b571ffe3fd03fed5eabfa1d2c43869cba341e6dcb544503d3f66ef7ea94d34c6cfa77a9b5f3d459d

  • memory/1280-7-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/1280-14-0x0000000000510000-0x0000000000553000-memory.dmp

    Filesize

    268KB

  • memory/1280-18-0x00000000005B0000-0x00000000005B5000-memory.dmp

    Filesize

    20KB

  • memory/2116-16-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/3580-17-0x0000000002700000-0x000000000274A000-memory.dmp

    Filesize

    296KB

  • memory/3580-13-0x0000000002700000-0x000000000274A000-memory.dmp

    Filesize

    296KB

  • memory/3580-20-0x00000000024A0000-0x00000000024A6000-memory.dmp

    Filesize

    24KB

  • memory/3580-22-0x0000000002660000-0x000000000266D000-memory.dmp

    Filesize

    52KB

  • memory/4456-0-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/4456-1-0x0000000000440000-0x0000000000483000-memory.dmp

    Filesize

    268KB

  • memory/4456-25-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB