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Analysis

  • max time kernel
    48s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2024, 19:07

General

  • Target

    a8f899982e4f836cd74a1e28a5dc20c5.exe

  • Size

    233KB

  • MD5

    a8f899982e4f836cd74a1e28a5dc20c5

  • SHA1

    13252a58ff0d28c419f643f785d77bea554031e2

  • SHA256

    35d0012e668948eee551f6220bfc9d9c9694fc90f8c8cedbfafab80af5a1e3c5

  • SHA512

    509347ffe6078b39024b2923adb6e4e6fdaacc57bf789e8fad3837a22f67eb24ef5f3ca6f25f977d40f546938f73da9d4637f1db704ce2caeee44fcf757d0a32

  • SSDEEP

    3072:tTvbYrCz8G0OBdJ3RSM2R7l9NwHAspt2vKPomIYjLIMeZvJ9bi1dwgdPW3CagwBu:tQrC73jSbvGA+gn+LNuJdi1bUB

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 18 IoCs
  • Modifies security service 2 TTPs 26 IoCs
  • Deletes itself 1 IoCs
  • Unexpected DNS network traffic destination 6 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8f899982e4f836cd74a1e28a5dc20c5.exe
    "C:\Users\Admin\AppData\Local\Temp\a8f899982e4f836cd74a1e28a5dc20c5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      PID:3028
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1312
  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
    • Modifies firewall policy service
    • Modifies security service
    • Drops desktop.ini file(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \systemroot\Installer\{dd77332d-3cac-1fe8-6ec7-2350d0346c53}\@

    Filesize

    2KB

    MD5

    33108bf68d234291965f356945303a80

    SHA1

    d12178a1bdd54e5e103abfa2c5d89b85ea027985

    SHA256

    39c86c3248347c175b8450a69c92cca2e28a1103f3193a41de432797d221aaa1

    SHA512

    e4bf160b41c6c405196d6045da257e8d37c29233d53de277cf0fbfbd09bf37542395d310623b8c154318069ca4ed13278b3c2109e68badeaa652f70b450b1149

  • memory/480-12-0x0000000000200000-0x000000000020F000-memory.dmp

    Filesize

    60KB

  • memory/480-19-0x0000000000210000-0x000000000021F000-memory.dmp

    Filesize

    60KB

  • memory/480-27-0x0000000000210000-0x000000000021F000-memory.dmp

    Filesize

    60KB

  • memory/480-26-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/480-18-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/480-8-0x0000000000200000-0x000000000020F000-memory.dmp

    Filesize

    60KB

  • memory/480-16-0x0000000000200000-0x000000000020F000-memory.dmp

    Filesize

    60KB

  • memory/480-17-0x0000000000210000-0x000000000021F000-memory.dmp

    Filesize

    60KB

  • memory/1312-5-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1312-25-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2316-2-0x00000000003A0000-0x00000000003DE000-memory.dmp

    Filesize

    248KB

  • memory/2316-0-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2316-1-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2316-23-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2316-24-0x00000000003A0000-0x00000000003DE000-memory.dmp

    Filesize

    248KB

  • memory/2316-4-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2316-3-0x0000000000030000-0x0000000000031000-memory.dmp

    Filesize

    4KB