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Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24/12/2023, 21:32

General

  • Target

    131cb4bac07a6c0bb62b99c3436e9ed7.exe

  • Size

    1003KB

  • MD5

    131cb4bac07a6c0bb62b99c3436e9ed7

  • SHA1

    b6c462824f587a84c42552f62e47d9c8c245d738

  • SHA256

    71f2090aa6bf7d3a01ee849d171ea53fdc78e04e128eeee81792929290bce062

  • SHA512

    00664bc86960ba26e3034e3313951f836b0eda855e49c77e3aee868f792335e1df2814caac3a11aae54024d1dfd3d65f73f63b850534f13ce07ecec474040952

  • SSDEEP

    12288:Iv/HDkCCLbxmUwRT+k2+qyhhvIm/2YoSHUabaiVqJqlTwkzp/h3GX:kgVbxmBRL2lIvLkanVd/tu

Score
7/10

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Installs/modifies Browser Helper Object 2 TTPs 5 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\131cb4bac07a6c0bb62b99c3436e9ed7.exe
    "C:\Users\Admin\AppData\Local\Temp\131cb4bac07a6c0bb62b99c3436e9ed7.exe"
    1⤵
    • Loads dropped DLL
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\_delme.bat
      2⤵
      • Deletes itself
      PID:1268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_delme.bat

    Filesize

    184B

    MD5

    e76c3d6924ed4d86887170463d4f3f41

    SHA1

    523929a190aadbde21368a9cd9c3f577190ff72a

    SHA256

    233522b8440c206520cf2cf27eee5fc83c90f42559eea0c4349a15af55191110

    SHA512

    b6f8463aaece12be2d9261938ba2de9d4d2421cc58467cfdde8eb1355f52b2aebed8375a7a828cfd9eb04bcf373d193612322decbf989236354cd52d026a99bd

  • \Windows\SysWOW64\myspace~1.dll

    Filesize

    335KB

    MD5

    dc56093798a32fbdeef4dd083fbefd7c

    SHA1

    fa00cbf59110184c042cff4138886ae3b91fefe9

    SHA256

    03dd8ba935931ea50b147d937609ee6cc585ab1786620a4532e3992bfae5da14

    SHA512

    83933edab4034a9398b6285f95a004b216f04ca1c828d1994d5d54ffc9db7e7b66d7edf016dd8eac6e585bf08e8e46448f575e7fefb31b68db0c9f2f5ad951f1

  • memory/2484-0-0x0000000000400000-0x00000000004FC000-memory.dmp

    Filesize

    1008KB

  • memory/2484-1-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2484-7-0x0000000001FD0000-0x00000000020A0000-memory.dmp

    Filesize

    832KB

  • memory/2484-15-0x0000000000400000-0x00000000004FC000-memory.dmp

    Filesize

    1008KB