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Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/03/2024, 14:11

General

  • Target

    b253fe41b9c0ed7fbe3a8e2f38bcd864.exe

  • Size

    108KB

  • MD5

    b253fe41b9c0ed7fbe3a8e2f38bcd864

  • SHA1

    840a9a95fb366ef1ca19760d2b12c8937cedf416

  • SHA256

    73e506879a2d33b72c2dce161ff27fef46fc753d9a2dfc5590df3282bfc73ee0

  • SHA512

    9ccd560927ef21dba09cdd0d35c7f01146e3377dfb9afdfff18fa33c0a136bd0e7ad0b787a1d451d1afa85fda1bb7c1bb95b1800a22732e96a1ee8f5f4387bb7

  • SSDEEP

    768:MyV+hOvI80wziAgjzIWi3KEyUhL7b7Yqlf4JwQltjmtTBHi7Alz:MoFvJ/Y876Ezh/vYlJwAitTB3lz

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b253fe41b9c0ed7fbe3a8e2f38bcd864.exe
    "C:\Users\Admin\AppData\Local\Temp\b253fe41b9c0ed7fbe3a8e2f38bcd864.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Users\Admin\hauca.exe
      "C:\Users\Admin\hauca.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2832
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 804
      2⤵
      • Program crash
      PID:2340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\hauca.exe

    Filesize

    108KB

    MD5

    dab10ecc3b2078af4ea7161ff2944f9c

    SHA1

    05759c3e1d34ccd4c623d2105d68e5f306140d42

    SHA256

    aea9a29bd5c19f0b3d41e5cd789937539064ea0083b9b3d2a2c5e5b4868170bd

    SHA512

    dfe71dde4ce584daf4310ee705bdf92b615fd9542fc2ab56dd36aab2ec026eeaa376990a230e6b08d29bca27cb88a19fd07daef9febb4de90762beaa8afb5a4e

  • memory/2780-0-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2780-14-0x0000000003DE0000-0x0000000003E01000-memory.dmp

    Filesize

    132KB

  • memory/2780-19-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2780-20-0x0000000003DE0000-0x0000000003E01000-memory.dmp

    Filesize

    132KB

  • memory/2780-21-0x0000000003DE0000-0x0000000003E01000-memory.dmp

    Filesize

    132KB

  • memory/2832-15-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2832-22-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB