Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-06-2024 06:45

General

  • Target

    合同.exe

  • Size

    22.7MB

  • MD5

    0185d2869f57f204f9a6900fd64d03ae

  • SHA1

    0b8f9dfa134a601ad9e3a24b520e567ad530a06f

  • SHA256

    44609ee456529c19b6193f5a12d0bff9bad6df4305c5c2a4b92aa2a314b9cfa2

  • SHA512

    3740aa9f17de48dd882b4be921d3fb848ec89bc07d3f395506d81cd5232c7735d42306c88d9db5c77714d95330232c62e073c927870e2f61dd736590040636f0

  • SSDEEP

    196608:qEYpB1oNKPLCuSJlCuA5GLAlyFzG/ArV/fT/Tn82QDZE7N1YA:pQyNKPLCuS3CD/k1T7B7AA

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\合同.exe
    "C:\Users\Admin\AppData\Local\Temp\合同.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Users\Admin\Documents\Tomcat.exe
      "C:\Users\Admin\Documents\Tomcat.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\Tomcat.exe

    Filesize

    1.6MB

    MD5

    915a23beb4886796c9629f3622cf0a8d

    SHA1

    4ba8b90473d1f46c08e779dfe6a241e5a82982fd

    SHA256

    87a65cb469d7a4fa14dc4e1ad4af5325f5e792692929a37907a1e281ef89b865

    SHA512

    dc0fcc44b9e7c5e2d6a05ab47e8c93a79416168fa63f0abbd5349346cda7c7df2c1b27710c06b99454ef50e56833ed7e2e9d1a0744d08d7cf5c7d41eb8ba719e

  • C:\Users\Admin\Documents\conf.ini

    Filesize

    98B

    MD5

    43d321644c9d7ee72ab205009d64bc77

    SHA1

    d3667be512967885aea7f03f7b5cc1e5a150066c

    SHA256

    1eb4a00edca2d0db22abeb8597b9cb51a6f347edf756b1e22918db1c4be6ad84

    SHA512

    42523cb3e4366bd4dc4d823f5b5f3df6f31429d7a4a8667a4414168252a8cfef4b1c32099f230666b980044ccf8329a5bcbc3e01c08182228272f4a1d7c6309a

  • memory/2720-1-0x0000000006D90000-0x0000000006DB7000-memory.dmp

    Filesize

    156KB

  • memory/2720-2-0x0000000010000000-0x0000000010014000-memory.dmp

    Filesize

    80KB

  • memory/2720-3-0x0000000010000000-0x0000000010014000-memory.dmp

    Filesize

    80KB

  • memory/4328-26-0x0000000000B10000-0x0000000000CCB000-memory.dmp

    Filesize

    1.7MB

  • memory/4328-21-0x0000000000B6B000-0x0000000000B6C000-memory.dmp

    Filesize

    4KB

  • memory/4328-27-0x0000000000B10000-0x0000000000CCB000-memory.dmp

    Filesize

    1.7MB

  • memory/4328-18-0x0000000002480000-0x00000000024AB000-memory.dmp

    Filesize

    172KB

  • memory/4328-25-0x0000000000B10000-0x0000000000CCB000-memory.dmp

    Filesize

    1.7MB

  • memory/4328-23-0x0000000000B10000-0x0000000000CCB000-memory.dmp

    Filesize

    1.7MB

  • memory/4328-12-0x0000000010000000-0x0000000010109000-memory.dmp

    Filesize

    1.0MB

  • memory/4328-24-0x0000000002CF0000-0x0000000002D49000-memory.dmp

    Filesize

    356KB

  • memory/4328-20-0x0000000002530000-0x0000000002548000-memory.dmp

    Filesize

    96KB

  • memory/4328-30-0x0000000002CF0000-0x0000000002D49000-memory.dmp

    Filesize

    356KB

  • memory/4328-33-0x0000000002530000-0x0000000002548000-memory.dmp

    Filesize

    96KB

  • memory/4328-32-0x0000000000B10000-0x0000000000CCB000-memory.dmp

    Filesize

    1.7MB