Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/11/2024, 05:40

General

  • Target

    f2b2ef6c73ab8c35e8de3c74a4129b56ce734f495f06355a6ace47b4ec79bcf2.exe

  • Size

    204KB

  • MD5

    1db9d5458245ce03acd49950eac93847

  • SHA1

    c14fbfde5b7ae2ed298bd454b4e7f6a2cdfb3bbc

  • SHA256

    f2b2ef6c73ab8c35e8de3c74a4129b56ce734f495f06355a6ace47b4ec79bcf2

  • SHA512

    4fb815ff9024dc00cc1ffd78e7bbcd31bff248825dcca33bdd6cee5e54f792cffd24756cbf67d9953e5d48a6ad4637dc5ed2b47dca5208017ca512d8c024489c

  • SSDEEP

    768:LlvMaflJyvUc8wbjMPkG1VuW/wqvRXMXp677yCzdXZRT2Nq1MaQnepMri14PGBEu:LRltJKBlGVs4emEFb3P0lp

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 50 IoCs
  • UPX packed file 5 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f2b2ef6c73ab8c35e8de3c74a4129b56ce734f495f06355a6ace47b4ec79bcf2.exe
    "C:\Users\Admin\AppData\Local\Temp\f2b2ef6c73ab8c35e8de3c74a4129b56ce734f495f06355a6ace47b4ec79bcf2.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Users\Admin\fuoanuv.exe
      "C:\Users\Admin\fuoanuv.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\fuoanuv.exe

    Filesize

    204KB

    MD5

    9575e3eaa22bed39312d3d9b9b14e3bf

    SHA1

    df72a68c402cac0a024dc528b9485b74734df072

    SHA256

    467d080f9584fb47a22fd939336315853d92b5c863ef7346649d54e9a6f54f98

    SHA512

    3f2e8c8000e96e926b2b91d366cfd2971702fae8e83a45e4a50bae66d87be2c3cd9a6ac1b4e4aef19ee01c0124c73c807adeb8285b463c05c0a6ccf6a127c8ce

  • memory/1740-16-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

  • memory/1740-23-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

  • memory/3056-0-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

  • memory/3056-15-0x00000000030A0000-0x00000000030E3000-memory.dmp

    Filesize

    268KB

  • memory/3056-14-0x00000000030A0000-0x00000000030E3000-memory.dmp

    Filesize

    268KB

  • memory/3056-20-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

  • memory/3056-21-0x00000000030A0000-0x00000000030E3000-memory.dmp

    Filesize

    268KB

  • memory/3056-22-0x00000000030A0000-0x00000000030E3000-memory.dmp

    Filesize

    268KB