Analysis

  • max time kernel
    1802s
  • max time network
    1820s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 22:18

General

  • Target

    The-MALWARE-Repo-master/Worm/Vobfus/Vobus.exe

  • Size

    384KB

  • MD5

    966bb4bdfe0edb89ec2d43519c6de3af

  • SHA1

    7aa402e5241ff1ca2aeabeeda8928579902ad81a

  • SHA256

    ef12832d67a099282b6aad1bf2858375dd4b53c67638daf12a253bc9f918b77f

  • SHA512

    71b8cf14055caee1322976dc0ac777bdd0f9058ee37d30d7967bdc28d80f66d0d478c939501be5f9c70245e5b161c69ad36721a7c6454fea9abe76786934db66

  • SSDEEP

    3072:rtyFjchUoBENcPCkTaVYD3CbbTDMo6ZWbBrM/LqibDdjGRc32R7srGADv1FSJl:rqJVYD3KDN6ZWbBrM/GiDoO3IsrTvI

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 53 IoCs
  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\The-MALWARE-Repo-master\Worm\Vobfus\Vobus.exe
    "C:\Users\Admin\AppData\Local\Temp\The-MALWARE-Repo-master\Worm\Vobfus\Vobus.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Users\Admin\juiet.exe
      "C:\Users\Admin\juiet.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
      PID:2040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\juiet.exe

    Filesize

    384KB

    MD5

    b1105e0495b789bcacfd1abb0aea218e

    SHA1

    eef9ef2bab2d21b84787e025fd4375aa9de4297d

    SHA256

    6fac5e1e778620f20faf1a81828646f0efed6a14d7a774358d1bdd4034daf32a

    SHA512

    ce5ded0a0ad04a2eeb7ccff273fcf154d8a4da737c7e81f96b99a589bc2f281a8f4f3f64409fe05a28df8e8f8ee1ff20895cc2425d5f218047edca07462d51de