Analysis

  • max time kernel
    119s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/09/2024, 02:49

General

  • Target

    f57fb2cdca887ff0a5c026d21dba7450N.exe

  • Size

    56KB

  • MD5

    f57fb2cdca887ff0a5c026d21dba7450

  • SHA1

    afc76bea3e9424132e430539e83f7ac670a38e51

  • SHA256

    1a8af69e50503200cb0fe87a4d71718d1bb5b1b4c7d908c8f9ea74fc778a6fb5

  • SHA512

    2dc43837e6f2176a830e568c8171a0e8ba775a751ba76618f5870b44ab84b490dd9a66b67efb7616c6489f779e629892fb6dc93a3eb0b2216f0da0f2189df962

  • SSDEEP

    1536:SLQc0tQgnRt9UdLw6BNMyBhXZxHJ6P6D5y:Ggz07JjD5y

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 51 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f57fb2cdca887ff0a5c026d21dba7450N.exe
    "C:\Users\Admin\AppData\Local\Temp\f57fb2cdca887ff0a5c026d21dba7450N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:208
    • C:\Users\Admin\nzjuiz.exe
      "C:\Users\Admin\nzjuiz.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:2816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\nzjuiz.exe

    Filesize

    56KB

    MD5

    dfe6b3badee1b1950ccd1fc659dd8e99

    SHA1

    acef03bf63c7eea98691a9587a7a8dfd089438e5

    SHA256

    93b556c6cf6e173ac0951766fc03aebc337bb93e5d36e223e183bb3e3e1ea4a4

    SHA512

    eb2d55bcad1910b443c3c0a7f860fcfc3369fa028a4f93d4e4994cf19c683c5b5cebfc23a627e8772396e151dc0b9aaf7fad214370e3f77fd69bd098885c0282