Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2022, 23:53

General

  • Target

    82f7db124d55b82598fbdcdce2fae4b282f619fc63c85b249aed9c50b3f6ccdd.exe

  • Size

    260KB

  • MD5

    66c608a4ffe0d7623b4f64b56c29a1ed

  • SHA1

    93f3a11bad3d94852e9978fb972856e0021b9710

  • SHA256

    82f7db124d55b82598fbdcdce2fae4b282f619fc63c85b249aed9c50b3f6ccdd

  • SHA512

    31b8a51bebe159d6aa0a661966ea3ce9cb2e8e45e751c3c7f9e9de946b7b6a7ea116a7c70574cdc081e039175e4b86a0743914d01c4266d75b2a8776e5295532

  • SSDEEP

    3072:jgfAlNOvh25n/kZoSUjMqXnpWAkpAmTSrMaIOYt/jo7LAtPhjjtZnfHFEoWBfGV1:jdngTSrMaIl/jcLijfHFEHWzXvjT85R

Score
10/10

Malware Config

Signatures

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

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

  • 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). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82f7db124d55b82598fbdcdce2fae4b282f619fc63c85b249aed9c50b3f6ccdd.exe
    "C:\Users\Admin\AppData\Local\Temp\82f7db124d55b82598fbdcdce2fae4b282f619fc63c85b249aed9c50b3f6ccdd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Users\Admin\zxfoik.exe
      "C:\Users\Admin\zxfoik.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
      PID:1936

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\zxfoik.exe

          Filesize

          260KB

          MD5

          089f79ebe78879b6eb4b72907df1713b

          SHA1

          f51f071bef90501417911ca266e2498e92e6788f

          SHA256

          9569c4f2c1126b8ac3aa0edc6511996d5fa26dadde87ab1f68db58948e265af8

          SHA512

          ae71a125f2d8828a050cb2d48abde3830dacd4cb5fca14b09f6a3ee5de695d825faff270299bb3166b4a965f64f5485dbb0ee493de4973dc90868784928d708c

        • C:\Users\Admin\zxfoik.exe

          Filesize

          260KB

          MD5

          089f79ebe78879b6eb4b72907df1713b

          SHA1

          f51f071bef90501417911ca266e2498e92e6788f

          SHA256

          9569c4f2c1126b8ac3aa0edc6511996d5fa26dadde87ab1f68db58948e265af8

          SHA512

          ae71a125f2d8828a050cb2d48abde3830dacd4cb5fca14b09f6a3ee5de695d825faff270299bb3166b4a965f64f5485dbb0ee493de4973dc90868784928d708c