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Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 15:37

General

  • Target

    f19ed2a23c55b0b92c5c2b5a2625d4e9fa7bdc159bb6aa87cc6af4da32c9584b.exe

  • Size

    288KB

  • MD5

    7139a78e6c6e2319f0efcd9287bca0e9

  • SHA1

    94e1f7ed58fdb42d7f44a01b65467a355083ad87

  • SHA256

    f19ed2a23c55b0b92c5c2b5a2625d4e9fa7bdc159bb6aa87cc6af4da32c9584b

  • SHA512

    9be3761c756043622ffe23373f9501b3b784fa28befccb71be309a115581278e8e204412add022efd4cbf5fe0a7a1d142ccb7fb23ea89b3c197766583982f4da

  • SSDEEP

    6144:tMGubB2lqKhG0wF+kAbUtshbrm3X+DLKlzNgGVRwZBf5Wg9w9CXvn1OHyaFvF+5m:tENTJabvhfm3XJ1tipsL5

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f19ed2a23c55b0b92c5c2b5a2625d4e9fa7bdc159bb6aa87cc6af4da32c9584b.exe
    "C:\Users\Admin\AppData\Local\Temp\f19ed2a23c55b0b92c5c2b5a2625d4e9fa7bdc159bb6aa87cc6af4da32c9584b.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Users\Admin\hisor.exe
      "C:\Users\Admin\hisor.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4740
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1396

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\hisor.exe

      Filesize

      288KB

      MD5

      7139a78e6c6e2319f0efcd9287bca0e9

      SHA1

      94e1f7ed58fdb42d7f44a01b65467a355083ad87

      SHA256

      f19ed2a23c55b0b92c5c2b5a2625d4e9fa7bdc159bb6aa87cc6af4da32c9584b

      SHA512

      9be3761c756043622ffe23373f9501b3b784fa28befccb71be309a115581278e8e204412add022efd4cbf5fe0a7a1d142ccb7fb23ea89b3c197766583982f4da

    • C:\Users\Admin\hisor.exe

      Filesize

      288KB

      MD5

      7139a78e6c6e2319f0efcd9287bca0e9

      SHA1

      94e1f7ed58fdb42d7f44a01b65467a355083ad87

      SHA256

      f19ed2a23c55b0b92c5c2b5a2625d4e9fa7bdc159bb6aa87cc6af4da32c9584b

      SHA512

      9be3761c756043622ffe23373f9501b3b784fa28befccb71be309a115581278e8e204412add022efd4cbf5fe0a7a1d142ccb7fb23ea89b3c197766583982f4da