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Analysis

  • max time kernel
    157s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 00:20

General

  • Target

    859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3.exe

  • Size

    268KB

  • MD5

    f5af296d50d4a0474e56d12e7bdef821

  • SHA1

    89ad607cdda477ec9728c4c02f32dd58620a2e29

  • SHA256

    859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3

  • SHA512

    4ec546a2b70739c1a335b841a0219e76748077240d40c21fc38d3634e017251febe7a3d53db51ca581d3c43094de3481e9b14a0ff14accce012d08b751ce02bc

  • SSDEEP

    6144:XmbOJl0UMS422Ous+azXt3D+Qh/pHq8+6IcLaOO3VX6uB/eBcJwRiY10Nfz:t0UMS4hsJzXt3D+Qh3IcqK25

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 52 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\859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3.exe
    "C:\Users\Admin\AppData\Local\Temp\859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4236
    • C:\Users\Admin\keahuc.exe
      "C:\Users\Admin\keahuc.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:4984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\keahuc.exe

    Filesize

    268KB

    MD5

    8c58da68647d92712d1010b00d20a445

    SHA1

    52d2adde4b36002344e46540cd6ab4d2ca4c4d34

    SHA256

    a092722e0ac21046c962d8ecde14c7a3b454431b41ed4c30ddcdcb7ca1d986e9

    SHA512

    fffa062f36d7abc67a3d75693996012d1311d45cb780039e2c14e30dd77cedcbf3eaf01a0bc74d546ad6bd3e33f6edd06324687b9c90f9b983dfccc9ed2ec241

  • C:\Users\Admin\keahuc.exe

    Filesize

    268KB

    MD5

    8c58da68647d92712d1010b00d20a445

    SHA1

    52d2adde4b36002344e46540cd6ab4d2ca4c4d34

    SHA256

    a092722e0ac21046c962d8ecde14c7a3b454431b41ed4c30ddcdcb7ca1d986e9

    SHA512

    fffa062f36d7abc67a3d75693996012d1311d45cb780039e2c14e30dd77cedcbf3eaf01a0bc74d546ad6bd3e33f6edd06324687b9c90f9b983dfccc9ed2ec241