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Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/10/2022, 16:01

General

  • Target

    4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe

  • Size

    200KB

  • MD5

    44fd9959c9fe943c78ca068f8a9ef02a

  • SHA1

    6a211091a046f0720cff7ed15f78386c272ebccd

  • SHA256

    4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488

  • SHA512

    e93d30d735f64e2feac128303950105a9a750c7b1cd3ff45510bb03d07c347a51ddbe33e74bb7fb117771a3541a1e0c0d52dd5c660504a5133d940cf47a10e61

  • SSDEEP

    3072:7U0VB80tQ9nLHbB9WHCS0AgTlhsp3mWEPl:R84QxL7B9WHK9Jhsp3a9

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
  • 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\4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe
    "C:\Users\Admin\AppData\Local\Temp\4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.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:5068
    • C:\Users\Admin\yeaqa.exe
      "C:\Users\Admin\yeaqa.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:4852

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\yeaqa.exe

    Filesize

    200KB

    MD5

    49016f80c2cf2bded009ddc521b29fa3

    SHA1

    d959e1ea1f9bb1cd7056dfbf52ac8fea336280aa

    SHA256

    733712bce85746d5d90e5a5801db57319335c470efa0280e1a33d2ff3b207ff8

    SHA512

    ae41b7b4f38d04ee911c1bd694112346d993232c239652c1bcdc7592125c90df5bb5ea1f254145847bd0323f94109642a154191954680c152a35386abd9e38bb

  • C:\Users\Admin\yeaqa.exe

    Filesize

    200KB

    MD5

    49016f80c2cf2bded009ddc521b29fa3

    SHA1

    d959e1ea1f9bb1cd7056dfbf52ac8fea336280aa

    SHA256

    733712bce85746d5d90e5a5801db57319335c470efa0280e1a33d2ff3b207ff8

    SHA512

    ae41b7b4f38d04ee911c1bd694112346d993232c239652c1bcdc7592125c90df5bb5ea1f254145847bd0323f94109642a154191954680c152a35386abd9e38bb