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Analysis

  • max time kernel
    167s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2022, 18:05

General

  • Target

    355b2f477eb54a8efc4b2a5fe930650b7c2982190b298d1579f2b4b1daa80a0e.exe

  • Size

    172KB

  • MD5

    50d48101cc4f0a4c8df9d67a82fa6736

  • SHA1

    6ed7dd5d7f6f2b7a8314b8243e4b47cacefcef61

  • SHA256

    355b2f477eb54a8efc4b2a5fe930650b7c2982190b298d1579f2b4b1daa80a0e

  • SHA512

    379fea762e2b1a5b14a95704d26984d8fc0337f61a4919faff64c3da38ac1876f22fef542942069ad4acbf6b3f839680bc6c183f0baea7cc91b0a5aaeac87d4e

  • SSDEEP

    3072:RmFonoVD8oSx/mvXAFIFR7Nzim04f1fhLOG7GQiCLMt8Xt/Wv6mgem:RwoUD8oSx/mvXAFIFR7N7DfhhLOG7GQe

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 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\355b2f477eb54a8efc4b2a5fe930650b7c2982190b298d1579f2b4b1daa80a0e.exe
    "C:\Users\Admin\AppData\Local\Temp\355b2f477eb54a8efc4b2a5fe930650b7c2982190b298d1579f2b4b1daa80a0e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4544
    • C:\Users\Admin\hhhooy.exe
      "C:\Users\Admin\hhhooy.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
      • Suspicious use of WriteProcessMemory
      PID:4632

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\hhhooy.exe

    Filesize

    172KB

    MD5

    78a3eeed362a46e8de0b639c72f84d2d

    SHA1

    070ba930e5f8b6b5df45410d9b5c7a1985a0d400

    SHA256

    5b16ade0c7c1e0eba1e7ec7cb3413f00bfe770bd5792d12e0d189324bf9b0408

    SHA512

    ea656b7f6ca8ae4ad1a8390f766722567229e17a046284c6f22f18344f951634a69c47b1f0fa7ddae20af05e523aa0dbdf657d9db2b66b0f026ddd9d18be64b3

  • C:\Users\Admin\hhhooy.exe

    Filesize

    172KB

    MD5

    78a3eeed362a46e8de0b639c72f84d2d

    SHA1

    070ba930e5f8b6b5df45410d9b5c7a1985a0d400

    SHA256

    5b16ade0c7c1e0eba1e7ec7cb3413f00bfe770bd5792d12e0d189324bf9b0408

    SHA512

    ea656b7f6ca8ae4ad1a8390f766722567229e17a046284c6f22f18344f951634a69c47b1f0fa7ddae20af05e523aa0dbdf657d9db2b66b0f026ddd9d18be64b3