Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 04:25

General

  • Target

    2024-09-19_43f03fa573e3f16bb5d5ea2ec1b05f5c_cryptolocker.exe

  • Size

    68KB

  • MD5

    43f03fa573e3f16bb5d5ea2ec1b05f5c

  • SHA1

    f5fff4a1e49f19c8f6a2f4ebc33d49203d768aab

  • SHA256

    7f89d1887e2270ae94c9b4aab95e16f3f73df74055f2e114bc7bcc42a0061492

  • SHA512

    775346de3ed1fdf3a1f6b08e3fe69c8f1e6334829abad4fe9d205fa82c9cfce69efd135d278edacafc2fe4af4b89f4e7a7e749589959adafc4249040a6ea20cf

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGy7l:TCjsIOtEvwDpj5HE/OUHnSMY2

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-19_43f03fa573e3f16bb5d5ea2ec1b05f5c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_43f03fa573e3f16bb5d5ea2ec1b05f5c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3204
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    69KB

    MD5

    b9b7c58e2bb85f2eb4344a67ad538175

    SHA1

    39aa17dbaef77927c3edf788b7d19e0ba0a35e67

    SHA256

    37746445db7e20377c4a95a2ea730a254d47c62a01703e391ff31de2d3c2aaf8

    SHA512

    267ece30a142060818ed6bed82bb32acd6d30b8ef3a0bfcb8c6c12ed217a9a3d7d0d6c583e31a62abc8e6f224d99740de54942f5a8fb1ac9e8b263829f569796

  • C:\Users\Admin\AppData\Local\Temp\misids.exe

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2584-19-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/2584-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2584-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3204-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3204-1-0x0000000000550000-0x0000000000556000-memory.dmp

    Filesize

    24KB

  • memory/3204-2-0x0000000000550000-0x0000000000556000-memory.dmp

    Filesize

    24KB

  • memory/3204-3-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/3204-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB