Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2024 17:51

General

  • Target

    2024-01-25_5ef553290eefdf29a58decf9ce6e36b3_cryptolocker.exe

  • Size

    71KB

  • MD5

    5ef553290eefdf29a58decf9ce6e36b3

  • SHA1

    5e62c82bdee69dc57db8cf2f5e3521c71061d5f3

  • SHA256

    2ce181456f1c9ab60f789e29b5290e53bee1bfe021636c109595dae0211538c5

  • SHA512

    3f062302e3f671bdb28f20c75ee56bd6d908ac32533ff848b5f43b8f87277bd2275ae42198010d7e760762ef8fc0c3dff451f0edce9efe351530a29e4fd321c9

  • SSDEEP

    1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1bb:X6a+SOtEvwDpjBZYvQd2H

Score
10/10

Malware Config

Signatures

  • Kinsing

    Kinsing is a loader written in Golang.

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-25_5ef553290eefdf29a58decf9ce6e36b3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-25_5ef553290eefdf29a58decf9ce6e36b3_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:932
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    a9d8979af738ee59daceef5a600bfdc6

    SHA1

    31c9e0f59027e4de4057e7236d6a23beeb222420

    SHA256

    cc869b23c2ac292a3e1cb053d70e46777e0db3791a2dc56dbc9fabb7f351edbe

    SHA512

    6d10769853495eb18bccbed3f69e6a44a1b93de242953a3846ddeaa05191e1adcbc15c146822e51007cd78a8b9c423c55a24f99de21a884dfad37cce6cf85aca

  • memory/932-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/932-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/932-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/2768-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

    Filesize

    24KB

  • memory/2768-23-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB