Analysis

  • max time kernel
    90s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 05:24

General

  • Target

    2024-11-20_56d08ce1975eedfdae1e7fd1110155ae_cryptolocker.exe

  • Size

    62KB

  • MD5

    56d08ce1975eedfdae1e7fd1110155ae

  • SHA1

    d4d20fd17398950457c90c5b1a5436a17c7d31fa

  • SHA256

    47013e44aa2d04abbbc26440d1da4bb8fbdf4ec78b5a87a6ee2e6e70f32a734c

  • SHA512

    dc34ad0454cd10fb81feb55c0e2df59fcbe0d578ab88a06333c72acdc9c6f10be890d5fc2645039ffd5768668f9d6aa29aa71764d768a78acb34526749d20376

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ36uc0:ZVxkGOtEvwDpjcaX

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-20_56d08ce1975eedfdae1e7fd1110155ae_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_56d08ce1975eedfdae1e7fd1110155ae_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4880
    • 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:4924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    62KB

    MD5

    677e813119cff9f565be926b540fb9d1

    SHA1

    39a9e8565263d23eefe806f09905df971e1ce556

    SHA256

    6a3b5f42dcc06ec43c3c47e53490a3d205d319a4af173cd93444ca28a19d9d2e

    SHA512

    d3d1f6f29ba79a6f1872f60ce2dab7a5b1b7512444979709214011e5e7284449ddbf4a02c1411f6e06989ce9e20f479c4dfd4482dcf4bb9db2ef93959dd672bb

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4880-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4880-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/4880-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/4880-3-0x0000000002060000-0x0000000002066000-memory.dmp

    Filesize

    24KB

  • memory/4880-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4924-17-0x0000000000450000-0x0000000000460000-memory.dmp

    Filesize

    64KB

  • memory/4924-24-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4924-20-0x0000000002090000-0x0000000002096000-memory.dmp

    Filesize

    24KB