Analysis

  • max time kernel
    92s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2024, 07:22

General

  • Target

    2024-09-29_4bcbb5d91ce827500bdcfa845040cd3d_cryptolocker.exe

  • Size

    96KB

  • MD5

    4bcbb5d91ce827500bdcfa845040cd3d

  • SHA1

    9eb505555c40fff6b21fa534bf4140f335fc6a92

  • SHA256

    d5529fe69e5e07a0924b2754ffbfa40a76e3c093f0fe28d9f95762dbe0c2745e

  • SHA512

    41923800596c0c145567f4828a0fc51f1f9faa35c11c6668f343b1ab74f5f685f8a2060f889c684255696b1cad415ee8a21fdefaea78e64835334df5ce47a866

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRiWCCy9lI6T7:i5nkFGMOtEvwDpjNbwQEIieqt

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\2024-09-29_4bcbb5d91ce827500bdcfa845040cd3d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-29_4bcbb5d91ce827500bdcfa845040cd3d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4820
    • 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:2608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    96KB

    MD5

    480bce25ac5045503e20f5ba38d8aeb0

    SHA1

    e6eac115561f16d93ade88df04069ced7709507d

    SHA256

    497cf8afcb7bc1a726429d1f6ba6311f459468934b63af926136b4bb449d8e63

    SHA512

    d3f3806028731e71ac5f6028fd7a5be02ffb60b972f284850a52fc3ad25b84ff1fcb42d99a7049a14eb1ebde5f1754ff0f8600539c12a50f8c45620d0b199cff

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2608-20-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/2608-26-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2608-49-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4820-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4820-1-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/4820-2-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/4820-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/4820-19-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB