Analysis

  • max time kernel
    148s
  • 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
    19-09-2024 06:27

General

  • Target

    2024-09-19_7b3c9bfddd1f610667f54eb79e33feb0_cryptolocker.exe

  • Size

    93KB

  • MD5

    7b3c9bfddd1f610667f54eb79e33feb0

  • SHA1

    f392644acd43e1678333c22d20f5608a4b2f17ba

  • SHA256

    e07cdb38265453a55d075b7ae863f1c8cb083d5ad645c17731781b1b46420062

  • SHA512

    a88ce7b6fb3635168e4810103ff9269f61c70dd4c316f0d438cac9c0f013a70faab5352d2ad2657385f293647bb731a75d97db34adc007df5754c30b5715895b

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQNpZYzm:vCjsIOtEvwDpj5H8zPswm

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\2024-09-19_7b3c9bfddd1f610667f54eb79e33feb0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_7b3c9bfddd1f610667f54eb79e33feb0_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3876
    • 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:4100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    93KB

    MD5

    19283bd52451634bca01603e631c638d

    SHA1

    f561d4ffa4692a003d6d521ea90af877236dde2d

    SHA256

    bcbe729f6fedeb60d9ad8a4bc6d70575645eae163b64737e23a91c2b47abeaf5

    SHA512

    5fef5deb865371eb9c77764949c2ec160f298b885ce24e69b0131ba4040c8f08b9aa078f3103de270e7e6f2787823f78507b9a54abfba2897653f0db6b3ddb7f

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3876-0-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/3876-1-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/3876-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/4100-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/4100-23-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB