Analysis

  • max time kernel
    150s
  • 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, 02:47

General

  • Target

    2024-11-20_4a1fd81140760a9b205c07cd0fe7a14c_cryptolocker.exe

  • Size

    52KB

  • MD5

    4a1fd81140760a9b205c07cd0fe7a14c

  • SHA1

    04965571397c4591769a576d11d76c0af9e67cea

  • SHA256

    1142460b5d04e997edb57d9e5244d019fd44118facb16ddb8dda5509f0456cee

  • SHA512

    e3295dc35fbefdf0a60aa8b5994d494aebded554564fc11f86e2f484486e1ed709727303fd6d1a580909aad12a15785dac80dcce839029aa696d05186a1c9b0c

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0ntg/:vj+jsMQMOtEvwDpj5HczerLO04BZ/

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\2024-11-20_4a1fd81140760a9b205c07cd0fe7a14c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_4a1fd81140760a9b205c07cd0fe7a14c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2664
    • 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:1212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    53KB

    MD5

    87cf620dfd5135b94e45567850b57f40

    SHA1

    581864f9bac1755d0017333559a44045bf0f0cca

    SHA256

    425c3b4f96142aa18b18c5b1ec9b052e9efb111fd244eb26ab1debf65d9e04f8

    SHA512

    dfa8c97f88f9cc903fdf5240b435771a2b460bd73bf435c62274ad30bfe1e675ddb377494d93232e6f2d4f1235bd879ba15e79063e9e128717f1b50f9d7df9b2

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1212-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/1212-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2664-0-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/2664-1-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/2664-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB