Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 03:37

General

  • Target

    2024-10-03_fa5460e69ea3eb4b154e00aaf9d7b86a_cryptolocker.exe

  • Size

    47KB

  • MD5

    fa5460e69ea3eb4b154e00aaf9d7b86a

  • SHA1

    34d1085052011b9736fef1ad4da815ddea8626ba

  • SHA256

    accefdcc7993890b620d57ed49e8e829160a8b1b6fa20401d9901178d061bab0

  • SHA512

    7bc80942f4f7d42c626fcf8b95da5be41c736b05d9e58ebafa46111b52426996ad4861169a9df86fd18d51d3f3b9d6048331019fc12773067cf94a4b74558aa1

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDhkJlX:6j+1NMOtEvwDpjrRraJt

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\2024-10-03_fa5460e69ea3eb4b154e00aaf9d7b86a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-03_fa5460e69ea3eb4b154e00aaf9d7b86a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1396
    • 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:4176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    2f452c4778ffcc71c3852a7528ffeda3

    SHA1

    760b23a33fd46b4b5d776036a7671988bf7dc49d

    SHA256

    e9b35e02f20b9a1259577b56b743d3a4c3409452ffd54d432708aec5b3bdaf81

    SHA512

    767ab4f5ff3a9f0de348d116ae7a26e1fd958d60d1a5cd81d50bc303e00b1d656fda8b609c29cc044f6e6f5f339b24c9a2f0ae96593d3c3b0940131ff2a7c427

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1396-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1396-1-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/1396-3-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/1396-2-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/1396-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4176-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4176-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4176-48-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB