Analysis

  • max time kernel
    95s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 20:44

General

  • Target

    2024-10-05_161e766353dbfec9ea1ea28a891d687e_cryptolocker.exe

  • Size

    39KB

  • MD5

    161e766353dbfec9ea1ea28a891d687e

  • SHA1

    7beb7a988d56d0a6f850b19d1137d1b78d714b37

  • SHA256

    904326649fec6ddcd053135a6146b7f8c03a20c273a86d4f0d89597391af8105

  • SHA512

    372de62e78701df8f62c4cf45952bda37b0a366b70d322de2eafddcd39c0bf209e058a370f29b63783da97c0234c205dea9995bcafce7daae185c53ad276e539

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66X:vj+jsMQMOtEvwDpj5HW5w

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\2024-10-05_161e766353dbfec9ea1ea28a891d687e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-05_161e766353dbfec9ea1ea28a891d687e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:644
    • 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:4028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    a39c9a456d15374136aec0e7970615cb

    SHA1

    2976e8d77aa6e9c39819e91f78d42e6250b8ffa4

    SHA256

    39fcf5c0c4ec78458b5edd01d25a75d9ded1c3de76253c4bb2e4569a72e0a110

    SHA512

    ccfcbe18ea3fcd989e3fa790218fa7fb9c0e92eb55c250d0a1ca92071279873480369e6534eae0032b6978bd5f87b891b84cc02a5b536633e5e0d19e88bd8b75

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/644-0-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/644-1-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/644-2-0x0000000002180000-0x0000000002186000-memory.dmp

    Filesize

    24KB

  • memory/4028-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4028-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB