Analysis

  • max time kernel
    149s
  • 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
    05-10-2024 05:44

General

  • Target

    2024-10-05_bdd5a6188f6132a41a23c83f9d3e534a_cryptolocker.exe

  • Size

    47KB

  • MD5

    bdd5a6188f6132a41a23c83f9d3e534a

  • SHA1

    5030f76dc6d6054487b4de580f79b34d053cef19

  • SHA256

    5d181e6dd4f3296c1e498bb92613eba7618da29c4c461c1e86b1b3150e9183cb

  • SHA512

    a263d57190155e5a2cf749b46f656e58e47a1af9c2547921da99cd56ab3b965c8a208c9bcad09e10500906b427388f64abe0f41f1e6417c88aeb0a1692776e21

  • SSDEEP

    768:26LsoVEeegiZPvEhHSP+gDdQtOOtEvwDpjtMLZdzuqpXsiE8Wq/DpkITi:26Q0ElP6G+gBQMOtEvwDpjgWMl7Ti

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-05_bdd5a6188f6132a41a23c83f9d3e534a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-05_bdd5a6188f6132a41a23c83f9d3e534a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    3cf420dcd22356ac4d3f1a4149fa4582

    SHA1

    1d64bc0ebb20efa490912a9bdeb7250612e80f41

    SHA256

    d6bca4c37ee91b3598012ee2800be2b41c65524faafef562b8c09103b77cf53e

    SHA512

    b96f2bd9dcddaef50ee348867dba04715e732f93ffa07e06d382ff0d61efe1b8188a044bcce0e3b3188cef7c92a284e5c6a85c299a6b31807d86b5db2561afb4

  • memory/1940-20-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/1940-19-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/1940-26-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2088-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2088-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/2088-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/2088-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/2088-18-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB