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Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    02/09/2024, 23:54

General

  • Target

    2024-09-02_b5ea1df9ac47e25fa837e56be0cdf577_cryptolocker.exe

  • Size

    39KB

  • MD5

    b5ea1df9ac47e25fa837e56be0cdf577

  • SHA1

    6811bedb0dc808e0fb255b338bd1a2c3d5123973

  • SHA256

    ec95a562c9000808f82ec4b93d3aee40ce1f30dc74d8f28b6bfbd801301b7c06

  • SHA512

    7fc93eb994eba297e5bcf4bffdd6365d8fe01569142521651371d98cb499281ea5b133b910ab445bc20bdcddf1f5dd6b6017e2e1fc34e0d61ba61c41eaa352b6

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITi:qDdFJy3QMOtEvwDpjjWMl7Ti

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-02_b5ea1df9ac47e25fa837e56be0cdf577_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-02_b5ea1df9ac47e25fa837e56be0cdf577_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2404
    • 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:2348

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    f6ef1d5202e8ff7f8eb48761fa0fec43

    SHA1

    8bbb1b98432d94579c5365e8ffe0f21729663234

    SHA256

    a7f498a2da13b4b3b60c470fa2e1d04c73d1dd3f88ddbfd4f3824737e8068d73

    SHA512

    53a1659eb0b7b9f147476a45c43a7b4344933614347c745489be4844c28fadceb946013438c498b790f19c3079f61e6f55a5cefc6bc89c54e750924a41202048

  • memory/2348-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2348-20-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB

  • memory/2348-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2404-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2404-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2404-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2404-3-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2404-14-0x0000000001D60000-0x0000000001D70000-memory.dmp

    Filesize

    64KB

  • memory/2404-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB