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Analysis

  • max time kernel
    134s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    25/08/2023, 15:19

General

  • Target

    9a1175d0776fc5bf6f998528db54229d_cryptolocker_JC.exe

  • Size

    113KB

  • MD5

    9a1175d0776fc5bf6f998528db54229d

  • SHA1

    a88c46521909a58061f176ad4740e8cc478f3d82

  • SHA256

    c441ca82de1e7755feabf6a59313365656601716232f091796c3c8598362e27d

  • SHA512

    3397a2c68d0cabff7938e19864cd167cb9cab2141dc43b22064cc67b8f43a3536676bb6bb71283498e864c1c85ea92c1c4403b4f9413c846bdcf4748007aeab0

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNuj2GQi8b/xv4TSeA9+zmnwxPh:V6a+pOtEvwDpjtzO

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a1175d0776fc5bf6f998528db54229d_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\9a1175d0776fc5bf6f998528db54229d_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2616
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    114KB

    MD5

    1ec496bb1686ba2a61589c19036baf8b

    SHA1

    81a3fc684bafdcf3ab981a12dfa3ec92608e9249

    SHA256

    9675d7a7f33fe5f9f5a352fa03d7e9aa3068c63589d3547bfa099aefc9e1995a

    SHA512

    199236f8c737f95f0a0418d9c8970921863a8564f7643ea96e4d879d69dd7ac55218569bf69e75cdf2aad6e5521e4eccec887865230c3b75c39c2ed5e5044e75

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

    Filesize

    114KB

    MD5

    1ec496bb1686ba2a61589c19036baf8b

    SHA1

    81a3fc684bafdcf3ab981a12dfa3ec92608e9249

    SHA256

    9675d7a7f33fe5f9f5a352fa03d7e9aa3068c63589d3547bfa099aefc9e1995a

    SHA512

    199236f8c737f95f0a0418d9c8970921863a8564f7643ea96e4d879d69dd7ac55218569bf69e75cdf2aad6e5521e4eccec887865230c3b75c39c2ed5e5044e75

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

    Filesize

    114KB

    MD5

    1ec496bb1686ba2a61589c19036baf8b

    SHA1

    81a3fc684bafdcf3ab981a12dfa3ec92608e9249

    SHA256

    9675d7a7f33fe5f9f5a352fa03d7e9aa3068c63589d3547bfa099aefc9e1995a

    SHA512

    199236f8c737f95f0a0418d9c8970921863a8564f7643ea96e4d879d69dd7ac55218569bf69e75cdf2aad6e5521e4eccec887865230c3b75c39c2ed5e5044e75

  • memory/2616-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2616-1-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2616-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2988-16-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2988-15-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB