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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/03/2024, 00:28

General

  • Target

    2024-03-14_2b6ad7edba6c3d6a9eaa445141d26903_cryptolocker.exe

  • Size

    83KB

  • MD5

    2b6ad7edba6c3d6a9eaa445141d26903

  • SHA1

    d6080830b17b44eb7f16f3c86640b985a3808f1a

  • SHA256

    544a39ed05208387d1864902a5679f493cd3d188308d690ffa3249fd117e52ec

  • SHA512

    1de6d33b469b3e625b98f4d6cab5388a8cb606f0c5df37355e90fa37dca233412fd9e23726770448988c1636c14d198eadf479e35982ca0925956e294488a4fb

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1kyJS1na:zCsanOtEvwDpjk

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • 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).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-14_2b6ad7edba6c3d6a9eaa445141d26903_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-14_2b6ad7edba6c3d6a9eaa445141d26903_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2848
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    83KB

    MD5

    52e2a820c2ee578cd284a410abf3d401

    SHA1

    0479232463cbeb94350eee99598fecbe548e7c02

    SHA256

    efea4cba372784664fddcd0603cf7e358430c4c2e7f6a591a73e8f78644d19b6

    SHA512

    67240eb8c53a31a84ff11c200f7ddc341b118dc747b8f55e43379d4f262ebec75f0f880bbcd2921fbb05710908c2f70e810627974fa8f333062c72640cdb7952

  • memory/2540-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2540-19-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2540-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2848-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2848-1-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2848-2-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2848-3-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/2848-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2848-16-0x0000000000650000-0x0000000000660000-memory.dmp

    Filesize

    64KB