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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2024, 00:43

General

  • Target

    2024-01-26_15ff4caaa5aab79e7b478adbfb343dba_cryptolocker.exe

  • Size

    46KB

  • MD5

    15ff4caaa5aab79e7b478adbfb343dba

  • SHA1

    48e41479bf17d018555d0b248ca9cc682dfe3929

  • SHA256

    76853f3aeea8838c29a807feb94f8ffba9bdef532b0986fae464db548b798bcf

  • SHA512

    38b4267cf79c88ceef85175dfa6f94d1bad0c69c4525654f5bce374029c5d731076d9dafd7b9a294ebed2048729f9d482513fc966a25b6fa97c2641fa15e1358

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hDu:bgGYcA/53GAA6y37nby

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • 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\2024-01-26_15ff4caaa5aab79e7b478adbfb343dba_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-26_15ff4caaa5aab79e7b478adbfb343dba_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    7eef71cf97b1b3fd1ae6fc9f980dd8ea

    SHA1

    7a19d5d30c25bb8ac1b0753497710e97ab1dfde0

    SHA256

    1081a25480f085bf7243860256528e8a35275a95e74e1b52761ec5a05d19f3f5

    SHA512

    288b2716fa4dab82c9af5e6de35c9163b762ada4f07002eba6a4635460e1e361ac28d6cdb14302735e012346be8369bbb2838535879d80c1153f25dabad806ea

  • memory/1888-0-0x0000000000410000-0x0000000000416000-memory.dmp

    Filesize

    24KB

  • memory/1888-1-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/1888-8-0x0000000000410000-0x0000000000416000-memory.dmp

    Filesize

    24KB

  • memory/2004-15-0x00000000003A0000-0x00000000003A6000-memory.dmp

    Filesize

    24KB

  • memory/2004-16-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB