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
    27/05/2024, 18:30

General

  • Target

    2024-05-27_55a0b40c22a95eac0dbff8795ed8fc74_cryptolocker.exe

  • Size

    38KB

  • MD5

    55a0b40c22a95eac0dbff8795ed8fc74

  • SHA1

    53c27d79eea6cf800809376a4f62b0e0d4b7d218

  • SHA256

    c89ca41e31e7a575c6ffa74026799ee5f1dd64e2a03beae1402f62a7de7f9471

  • SHA512

    2ab91de710533613f27c830b0b05f232bf60afa313ecb1cec595613ee1186304e1c092f72efe5377a7835157eba55f79a4dce823d9aab0ffae7efc4a5c6f6164

  • SSDEEP

    768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mhl:bc/y2lLRU6zA6qz

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-27_55a0b40c22a95eac0dbff8795ed8fc74_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-27_55a0b40c22a95eac0dbff8795ed8fc74_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2536

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

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

          Filesize

          39KB

          MD5

          ef030987595a2209bec02017a2744e52

          SHA1

          43ef072e3ec02bb6781ac2e28cc89db78486983f

          SHA256

          b28a58aca338fbebdf38af4b8968227781e98ebaaadad0f586858e6a1bd1b444

          SHA512

          03a29b5b465470bffc90df171290b3d5f5f4b4e8e204e1eabb4670381b6f8c08153a15a12dbdee850e836ecb55dd0827b4086d3a50b0e839f02bd81e309251df

        • memory/2536-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/2864-0-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/2864-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/2864-13-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB