Analysis

  • max time kernel
    0s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    09-01-2024 06:49

General

  • Target

    2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe

  • Size

    34KB

  • MD5

    e4f1aa58cb9e1f2983a8d61241518954

  • SHA1

    b2d32cd642563719da21e4d32bd55513c420aa6a

  • SHA256

    acc2a8b84b261511de247ab64c5c1242fcbf5102f8dc9128a3cde0d71c570aac

  • SHA512

    793505a3b2f781b38fef9b1d68b4efe0b829e4fc88a45b4ad308a97051e37d4465145c240448a3dc531d8ab95f7fb547c189de245e1ab04ab239e5e185007d4f

  • SSDEEP

    384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0J5+:btB9g/WItCSsAGjX7e9NQM

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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-08_e4f1aa58cb9e1f2983a8d61241518954_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2824
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    34KB

    MD5

    0b82d32126e566d026353be4fd8aecc3

    SHA1

    a71c7ff37d4513008d203533f29205d6aeeef556

    SHA256

    36eb2755a70b7c4943e3ec625c3db2bc8b4422cde47fed1dde92db1e6de6defb

    SHA512

    528fbc6c6f8209f8ced2f272b53785fc1f8969dc07e7845cc7a1e8f85d625e22c41e688c3055567f3ca2ee3e00576f8a3720f5077150fd797e2a9208aaecfb53

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

    Filesize

    14KB

    MD5

    c4aa11d71ea3db2a16a9ba8bbce89787

    SHA1

    ef9eb8f9f1835fd7c043e78be834812bfca7a573

    SHA256

    8c502137c0011f59c5f3781992c50b1ad458babab2473c34473fdcabb77cf2c3

    SHA512

    cd7886f4077e6d801f340bb0143153fd29f557255a1fff7267a028bb0b989c497a815c69f9711d76013c441e515fff691ef96db53f4eedfaa240587b77944275

  • memory/2160-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2824-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2824-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2824-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB