Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    13-06-2024 03:31

General

  • Target

    2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_cryptolocker.exe

  • Size

    49KB

  • MD5

    3fd61b31baa1af575b0a5ad9d014cda5

  • SHA1

    97cdede891cd87abfb8fc7c681fdba2a87794c17

  • SHA256

    439758450f01d706be42f700251f74cf7d9afa81282c6c81a734cea6e0b2f8b4

  • SHA512

    c40314de5f4234eb3c952655b6c37b9bcc975f61c07ee91a9f684c98003c43511d44569fc9b93a47a73ecf5fac9f170cbcf9379cbb5ba8cb9ceafc84c3075f84

  • SSDEEP

    768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkcc1o:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfL

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    4690cce6e4a9aaf1c6619ecdac12dd99

    SHA1

    fd4e5402de2d97fe2c8a185f18760a9b398e070e

    SHA256

    56df8b1101eb19da8fc7afeb732c99dd16b982c54332819e8db142861a7fa577

    SHA512

    76d51a0e39cde24aef3622e4fe2a48dd6025fc6f33adfe35591de6e22d7acea3070a91112f8287115db20e8278c6a8c6e5767aaedc6636d43bfb12b708013f00

  • memory/1152-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/1152-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/1152-8-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/1152-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1152-14-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2144-16-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2144-18-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2144-25-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2144-26-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB