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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/02/2024, 01:31

General

  • Target

    2024-02-28_3f1028574053a921b6ca35c2627b1c09_cryptolocker.exe

  • Size

    137KB

  • MD5

    3f1028574053a921b6ca35c2627b1c09

  • SHA1

    a220d9dcb3d4c4d46dcd3410105ce6cbaa169926

  • SHA256

    172e0f8ee79629305dd286167820f06c7fb5e092da7db842581066ec115d4e92

  • SHA512

    a8368515c11a7409f622ea3b33e0c5ebf20f440f69380320ea2826bda4438f10208ffe9952266edd74ece32f10fcf7842a1613c451f41dd94bafd97d8fba2a9a

  • SSDEEP

    1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgpwqWsviy6ixHL:u6a++OtEvwDpj6z4

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-02-28_3f1028574053a921b6ca35c2627b1c09_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-28_3f1028574053a921b6ca35c2627b1c09_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    137KB

    MD5

    6e7d9678cba5ec6940d25e77fe327712

    SHA1

    de299ad2068d347711d9e1448b9ac7786aee7a18

    SHA256

    eaeac1054bb2308aeb1fa38e274b38a274e9f692991625b95d3b7e2acfe2e325

    SHA512

    40e14858f9d7c4f48fd1a3d5688e857fe68e0a74c75037d9889d895ff0b6ee9d9cd14ff08ef47f219f09ff0d133108ae1403335bfbaf85b8db9312f7bf5841d0

  • memory/1484-0-0x0000000000440000-0x0000000000446000-memory.dmp

    Filesize

    24KB

  • memory/1484-1-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/1484-3-0x0000000000440000-0x0000000000446000-memory.dmp

    Filesize

    24KB

  • memory/2900-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2900-16-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB