Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16-04-2024 05:28

General

  • Target

    2024-04-16_f4b91e8754dbd79393aea8e9a2b3018e_cryptolocker.exe

  • Size

    130KB

  • MD5

    f4b91e8754dbd79393aea8e9a2b3018e

  • SHA1

    2412eadbb187f2a2c94df7fc48a10a35e118f7e5

  • SHA256

    d87702c33a27bf106d14df9f1b80ac7d6d2164c36cd97afa42413cb681bc4813

  • SHA512

    30fa64e4ab7b506c4c34e06624bd3818d16c2ea8154c285525bf8bed3644981ab82273213ef04e033bb0d69f62e1457e369685bfe17f30422b9aedd40fc91651

  • SSDEEP

    1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgpwb2C95A:u6a++OtEvwDpj6zw

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\2024-04-16_f4b91e8754dbd79393aea8e9a2b3018e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-16_f4b91e8754dbd79393aea8e9a2b3018e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    130KB

    MD5

    d268e6c72e9933a7d391ff159e2e4731

    SHA1

    007a17fbde5b5bdf6b6e502e679bd37afe2b0d3f

    SHA256

    74cfa2cf3d299f7cbba151655fc57e75156b0a93504a7737cddb70f1ff01f67a

    SHA512

    db43c87fd25b8ebf2a544f76a30a286aeb8a8b3781252080627a1059270f64f17d8ca641942c2b730c81fea293c4da29abe5c3938c392864bf3f5a55f489cd8b

  • memory/1932-22-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2280-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2280-2-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB

  • memory/2280-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB