Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    12-02-2024 20:20

General

  • Target

    2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe

  • Size

    384KB

  • MD5

    cd7a4d8eba70116ad4d659bd1827f3c9

  • SHA1

    3ef86bb1120dbddaec18f56b7a865fed85aba7ae

  • SHA256

    8e6fcdd8746fb5ab896ace8de5a7580648da93c482c857c4777480f04bd4d921

  • SHA512

    a1b34a53799b492dd914cb51ad2f722c66ed00ab46f75285ee9d330b5b168b4a5465bb7d758b8d58957a5c8b1f060ec1b1c4037fbbca99f9f6d99ac667837628

  • SSDEEP

    6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXE:nnOflT/ZFIjBz3xjTxynGUOUhXE

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-12_cd7a4d8eba70116ad4d659bd1827f3c9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    385KB

    MD5

    f63858779e4b7ee820d6803b47c96a67

    SHA1

    368de4ad177a48bc1c551d592933cc8deac04cdd

    SHA256

    60028602bd7b7fc86e63401a36adc0fab4b57b3a2c5b6f630951808950d9273a

    SHA512

    a10a090a66151b14ef39c6618e8e3f1e3c76ec09131d4c2914a326ff61bb4b4f075228e3fa5fda9e203963990b3674b20ac0c1713d93825b56e202ae1d298b22

  • memory/2044-0-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2044-1-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/2044-3-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2508-15-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2508-17-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB