Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 21:41

General

  • Target

    2024-06-10_d3c2c74b97abb84ad66f2b6fbd21012a_cryptolocker.exe

  • Size

    80KB

  • MD5

    d3c2c74b97abb84ad66f2b6fbd21012a

  • SHA1

    6285be851df8afc7070c6833ed73187fa01326fa

  • SHA256

    ae4874c36d7efe3ca054ae6cbbcc7c3725fe9aa8c3a76e113edce4d46585d0fd

  • SHA512

    a93a0d2f3d9b1275d8b104e6b180065e8294b9597871a532fe36b947e40ff5c2c351f5ab66b53acbd121aef014878f8b04a2fa45e1c50073982d3656cb004913

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdJcRhX:T6a+rdOOtEvwDpjNts

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-06-10_d3c2c74b97abb84ad66f2b6fbd21012a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_d3c2c74b97abb84ad66f2b6fbd21012a_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2068

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          80KB

          MD5

          2a17664ae543d63eccdcd70ddb2ba347

          SHA1

          cf3ef05e703b0f648b099d017babd376a66ac711

          SHA256

          abd869a36a7c4b5f81ccfa82646b9f4107eae7032466eedd9f614528c88d822c

          SHA512

          311c2cb3ed7ac16849d222de7b8bc39a73fda51019ea2c934f53925931dec9143576a67bb6299db5a5f4925c667df1f2c85d227cb97322b74b63570a2c4beb0b

        • memory/1700-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1700-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1700-2-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/1700-9-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1700-15-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2068-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2068-18-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/2068-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2068-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB