Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    07/06/2024, 16:31

General

  • Target

    2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe

  • Size

    81KB

  • MD5

    14200b1e1f17abe5c85ac1cae3d31768

  • SHA1

    968016803046e0c007b1a2e60418ff5a72ee73c9

  • SHA256

    bf3fe4a3db6ac1b4a633bdbc7929b8cc56359ababd98dba3446c2167a7e56864

  • SHA512

    8ac69483bb61b5739798bcc00556e21205d9aad27d10dbb5fcaf73d8289bee3b272462d45087b04762630a0562dad8af2c17028f31f4279577d0a25b9e114ced

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdI:T6a+rdOOtEvwDpjNta

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\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1696

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          81KB

          MD5

          1078f5062e58d12161fe32e5fcaa80e5

          SHA1

          97d5e36d79543c427ada273817c6020743815b84

          SHA256

          e95a6d9308fe20c680281b2adbeff02b752f32f4fe286d2cd73486b939f7607e

          SHA512

          420c8262cfaf04ab73fbf2da31edb76af1ef438637e5c6d3d03e36fde95020678634be7193910902f6770a81e6b7e88156b9aa92ab3ba2b7a5027cb76b2f96d9

        • memory/1696-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1696-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2760-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2760-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2760-2-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2760-3-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/2760-13-0x0000000000570000-0x0000000000580000-memory.dmp

          Filesize

          64KB

        • memory/2760-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB