Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 21:54

General

  • Target

    4e56cf37c86eda556aa260fd11f073eadc9d13ced210d647700be5c6b7cfb6f6.exe

  • Size

    80KB

  • MD5

    1b8540e5d69cd58496f21b6235cb5c4a

  • SHA1

    b5990def936d927b6b60fd41abe00e1d18729001

  • SHA256

    4e56cf37c86eda556aa260fd11f073eadc9d13ced210d647700be5c6b7cfb6f6

  • SHA512

    af80f33f4b97660f6dbc900696a8c4e739c3d6f66922a0dcdbe2e6db0beb313a3d4099759183a2978488eeafd68a405dc3cff4a2ea22347d3bc7f7ac1af18df6

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxB1yO:T6a+rdOOtEvwDpjNtHPg

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 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\4e56cf37c86eda556aa260fd11f073eadc9d13ced210d647700be5c6b7cfb6f6.exe
    "C:\Users\Admin\AppData\Local\Temp\4e56cf37c86eda556aa260fd11f073eadc9d13ced210d647700be5c6b7cfb6f6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2200

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          80KB

          MD5

          dfd0660b9991935fd37380c38bb10067

          SHA1

          4704f02344aeb8ae9c88b30e5d1a25625d0c24f3

          SHA256

          e3e8a3c5f99fbe95e93f1fbd2eb69e4100659393b5033ae2b332ace67f9ec934

          SHA512

          640e29f74ce0514342a3a09180961c238764750e8b8530bac93f62ee38ce3c1311c0dbe474210fce842c6bc02c4394717e963f6eb7de1c509944cd2b8c136343

        • memory/2028-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2028-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2028-8-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2028-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/2200-15-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2200-24-0x0000000000250000-0x0000000000256000-memory.dmp

          Filesize

          24KB

        • memory/2200-25-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB