Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    27-04-2024 05:18

General

  • Target

    2024-04-27_e69528f772b5dad2626523257bfbd8fb_cryptolocker.exe

  • Size

    58KB

  • MD5

    e69528f772b5dad2626523257bfbd8fb

  • SHA1

    32a5e7b77feaa6904b6b8ddaf39250d706af81a7

  • SHA256

    c78dc86e837bd2fa7dd104e18890ce86c8c2e20d3421b2e4e3bc516be4e18075

  • SHA512

    812a7cfea7f295a99bb5bf0b56d4ab69b3da60767a70326778441ee781a0cbf8ccfa98ed1b05f74f8b4b8e4a988e556b2fc57841532df019194bd56525486bba

  • SSDEEP

    768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAPb:H6QFElP6n+gou9cvMOtEvwDpjCpVXO

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\2024-04-27_e69528f772b5dad2626523257bfbd8fb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-27_e69528f772b5dad2626523257bfbd8fb_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    58KB

    MD5

    46ad6d8e32d3ffc74f2d698a20b89b3a

    SHA1

    b17f5893503dfe3613491a5941fd5cb5cfc5dffd

    SHA256

    9025a657cf62e010da2784cb29728d98d403e1d59f27a9360315536dc8b198be

    SHA512

    9fd0db3cf67d960ea2bef25dabfbf9d7c0cd71c7195d87b32f769f36c4e2b97dfe9c5770f4576708a17831342fe5927c71788115849a6d92e42e65f8002e0eaf

  • memory/2144-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2144-18-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2144-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2144-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2372-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2372-1-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2372-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/2372-9-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2372-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB