Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2024, 19:52

General

  • Target

    2024-05-26_8f0948cfe44ecc3a24d6c254226c0c67_cryptolocker.exe

  • Size

    40KB

  • MD5

    8f0948cfe44ecc3a24d6c254226c0c67

  • SHA1

    c4f0d4792a2d1c01e99468f3ca24272feeb05e68

  • SHA256

    41efc316e257c154c2dc2fbcbbcdeae6f42517a22e9a8b80da3aaaad003f046f

  • SHA512

    f12e944385d7772482728fc006391964e52a172e34caebe9a69902d18b31157b0b5403edf1bf4854d1733b70857e93a47a3db1a2c4cbf682387a6577bcc7ff48

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYF:qDdFJy3QMOtEvwDpjjWMl7TY

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\2024-05-26_8f0948cfe44ecc3a24d6c254226c0c67_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-26_8f0948cfe44ecc3a24d6c254226c0c67_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    62e7875d1468185f1460ee367284ca05

    SHA1

    c39cf5394e8a67cf47d36b85b6812643f9be503e

    SHA256

    6b1001886797ec1dbf6ee5920fab129096a2db19f2e2b558aba00292d1d6b654

    SHA512

    38d0f207d7b5d2d7c2fe832eeb24a88d28cd823da84c8747ce34393a0f568255c943bddab33aaa9d6fad3629d11784b78f7e9e849aa382441294a42b3aba0415

  • memory/2812-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2812-18-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/2812-25-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3016-1-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/3016-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/3016-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/3016-8-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB