Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11-05-2024 06:36

General

  • Target

    2024-05-11_b175a310c786b0390d0047e7a87c8346_cryptolocker.exe

  • Size

    34KB

  • MD5

    b175a310c786b0390d0047e7a87c8346

  • SHA1

    07103c53cc5d900b19e49619379e7b04b968b8a0

  • SHA256

    6ce414d24bb5409a7779824044a7599bed9d294df9d3d43edc25902b6efe9fe1

  • SHA512

    7a07e7d632316cd5a38c8d7a48de6371d4d4919e7c138a1513d030a878e7c4502f4eef893e6ff84a1b0bdbd389ac5f07abe445cc92f1ed116f88a2b7e93002af

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5M4y6:bxNrC7kYo1Fxf2rYA76

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-11_b175a310c786b0390d0047e7a87c8346_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-11_b175a310c786b0390d0047e7a87c8346_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3024

Network

  • flag-us
    DNS
    el-padrino.com
    pissa.exe
    Remote address:
    8.8.8.8:53
    Request
    el-padrino.com
    IN A
    Response
    el-padrino.com
    IN A
    154.215.77.110
  • flag-hk
    GET
    https://el-padrino.com/elpatio/rch.exe
    pissa.exe
    Remote address:
    154.215.77.110:443
    Request
    GET /elpatio/rch.exe HTTP/1.1
    Accept: text/*, application/*
    User-Agent: Updates downloader
    Host: el-padrino.com
    Cache-Control: no-cache
    Response
    HTTP/1.1 404 Not Found
    Date: Sat, 11 May 2024 06:36:37 GMT
    Server: Apache
    Content-Length: 261
    Connection: close
    Content-Type: text/html; charset=iso-8859-1
  • 154.215.77.110:443
    https://el-padrino.com/elpatio/rch.exe
    tls, http
    pissa.exe
    1.1kB
    4.1kB
    12
    10

    HTTP Request

    GET https://el-padrino.com/elpatio/rch.exe

    HTTP Response

    404
  • 8.8.8.8:53
    el-padrino.com
    dns
    pissa.exe
    60 B
    76 B
    1
    1

    DNS Request

    el-padrino.com

    DNS Response

    154.215.77.110

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    34KB

    MD5

    4cced8872543bc6f3546364cef69ea69

    SHA1

    704db712bfd35587c9e515bd59a2caee54976a66

    SHA256

    0ed4cb82166607c043ac05e674295499dbd5d315dd7cefe92da36146e0708bff

    SHA512

    195d943e8fb1609261b27f2f630a93606cdc9d15620d858e990494554beb4b2b53fdebbac00d5d32bcf6a56b1d5e2317c3a23c23984feb2e19d6c755cfd7f443

  • memory/1688-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/1688-1-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/1688-8-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/3024-15-0x0000000002920000-0x0000000002926000-memory.dmp

    Filesize

    24KB

  • memory/3024-22-0x0000000001C40000-0x0000000001C46000-memory.dmp

    Filesize

    24KB

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