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Resubmissions

31/03/2024, 18:59

240331-xnh6nshc9x 3

24/08/2023, 18:04

230824-wnp4jsee63 10

Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/08/2023, 18:04

General

  • Target

    Karlson.exe

  • Size

    635KB

  • MD5

    883bffe32454c48a5881ece54d4b5b3c

  • SHA1

    fd1b54f0104ee4b41484fd61834dac685ec71c18

  • SHA256

    b220af136b7ca77b63be6614d19fad59b2321e422e16bc5114ee92a4d8a2bf46

  • SHA512

    4e0d662b1dedff6b493126443b6c23cd84bb143cdbb367f05d236e154af6fdcbca2cc12b86def40ca010f5088d35ffd3e48e9302dd62f9fbfb9e702a97363c5e

  • SSDEEP

    12288:57qTU6jXQDBJXDjBY07AYMMMMMFE3K/qO8:RqRjXMBJXDjBY07/MMMMMi+qO8

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Modifies registry class 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Karlson.exe
    "C:\Users\Admin\AppData\Local\Temp\Karlson.exe"
    1⤵
      PID:4332
    • C:\Windows\system32\SystemPropertiesPerformance.exe
      "C:\Windows\system32\SystemPropertiesPerformance.exe"
      1⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      PID:1792
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:3208
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        1⤵
        • Modifies registry class
        PID:4496

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads