Analysis

  • max time kernel
    69s
  • max time network
    70s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-08-2024 08:42

General

  • Target

    5817c117042b344525e86cba96310090N.dll

  • Size

    695KB

  • MD5

    5817c117042b344525e86cba96310090

  • SHA1

    e702640de13cc3d8281715ba3c40a6759f696bbb

  • SHA256

    ea68d73867361ac96eec2924ef117605c8ab2569816cf3bdb71bf2718de1dd61

  • SHA512

    787e0899d78b75f50ab920cee3ccc1b25c030e9eb1cee197e6092169f3ad1786f46ea6ad58bf013a95cdebdd22dcd3b32738f7adc94bfc40768580de2abbf330

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYH:o6RI1Fo/wT3cJYYYYYYYYYYYYH

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\5817c117042b344525e86cba96310090N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3876
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5817c117042b344525e86cba96310090N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4452

Network

MITRE ATT&CK Enterprise v15

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Downloads