Analysis

  • max time kernel
    114s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 17:10

General

  • Target

    759082c0631e1ba2078a3b85501565a0N.dll

  • Size

    1.1MB

  • MD5

    759082c0631e1ba2078a3b85501565a0

  • SHA1

    86dfa5c7a5d5e3e4257d36ec0a925c7944fda024

  • SHA256

    fbc0fe4b72f946aa65e886a445205ed9f553e32b658bb91020e42f83573f7d30

  • SHA512

    e6c373581b4e50fa0cc48a36cb38ffd05b7a8f7210e2c16185d7e7a1a60da405b9d4e18bc8cbaed61948b1b0ae14685ccc18a2c797970bf05eaa35828cb30677

  • SSDEEP

    12288:jDgN6MoIwT3qOOOOOOOOOOOOOOOOOOOOOOU:jTtT3qOOOOOOOOOOOOOOOOOOOOOOU

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\759082c0631e1ba2078a3b85501565a0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\759082c0631e1ba2078a3b85501565a0N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3804

Network

MITRE ATT&CK Enterprise v15

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Downloads