Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2024 04:52

General

  • Target

    513902e20ce6e1241c81091c066778d0N.dll

  • Size

    1.2MB

  • MD5

    513902e20ce6e1241c81091c066778d0

  • SHA1

    4379dfae7e09ee0938aef9df2810e236d78e11cf

  • SHA256

    0aa92ab5d98196717573c7e6eae000bf316fe3f2c276561e7b45772aa8230d33

  • SHA512

    0406576841befb02d8e4b2a42675cb8879a491ee41b749e047661a7e8cfc880ab1253b4580e6db7884926b6aadc40824ba46db3c01f91c3118c2c9eeb0577848

  • SSDEEP

    12288:jDgN6MoIwT3qOOOOOOOOOOOOOOOOOOOOOOE:jTtT3qOOOOOOOOOOOOOOOOOOOOOOE

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\513902e20ce6e1241c81091c066778d0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\513902e20ce6e1241c81091c066778d0N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2456

Network

MITRE ATT&CK Enterprise v15

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Downloads