Analysis

  • max time kernel
    93s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2025, 06:47

General

  • Target
    63c0580b4a6f4faef4c59ca698367aae1550d710aab6587433a334bac1aeb644.dll
  • Size 1.1MB
  • Sample250102-hj919synbw
  • SHA256 63c0580b4a6f4faef4c59ca698367aae1550d710aab6587433a334bac1aeb644
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Yunsip

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

  • Yunsip family
  • 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\63c0580b4a6f4faef4c59ca698367aae1550d710aab6587433a334bac1aeb644.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\63c0580b4a6f4faef4c59ca698367aae1550d710aab6587433a334bac1aeb644.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2836

Network

        MITRE ATT&CK Enterprise v15

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        Downloads