Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 19:51

General

  • Target

    a475643ae0019663b03f7bd77ca32fa513a901d220d8ac98f47deb6dd23ae3ecN.dll

  • Size

    686KB

  • MD5

    b11bdefe1a91e9408c77bb72123c7c60

  • SHA1

    0749fae93277b0d0cd892633d57667ca2924a413

  • SHA256

    a475643ae0019663b03f7bd77ca32fa513a901d220d8ac98f47deb6dd23ae3ec

  • SHA512

    cd179068c5d0bd48b01e1cb9db9e810600607cfa90b017ed77e34fbbd2bf88a628fd368545abddac7b123a969422235dde8b7a879a9c606fba107f2342f8a252

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYk:o6RI1Fo/wT3cJYYYYYYYYYYYYk

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\a475643ae0019663b03f7bd77ca32fa513a901d220d8ac98f47deb6dd23ae3ecN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3312
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a475643ae0019663b03f7bd77ca32fa513a901d220d8ac98f47deb6dd23ae3ecN.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4840

Network

MITRE ATT&CK Enterprise v15

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Downloads