Analysis

  • max time kernel
    94s
  • 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
    17-12-2024 05:20

General

  • Target

    39552490faeec163960e03559ea56fad385e1ae45293260f097cbee976d065baN.dll

  • Size

    1.0MB

  • MD5

    0540a2ef4b069f38fb9888ccab374e10

  • SHA1

    c57e533e0d509f992e50029a7283a5e704659c51

  • SHA256

    39552490faeec163960e03559ea56fad385e1ae45293260f097cbee976d065ba

  • SHA512

    60c5df26c33d7566872f8c30c68c1bc0a724a252dedb943df428955ab1ae95764c3ebd864e1ffbeed522afd1ced0f9b4d22db9f8f6f425103163342b41215e60

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDW:o6C5AXbMn7UI1FoV2gwTBlrIckPc

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\39552490faeec163960e03559ea56fad385e1ae45293260f097cbee976d065baN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4696
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\39552490faeec163960e03559ea56fad385e1ae45293260f097cbee976d065baN.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1072

Network

MITRE ATT&CK Enterprise v15

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Downloads