Analysis

  • max time kernel
    39s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 16:21

General

  • Target

    683c2f4fb35b2f3dd89ccbf827e9669df84cb56bfed7de5ef6ca3d857da37c91.dll

  • Size

    491KB

  • MD5

    58cef722a55cc401496dcdcd8a1989bf

  • SHA1

    611c9a910e0ae8c6942b1110a1ba0632b281c844

  • SHA256

    683c2f4fb35b2f3dd89ccbf827e9669df84cb56bfed7de5ef6ca3d857da37c91

  • SHA512

    01552687619c8c4e9ae1bbe57c228946cac3c445ca10b4e48a777baddf4bacc48d87ece032b597a08b9ba103a63f61be2fcbfcd1e263591e77f4bdbbf78aefc8

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDK:o6C5AXbMn7UI1FoV2gwTBlrIckPk

Score
10/10

Malware Config

Signatures

  • Yunsip

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

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\683c2f4fb35b2f3dd89ccbf827e9669df84cb56bfed7de5ef6ca3d857da37c91.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\683c2f4fb35b2f3dd89ccbf827e9669df84cb56bfed7de5ef6ca3d857da37c91.dll,#1
      2⤵
        PID:1536

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1536-55-0x00000000768A1000-0x00000000768A3000-memory.dmp

      Filesize

      8KB