Analysis

  • max time kernel
    1s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2022 04:31

General

  • Target

    82c8fac397267d1a97e1fd971a53466a6b4fdd5b0bd692b31a6d648170594a3a.dll

  • Size

    490KB

  • MD5

    082cda4326bb408d97c656c413a36910

  • SHA1

    b755a9bc2b8246485e9f20bb65452d27d0d91916

  • SHA256

    82c8fac397267d1a97e1fd971a53466a6b4fdd5b0bd692b31a6d648170594a3a

  • SHA512

    fd5ab50aed4ea2de35930a6eef5f48b5d772ab46ffc24b3bb80d6e26e20e53c78625539bd7d7794aa24467b0a6109359ed3db9004cb014f1af18c530335006a5

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDP:o6C5AXbMn7UI1FoV2gwTBlrIckPJ

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\82c8fac397267d1a97e1fd971a53466a6b4fdd5b0bd692b31a6d648170594a3a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\82c8fac397267d1a97e1fd971a53466a6b4fdd5b0bd692b31a6d648170594a3a.dll,#1
      2⤵
        PID:1420

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1420-55-0x00000000762F1000-0x00000000762F3000-memory.dmp

      Filesize

      8KB