Analysis

  • max time kernel
    176s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-10-2023 14:53

General

  • Target

    818129c0636adee326d71f8d02aa5c80_dll32_JC.dll

  • Size

    172KB

  • MD5

    818129c0636adee326d71f8d02aa5c80

  • SHA1

    a3df2a89e80d3ce5eda1455fcba7216cb3b33269

  • SHA256

    a2b39e5fae4dd5ebd739e2b67917247ff3b64181f6a428eb54e5f7124bdf5574

  • SHA512

    8ad4dca83f0740ce15058b9e1fd977b818bedf881211aaf5104593fc55080384e43b4256d960530725ac15cd16de264184f672ceea99a599faa2179db6681321

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0X:jDgtfRQUHPw06MoV2nwTBlhm8v

Score
10/10

Malware Config

Signatures

  • Yunsip

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\818129c0636adee326d71f8d02aa5c80_dll32_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\818129c0636adee326d71f8d02aa5c80_dll32_JC.dll,#1
      2⤵
        PID:2952

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads