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
    20-10-2022 21:20

General

  • Target

    5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f.dll

  • Size

    614KB

  • MD5

    814e90b43872ba632643360f3d3d8460

  • SHA1

    3aec9d080b541d599f70b1812121c1ba41e5e958

  • SHA256

    5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f

  • SHA512

    018e3eaa39c7f56dc4a17cd8406d061b8b6b12bda03a7ab2ed5110b018569b158b94d8d912a756078a1cc7ae3f9ba10b19876a80791991ffbab738bdc7f89719

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0u:jDgtfRQUHPw06MoV2nwTBlhm8m

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\5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5ca03b35e8073165542c05981384ca00441059410ed61d0e5ab1294b1d68bf3f.dll,#1
      2⤵
        PID:2032

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2032-54-0x0000000000000000-mapping.dmp

    • memory/2032-55-0x0000000076681000-0x0000000076683000-memory.dmp

      Filesize

      8KB