Analysis

  • max time kernel
    36s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2022 17:39

General

  • Target

    b0af7d29c3a7665389ec805deb6b035814ef4be83bc4147484f6dbc34cfb0d3a.dll

  • Size

    294KB

  • MD5

    74773b5ea39c25876cb2e36725c3b9c4

  • SHA1

    c70e3c6ab1be1edca9175c118eda59b8dddd990d

  • SHA256

    b0af7d29c3a7665389ec805deb6b035814ef4be83bc4147484f6dbc34cfb0d3a

  • SHA512

    a5b9044f107d31d7eca4ab0da7fd554cae01682cb054ad5e4fa862b96ba8d28febcaec1e5c0aa0052e838b2e50ce375deb006f17f66d6096ead1e923ec44c77b

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0O: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\b0af7d29c3a7665389ec805deb6b035814ef4be83bc4147484f6dbc34cfb0d3a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0af7d29c3a7665389ec805deb6b035814ef4be83bc4147484f6dbc34cfb0d3a.dll,#1
      2⤵
        PID:1852

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1852-55-0x0000000076151000-0x0000000076153000-memory.dmp

      Filesize

      8KB