Analysis

  • max time kernel
    157s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2022 19:33

General

  • Target

    8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404.dll

  • Size

    658KB

  • MD5

    41179d5a015d0ebd0b69054a7e0e00f0

  • SHA1

    0a6e0e9550e1c6375bd7541a94a5618c8afa3fe0

  • SHA256

    8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404

  • SHA512

    92e8f815f6b190033dbfa251862dc5156c34b35c38a5f4a7a8e6c040f23be68af35f9bc6ac15aa04cbb9c24602047bbc866571c2adacb11108873a9a79e557be

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0D:jDgtfRQUHPw06MoV2nwTBlhm87

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\8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4208
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8af5966054f9fd334c5cf9cb6963110f48f7e12ba3fdf9c241c8fea25b4c6404.dll,#1
      2⤵
        PID:2724

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/2724-132-0x0000000000000000-mapping.dmp