Analysis

  • max time kernel
    53s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 02:42

General

  • Target

    f9b594774c6c9ec8aa4c2b67b2008e306c23ba94905c7f9868e754651130464f.dll

  • Size

    235KB

  • MD5

    0e3705fae4e53ed938fb4a24d04f0ef3

  • SHA1

    4311b59c2ac76f38753c8ff3bdb9bc547fe380c3

  • SHA256

    f9b594774c6c9ec8aa4c2b67b2008e306c23ba94905c7f9868e754651130464f

  • SHA512

    cc93708a3f403a5e621e11d4e9529753d010dbb8357dccb04b79ef331266d6568a45c35c273ddfe0d3f4297b77092ba70c75ec8418840a0a0c340881df00ba79

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0f:jDgtfRQUHPw06MoV2nwTBlhm83

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\f9b594774c6c9ec8aa4c2b67b2008e306c23ba94905c7f9868e754651130464f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9b594774c6c9ec8aa4c2b67b2008e306c23ba94905c7f9868e754651130464f.dll,#1
      2⤵
        PID:540

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads