Analysis

  • max time kernel
    35s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 01:58

General

  • Target

    0ec4bf740231c041c40e710ac24a576ed941fdf1ce0c6bd46ca96891c8bccfa5.dll

  • Size

    258KB

  • MD5

    49ee4c9a4ae3ecad38b364bd24b355ba

  • SHA1

    de56fe06327fe6dc3752370fe45559929680c155

  • SHA256

    0ec4bf740231c041c40e710ac24a576ed941fdf1ce0c6bd46ca96891c8bccfa5

  • SHA512

    46081ed8bc301d36440999fa35988c5723de76d025d7a1c025fdd92c893a98d2e5a9f5e153ebad068ed4bd1a81131142a03125de956fdc211f4e831fc99ecef8

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0e:jDgtfRQUHPw06MoV2nwTBlhm8G

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\0ec4bf740231c041c40e710ac24a576ed941fdf1ce0c6bd46ca96891c8bccfa5.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:908
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ec4bf740231c041c40e710ac24a576ed941fdf1ce0c6bd46ca96891c8bccfa5.dll,#1
      2⤵
        PID:1636

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1636-54-0x0000000000000000-mapping.dmp

    • memory/1636-55-0x00000000761F1000-0x00000000761F3000-memory.dmp

      Filesize

      8KB