Analysis

  • max time kernel
    21s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2022 15:05

General

  • Target

    7f757038633a8b83bdcc71c7de08b81fb3541b86937b08ba538fc9cddb12b91d.dll

  • Size

    305KB

  • MD5

    0c394d9ed8eaff7394dc590324ba2770

  • SHA1

    753437eb7b58293ecffdb65b010e9148f808e6a7

  • SHA256

    7f757038633a8b83bdcc71c7de08b81fb3541b86937b08ba538fc9cddb12b91d

  • SHA512

    33fb08c69226027eb476a4549490dd99a167e4c1333fe378cd39aa8cbc73ee796158f48b5ad5768c643c544165ddc91c79b4d6f101f102a083317e7a309ddb8a

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0g:jDgtfRQUHPw06MoV2nwTBlhm8o

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\7f757038633a8b83bdcc71c7de08b81fb3541b86937b08ba538fc9cddb12b91d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\7f757038633a8b83bdcc71c7de08b81fb3541b86937b08ba538fc9cddb12b91d.dll,#1
      2⤵
        PID:844

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/844-55-0x0000000076401000-0x0000000076403000-memory.dmp

      Filesize

      8KB