Analysis

  • max time kernel
    7s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 22:04

General

  • Target

    2f918a21b1b7fca8e82505e279cdd7e1b9f40a5d7c8d7bcab15c74b20bcc75ce.dll

  • Size

    278KB

  • MD5

    38fc660535427fedfce7702938a3a930

  • SHA1

    f8409fd6aac6d9eb76d00095c5edf85a02e1ab9b

  • SHA256

    2f918a21b1b7fca8e82505e279cdd7e1b9f40a5d7c8d7bcab15c74b20bcc75ce

  • SHA512

    b97c3e073eb030764515e2b73e61c0d98871ac15a298fddf92935490d6e6b217a908e0cb8b474aebc83ccde8362be54543c141b18dda65b4e22601304aa3e30f

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0q:jDgtfRQUHPw06MoV2nwTBlhm8y

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\2f918a21b1b7fca8e82505e279cdd7e1b9f40a5d7c8d7bcab15c74b20bcc75ce.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:964
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2f918a21b1b7fca8e82505e279cdd7e1b9f40a5d7c8d7bcab15c74b20bcc75ce.dll,#1
      2⤵
        PID:240

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/240-55-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

      Filesize

      8KB