Analysis

  • max time kernel
    45s
  • max time network
    97s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 10:26

General

  • Target

    3ee28d8d2fead7e9d45a1de5e5837a75476e352640b973c906d855db8f7f2026.dll

  • Size

    651KB

  • MD5

    4d1298df40e4f6b9dee95104be943620

  • SHA1

    5a1ee6a851c7b6a987a203528fee6835080a6788

  • SHA256

    3ee28d8d2fead7e9d45a1de5e5837a75476e352640b973c906d855db8f7f2026

  • SHA512

    6ecab982e33a71693d092195b7015ddfc40835b892a86f8724597db517405404ce72304c9a3cde12051f8e9334ca8467561ecbb8c0ae3d96413592687f74144d

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0k:jDgtfRQUHPw06MoV2nwTBlhm8c

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\3ee28d8d2fead7e9d45a1de5e5837a75476e352640b973c906d855db8f7f2026.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ee28d8d2fead7e9d45a1de5e5837a75476e352640b973c906d855db8f7f2026.dll,#1
      2⤵
        PID:1968

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1968-55-0x00000000756B1000-0x00000000756B3000-memory.dmp

      Filesize

      8KB