Analysis

  • max time kernel
    39s
  • max time network
    45s
  • 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

    41400e5183343536cb80fc20c4b1d00264c5baa8a00a4648d63fb80918c33bcc.dll

  • Size

    591KB

  • MD5

    e568fc2e595c6d3562cf63a126e28280

  • SHA1

    f4adb318543bcc0f9e52ac218e0ccbef4936c60b

  • SHA256

    41400e5183343536cb80fc20c4b1d00264c5baa8a00a4648d63fb80918c33bcc

  • SHA512

    0f25a32bade86509e4afcf2b66e80f3d15807249d7fa9e4c87a8ae2a7c26b36c54b48ac0456ab006638cc7ceab5f4358f91ae06dbffee309ef84dfd2820af54e

  • SSDEEP

    3072:oDKpt9sSR0HUHPwZWLnWVfEAzV2INwTBftZmc+z+f3Q0H:oDgtfRQUHPw06MoV2swTBlxm8v

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\41400e5183343536cb80fc20c4b1d00264c5baa8a00a4648d63fb80918c33bcc.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\41400e5183343536cb80fc20c4b1d00264c5baa8a00a4648d63fb80918c33bcc.dll,#1
      2⤵
        PID:1852

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1852-55-0x0000000075521000-0x0000000075523000-memory.dmp

      Filesize

      8KB