Analysis

  • max time kernel
    42s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2022 21:20

General

  • Target

    54b25b1e53342c71fd40cf05d0cd2ace3d5ea7a1a060ca607943c3b6bc280088.dll

  • Size

    413KB

  • MD5

    807d04be7385a3a201c6d4882f8c38ef

  • SHA1

    5f6994081b5903475b062eb432392b611ff863e0

  • SHA256

    54b25b1e53342c71fd40cf05d0cd2ace3d5ea7a1a060ca607943c3b6bc280088

  • SHA512

    021cfa649d585fb1d0218c89f2aa111272b95168b89ec1b025058e6abf9735425b51f3a4ab567e4529f11f9f4a90ee796bc58a7a7be417cd370fcb576217709c

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0M:jDgtfRQUHPw06MoV2nwTBlhm8E

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\54b25b1e53342c71fd40cf05d0cd2ace3d5ea7a1a060ca607943c3b6bc280088.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\54b25b1e53342c71fd40cf05d0cd2ace3d5ea7a1a060ca607943c3b6bc280088.dll,#1
      2⤵
        PID:964

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/964-54-0x0000000000000000-mapping.dmp

    • memory/964-55-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

      Filesize

      8KB