Analysis

  • max time kernel
    46s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2022 10:05

General

  • Target

    1a7324389128d47b3f281d380e60adf2db1f2a6b4fe788c47bfc894b700fc123.dll

  • Size

    752KB

  • MD5

    31f76fecf08a93e9b82ee858089c3960

  • SHA1

    444ed07d4916f0b1d232c975a635170cc78d5f25

  • SHA256

    1a7324389128d47b3f281d380e60adf2db1f2a6b4fe788c47bfc894b700fc123

  • SHA512

    2d1ef65202389751cda78c849c11a06fde9b7342aaf12283de2d4f39e8ac6e2f8b1e95920b1a98b0dc129cc71796cc76bd98a729e41b0ed60447249c1cab7305

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0N:jDgtfRQUHPw06MoV2nwTBlhm8V

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\1a7324389128d47b3f281d380e60adf2db1f2a6b4fe788c47bfc894b700fc123.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a7324389128d47b3f281d380e60adf2db1f2a6b4fe788c47bfc894b700fc123.dll,#1
      2⤵
        PID:1760

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1760-55-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

      Filesize

      8KB