Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2022 10:04

General

  • Target

    a9d647f48cc7d3c6cf6aaf975f32ffea9e1425b0c0164255e2c454d25f328bf5.dll

  • Size

    701KB

  • MD5

    01f25030a3c8ec19e09ffe3b806f63c0

  • SHA1

    31ff9a22f3bdb528ddbbca509068c13d5c2a095a

  • SHA256

    a9d647f48cc7d3c6cf6aaf975f32ffea9e1425b0c0164255e2c454d25f328bf5

  • SHA512

    afd4b61d58d394895807e4fa7436b3ec466d973ffafadfe849a93386466e0c85308b1fefcc058a33c8551af3b5d712feea9b0de75b51768b589b0694035ee96d

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0o2gqTNY4a:jDgtfRQUHPw06MoV2nwTBlhm8pgqTm

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\a9d647f48cc7d3c6cf6aaf975f32ffea9e1425b0c0164255e2c454d25f328bf5.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9d647f48cc7d3c6cf6aaf975f32ffea9e1425b0c0164255e2c454d25f328bf5.dll,#1
      2⤵
        PID:1324

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1324-54-0x0000000000000000-mapping.dmp
    • memory/1324-55-0x0000000075A11000-0x0000000075A13000-memory.dmp
      Filesize

      8KB