Analysis

  • max time kernel
    10s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 22:05

General

  • Target

    253cb5a8add6cbf1226c312feab7dd2448b7a29e2adbc73a59d77d90130a325c.dll

  • Size

    289KB

  • MD5

    283ac1b26efe3db0454b98fc7969dba0

  • SHA1

    b24b3b7b674703d13d046cf07b9ff4837da46a22

  • SHA256

    253cb5a8add6cbf1226c312feab7dd2448b7a29e2adbc73a59d77d90130a325c

  • SHA512

    4f875f62fe3b1817a4362df4939f23247a0fca8b7693faaae5bd48161fdaae0ea58dbe09200212051a9f1a536600fb1c108c22482c0397b269c7d7f838dfff06

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0P:jDgtfRQUHPw06MoV2nwTBlhm8n

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\253cb5a8add6cbf1226c312feab7dd2448b7a29e2adbc73a59d77d90130a325c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\253cb5a8add6cbf1226c312feab7dd2448b7a29e2adbc73a59d77d90130a325c.dll,#1
      2⤵
        PID:1408

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1408-55-0x0000000075D01000-0x0000000075D03000-memory.dmp

      Filesize

      8KB