Analysis

  • max time kernel
    38s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2022 05:20

General

  • Target

    945155bb02f89f24ee5a16964aea0f07b89302b3640fd3d7c3f3248aefdbcc2d.dll

  • Size

    291KB

  • MD5

    5a12dd01e2c0830ce2f7ce2f23d7d400

  • SHA1

    d6b7291867f42e5a51e4b153cf351de7e2a5c3f5

  • SHA256

    945155bb02f89f24ee5a16964aea0f07b89302b3640fd3d7c3f3248aefdbcc2d

  • SHA512

    94a68bf1dec3bbe1ef64bca1d1d63ff66c90c7f5d06a5d5fa93a2a3f28dfccd9f79f8790f978c9fa6d6535da859f82bb3e971b0cc72f8111c2577d7154dac455

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0/: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\945155bb02f89f24ee5a16964aea0f07b89302b3640fd3d7c3f3248aefdbcc2d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\945155bb02f89f24ee5a16964aea0f07b89302b3640fd3d7c3f3248aefdbcc2d.dll,#1
      2⤵
        PID:560

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/560-55-0x0000000075A31000-0x0000000075A33000-memory.dmp

      Filesize

      8KB