Analysis

  • max time kernel
    111s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2022 14:03

General

  • Target

    21a5237dd8faae37dfd750579558e73d839ff566c6e32d2d91c0651e503c6419.dll

  • Size

    620KB

  • MD5

    4b3e265b44e29e3f2f7896bcf8004f70

  • SHA1

    80d592cd57786f41b1a0791ded9645c29400ba34

  • SHA256

    21a5237dd8faae37dfd750579558e73d839ff566c6e32d2d91c0651e503c6419

  • SHA512

    29102c9b02edf60a4ca4ff48bb0b6184daf473653a43d9e82f7ac4a7739ffff7587a12a0812d2ab332a7efe0669722cfa5db28f7ef2f6347b2af510db1e00f25

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0u:jDgtfRQUHPw06MoV2nwTBlhm8m

Score
10/10

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\21a5237dd8faae37dfd750579558e73d839ff566c6e32d2d91c0651e503c6419.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\21a5237dd8faae37dfd750579558e73d839ff566c6e32d2d91c0651e503c6419.dll,#1
      2⤵
        PID:4440

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads