Analysis

  • max time kernel
    148s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2022 05:22

General

  • Target

    704c6da7c008366f892c0f64a9ff438694407f960ceed1518a925241a86a4867.dll

  • Size

    690KB

  • MD5

    345dfa517d3a4cebbf56302f8d52e110

  • SHA1

    a8280a088d17571716dbe69483370403e2d0a236

  • SHA256

    704c6da7c008366f892c0f64a9ff438694407f960ceed1518a925241a86a4867

  • SHA512

    125dfb10e97244b17e4a60d7f11fd7141476c8a33f1c05d72a93492af11ab6fdd9d2b1fb19f71fa4b2a91ff1fa7540cdfd3215da839ebed47628925f6e1cb567

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q05:jDgtfRQUHPw06MoV2nwTBlhm8h

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\704c6da7c008366f892c0f64a9ff438694407f960ceed1518a925241a86a4867.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4496
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\704c6da7c008366f892c0f64a9ff438694407f960ceed1518a925241a86a4867.dll,#1
      2⤵
        PID:2408

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/2408-132-0x0000000000000000-mapping.dmp