Analysis

  • max time kernel
    148s
  • max time network
    197s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 04:31

General

  • Target

    4639d9b925adf398a537da9261d4c8b8cba7f33f602a1ad82e980228d9c9631b.dll

  • Size

    393KB

  • MD5

    07a2c9a683ca500bd868c3273093e080

  • SHA1

    6d1a60142882336d3db70561d4cd23a139dce416

  • SHA256

    4639d9b925adf398a537da9261d4c8b8cba7f33f602a1ad82e980228d9c9631b

  • SHA512

    3c89c3747134518203da4a7961b5ea1d0d959cee914abc9d37f59dd2ad1e8642f0811d7d7ce2816b5f95c914d39b990eb1425f5563c07d909d1924b4d0eca881

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZD3:o6C5AXbMn7UI1FoV2gwTBlrIckPp

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\4639d9b925adf398a537da9261d4c8b8cba7f33f602a1ad82e980228d9c9631b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3748
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4639d9b925adf398a537da9261d4c8b8cba7f33f602a1ad82e980228d9c9631b.dll,#1
      2⤵
        PID:4892

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads