Analysis

  • max time kernel
    90s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-11-2022 16:16

General

  • Target

    739c3e20b49d0de8b3c1472e3559a1818d3599afef223f31e1d86f2106c5210d.dll

  • Size

    679KB

  • MD5

    0ba88b28a3603f1702e4cf2db0aca8d0

  • SHA1

    2d1846b8889ce9195cfcb1568a4626f763ca346e

  • SHA256

    739c3e20b49d0de8b3c1472e3559a1818d3599afef223f31e1d86f2106c5210d

  • SHA512

    43e426afe17e0b9527a5296f252db966e81efb089c54c082c703a9f7bd57373cedbe0350e362b1d1223bf22c192390384c38a0a1da810719176052449be30583

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDQ:o6C5AXbMn7UI1FoV2gwTBlrIckPm

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\739c3e20b49d0de8b3c1472e3559a1818d3599afef223f31e1d86f2106c5210d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4216
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\739c3e20b49d0de8b3c1472e3559a1818d3599afef223f31e1d86f2106c5210d.dll,#1
      2⤵
        PID:3564

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads