Analysis

  • max time kernel
    90s
  • max time network
    155s
  • 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

    f237bbf03b9fc6d7302fb9d647eb3d4d53eb84caf7c380343186b5ed4106c00c.dll

  • Size

    743KB

  • MD5

    0b52ff223d2c3c457a5a4b90025d9fe0

  • SHA1

    adbd11f8fb56eee839ad6886de23a86ca9c1e556

  • SHA256

    f237bbf03b9fc6d7302fb9d647eb3d4d53eb84caf7c380343186b5ed4106c00c

  • SHA512

    2f9cedc74143cfea4c1597cfa88598d0e84b916a778e222e39a19ec75496ee7d82ea0eda56d98a9ffa751992a364d68fe5e41da7f6101b70b2569b343ba9881a

  • SSDEEP

    3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDs:o6C5AXbMn7UI1FoV2gwTBlrIckPC

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\f237bbf03b9fc6d7302fb9d647eb3d4d53eb84caf7c380343186b5ed4106c00c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f237bbf03b9fc6d7302fb9d647eb3d4d53eb84caf7c380343186b5ed4106c00c.dll,#1
      2⤵
        PID:4184

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads