Analysis

  • max time kernel
    133s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 14:34

General

  • Target

    b92a0087c97e47e57f121503e2c7efb0_NEAS.dll

  • Size

    654KB

  • MD5

    b92a0087c97e47e57f121503e2c7efb0

  • SHA1

    da8640ce4dc8f6baa77ae52a75d8b205652fe193

  • SHA256

    9a638957b18e9926af8a567ac878b64da2335b80e16a8b00ee15c8a4645e4bc1

  • SHA512

    39a3fe80522002ccd4432337cad8c2e2b8ea493d720a141f2979ac2a6eac21855b0423eef1f85b7c13aab8f9b65c5a8886ea3309f8dd12f37a515d52c42ea994

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYf:o6RI1Fo/wT3cJYYYYYYYYYYYYf

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\b92a0087c97e47e57f121503e2c7efb0_NEAS.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b92a0087c97e47e57f121503e2c7efb0_NEAS.dll,#1
      2⤵
        PID:3468

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads