Analysis

  • max time kernel
    135s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-10-2023 03:15

General

  • Target

    NEAS.a458bf085bc010b25e3956ba5e524210_JC.dll

  • Size

    812KB

  • MD5

    a458bf085bc010b25e3956ba5e524210

  • SHA1

    6d0c74677bf72ea238590b17fed9e1d4261ff3a9

  • SHA256

    ca2b982226544fbc013725fa71d5a57667575391ad9e025f1a2c0e8b7461f0bc

  • SHA512

    05ebc625a1f66a34b7df5fd8451beee7be774bf4fbb03cad03e6c64100277063fbcece5fc9b882d2b159ca8eab1648ab981997272a39fb3c5fc2a02bb0cd7f70

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0X:jDgtfRQUHPw06MoV2nwTBlhm8v

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\NEAS.a458bf085bc010b25e3956ba5e524210_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.a458bf085bc010b25e3956ba5e524210_JC.dll,#1
      2⤵
        PID:4276

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads