Analysis

  • max time kernel
    139s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-10-2023 00:40

General

  • Target

    NEAS.e5797f23767ba9dd19d64a4d00bc3cc0_JC.dll

  • Size

    1020KB

  • MD5

    e5797f23767ba9dd19d64a4d00bc3cc0

  • SHA1

    dc162945f11f8a4fe78cc71360f39d4e2221ebed

  • SHA256

    60b81c1c10543f20b98e12da96cccbaaa2b69ab87fb83061406b178abd6df49c

  • SHA512

    06e1feee531a7fe7132adb1589f344cda7436acc3e4711041d513b27c387243bdd803681b9d5effccdf684ad5020ffdd27e380ed0628bc41cb45f915fc992836

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY0:o6RI1Fo/wT3cJYYYYYYYYYYYY0

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.e5797f23767ba9dd19d64a4d00bc3cc0_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1316
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.e5797f23767ba9dd19d64a4d00bc3cc0_JC.dll,#1
      2⤵
        PID:4712

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads