Analysis

  • max time kernel
    122s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 17:40

General

  • Target

    NEAS.189b1c539080b979f5c5afbd65fc2940_JC.dll

  • Size

    670KB

  • MD5

    189b1c539080b979f5c5afbd65fc2940

  • SHA1

    b5a3252ac8454d22855376c0f479763eea539f3f

  • SHA256

    bec544636e477bab30a62d401557985642ca3f757c73e481458ac9f7a2e98236

  • SHA512

    59b612878c5e23e1147996c613ed76488dd4dec051456df4e292f0ddcdc84864152bd08d634d9cd78825f09f526da4f91350b163dff6df99935a42729c91dfa3

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY7:o6RI1Fo/wT3cJYYYYYYYYYYYY7

Score
10/10

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.189b1c539080b979f5c5afbd65fc2940_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.189b1c539080b979f5c5afbd65fc2940_JC.dll,#1
      2⤵
        PID:2184

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads