Analysis

  • max time kernel
    27s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    01-07-2021 14:13

General

  • Target

    a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b.exe

  • Size

    421KB

  • MD5

    ffff18fc7c2166c2a1a3c3d8bbd95ba1

  • SHA1

    7af27ee542f599e4b68a032bc43295eec03c1e0e

  • SHA256

    a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b

  • SHA512

    3a36a1b6cf4b933cc546157b51a48e0b87fd1bc9fc41b5763500ecf89fca7017e2fdc721593ff6eaa2607b434c4d0133132460f1d090d5f459905f410a4c1435

Score
10/10

Malware Config

Signatures

  • GoldDragon

    GoldDragon is a second-stage backdoor attributed to Kimsuky.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Modifies registry class 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b.exe
    "C:\Users\Admin\AppData\Local\Temp\a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b.exe"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3944
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c dir C:\Users\Admin\Desktop\ >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
      2⤵
        PID:360
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c dir C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\Recent\ >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
        2⤵
          PID:1680
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c dir C:\PROGRA~2\ >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
          2⤵
            PID:4004
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c systeminfo >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3576
            • C:\Windows\SysWOW64\systeminfo.exe
              systeminfo
              3⤵
              • Gathers system information
              PID:3404
        • C:\Windows\system32\OpenWith.exe
          C:\Windows\system32\OpenWith.exe -Embedding
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:2412

        Network

        MITRE ATT&CK Enterprise v6

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        Downloads