Analysis

  • max time kernel
    153s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    04-09-2021 07:04

General

  • Target

    DC9087009000.exe

  • Size

    564KB

  • MD5

    1a38c8b2bd82b0c0efd9bcdd6a02d5c8

  • SHA1

    6ce1c0fb181c34931809ceac48d36c7c2b40e769

  • SHA256

    99725d77056555125ea584b0ea92984abdb963950773181c61808a45ab3905a4

  • SHA512

    0b29c653c15552ee2dde3e3acae1397f8642d4f26d635b9d3f5b25e1aafb25d6df1f78053d5cbc4ebf43c0ffda6f1ef2e8f0b367e0480dec5bcfc2c2a409ae7a

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty Payload 4 IoCs
  • A310logger Executable 10 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe
    "C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:716
    • C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe
      "C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe"
      2⤵
        PID:2364
      • C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe
        "C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe"
        2⤵
          PID:2392
        • C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe
          "C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe"
          2⤵
            PID:2564
          • C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe
            "C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe"
            2⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2616
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
              3⤵
              • Checks processor information in registry
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3108
              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1700
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
              3⤵
              • Checks processor information in registry
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1028
              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1700
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
              3⤵
              • Checks processor information in registry
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3568
              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:652

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/652-149-0x00000000022B0000-0x00000000022B2000-memory.dmp

          Filesize

          8KB

        • memory/716-117-0x0000000005220000-0x0000000005291000-memory.dmp

          Filesize

          452KB

        • memory/716-128-0x00000000051C0000-0x00000000051C1000-memory.dmp

          Filesize

          4KB

        • memory/716-118-0x00000000057A0000-0x00000000057A1000-memory.dmp

          Filesize

          4KB

        • memory/716-121-0x00000000051D0000-0x00000000051DF000-memory.dmp

          Filesize

          60KB

        • memory/716-120-0x00000000053E0000-0x00000000053E1000-memory.dmp

          Filesize

          4KB

        • memory/716-115-0x00000000008F0000-0x00000000008F1000-memory.dmp

          Filesize

          4KB

        • memory/716-119-0x0000000005340000-0x0000000005341000-memory.dmp

          Filesize

          4KB

        • memory/1028-137-0x0000000002E70000-0x0000000002E71000-memory.dmp

          Filesize

          4KB

        • memory/1700-133-0x00000000031A0000-0x00000000031A2000-memory.dmp

          Filesize

          8KB

        • memory/1700-141-0x0000000000960000-0x0000000000962000-memory.dmp

          Filesize

          8KB

        • memory/2616-122-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/3108-129-0x00000000031D0000-0x00000000031D1000-memory.dmp

          Filesize

          4KB

        • memory/3108-126-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/3568-144-0x0000000002760000-0x0000000002761000-memory.dmp

          Filesize

          4KB