Analysis

  • max time kernel
    119s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2025, 11:43

General

  • Target

    27cba389076973839b6dd510d35233ec828896802b7eb462f80844514fd6aa7e.exe

  • Size

    540KB

  • MD5

    37a3ec1dcef87ab6828f9a8d1f998298

  • SHA1

    7d8fb255d8fc4d2af7cd5896498ceee6f29323d8

  • SHA256

    27cba389076973839b6dd510d35233ec828896802b7eb462f80844514fd6aa7e

  • SHA512

    f4337776424093ff33848b703931d00ebff29894cb6a7d77a0036062f38d64d505250047db51962db613dcd21c3a7163c0100ebf3bf838fbff75ab1cff87f9b8

  • SSDEEP

    12288:Ghxc3TIlqGJs1jpqttRiOsopj8X8TsWELBpGkjrkgbPp2UJSVEtoPC5:ucoCyb6aIMTsWAfGONUkgEWPy

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 4 IoCs
  • Isrstealer family
  • Detected Nirsoft tools 6 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27cba389076973839b6dd510d35233ec828896802b7eb462f80844514fd6aa7e.exe
    "C:\Users\Admin\AppData\Local\Temp\27cba389076973839b6dd510d35233ec828896802b7eb462f80844514fd6aa7e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Users\Admin\AppData\Local\Temp\27cba389076973839b6dd510d35233ec828896802b7eb462f80844514fd6aa7e.exe
      "C:\Users\Admin\AppData\Local\Temp\27cba389076973839b6dd510d35233ec828896802b7eb462f80844514fd6aa7e.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Users\Admin\AppData\Roaming\invidia\invidia.exe
        "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2792
        • C:\Users\Admin\AppData\Roaming\invidia\invidia.exe
          "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2516
          • C:\Windows\SysWOW64\ipconfig.exe
            "C:\Windows\system32\ipconfig.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            • Gathers network information
            PID:1724
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\XPJCH.bat" "
              6⤵
              • System Location Discovery: System Language Discovery
              PID:1828
              • C:\Windows\SysWOW64\reg.exe
                REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "nvidia" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe" /f
                7⤵
                • Adds Run key to start application
                • System Location Discovery: System Language Discovery
                PID:1720
        • C:\Users\Admin\AppData\Roaming\invidia\invidia.exe
          "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2536
          • C:\Users\Admin\AppData\Roaming\invidia\invidia.exe
            "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2572
            • C:\Users\Admin\AppData\Roaming\invidia\invidia.exe
              "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:2324
            • C:\Users\Admin\AppData\Roaming\invidia\invidia.exe
              "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:884
            • C:\Users\Admin\AppData\Roaming\invidia\invidia.exe
              "C:\Users\Admin\AppData\Roaming\invidia\invidia.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
              6⤵
              • Executes dropped EXE
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:1664

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\XPJCH.bat

          Filesize

          143B

          MD5

          51308cba7cf80ad730df3b2958c300ca

          SHA1

          0450e6d4a0810d0bd35a52ad39607732e428c71f

          SHA256

          bfa3c7a13642621615c90ffb60e173aaf0b64666e7030115646059fc03d5bbbd

          SHA512

          5c9fb61979df5db1797767e6d1a1b7ff3c06a94a14b43e4131b4260fed436c942e99b5fda321690d783760a4c382ae1a3de8ceef323af37acb5e6ffc9fb3d616

        • \Users\Admin\AppData\Roaming\invidia\invidia.exe

          Filesize

          540KB

          MD5

          25b5dfd93a53cc01599b2f1eb846fb39

          SHA1

          888853d2a3426509a16d64f94bcc51f08d928c93

          SHA256

          a8c594329565720eeb47072930dd7aa0f66b485308f25c106584a98d4df741ee

          SHA512

          702c631efebf16afeee03442b057eca2173d9aec510cf1c5fc8853e867c628690a81134f28e835a68f51ce8af45a0fcd9033d745c56c994c3c79775d98e93f1f

        • memory/884-112-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/884-128-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/884-116-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/1664-145-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/1664-125-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/1960-3-0x0000000000400000-0x0000000000487000-memory.dmp

          Filesize

          540KB

        • memory/1960-4-0x0000000000400000-0x0000000000487000-memory.dmp

          Filesize

          540KB

        • memory/1960-18-0x0000000000400000-0x0000000000487000-memory.dmp

          Filesize

          540KB

        • memory/1960-2-0x000000000047D000-0x000000000047E000-memory.dmp

          Filesize

          4KB

        • memory/2324-101-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/2324-104-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/2324-106-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/2516-142-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2536-148-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/2536-70-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/2536-74-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/2536-66-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/2536-62-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/2536-59-0x0000000000400000-0x0000000000470000-memory.dmp

          Filesize

          448KB

        • memory/2572-100-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-79-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-99-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-98-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-96-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-123-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-89-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-87-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-85-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-83-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-81-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2572-91-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2792-45-0x0000000000400000-0x0000000000487000-memory.dmp

          Filesize

          540KB

        • memory/2792-93-0x0000000000400000-0x0000000000487000-memory.dmp

          Filesize

          540KB

        • memory/2792-46-0x0000000000400000-0x0000000000487000-memory.dmp

          Filesize

          540KB

        • memory/2920-41-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2920-7-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2920-9-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2920-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2920-15-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2920-16-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2920-19-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2920-13-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/2920-5-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB