Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/12/2024, 07:41

General

  • Target

    IB9876789000.bat.exe

  • Size

    832KB

  • MD5

    f443c222255e35ee6dd0e194360c23ce

  • SHA1

    a8c84df31a575ab84e6255b89351ce877c9619c8

  • SHA256

    7053c8d9983dc949e5d559ba1b006b8ba9c059a23e06cd87c857c3d04201381b

  • SHA512

    ca58f238cf2599fabd5c34faa34630e2f158cc87a612ad1783a5982b7c835bf7941ee68699dc3e9486f01b578caf6ac53a15f22b92398aa32c8d8742d202fe53

  • SSDEEP

    12288:OeB1Nd/75yaHV5epXyU8+uggQdbGqDEEiHczNGNB4aEPvl1bDDdOJVe3e+mraL:OW1D5yeV5eNyB7QtHDE3HcE0DA8mraL

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.210.150.26:3678

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-MKYDDH

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Remcos family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Detected Nirsoft tools 3 IoCs

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

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 2 TTPs 3 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IB9876789000.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\IB9876789000.bat.exe"
    1⤵
    • UAC bypass
    • Windows security bypass
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3552
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\IB9876789000.bat.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2144
    • C:\Windows\System32\svchost.exe
      "C:\Windows\System32\svchost.exe"
      2⤵
        PID:2636
      • C:\Windows\System32\calc.exe
        "C:\Windows\System32\calc.exe"
        2⤵
          PID:1164
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3260
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /stext "C:\Users\Admin\AppData\Local\Temp\rsomwgmmrasbrrtkyhgpsyqi"
            3⤵
              PID:3180
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /stext "C:\Users\Admin\AppData\Local\Temp\rsomwgmmrasbrrtkyhgpsyqi"
              3⤵
                PID:4156
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /stext "C:\Users\Admin\AppData\Local\Temp\rsomwgmmrasbrrtkyhgpsyqi"
                3⤵
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                PID:2956
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /stext "C:\Users\Admin\AppData\Local\Temp\buufwzxfeikotxpohstqvllzcqn"
                3⤵
                • Accesses Microsoft Outlook accounts
                • System Location Discovery: System Language Discovery
                PID:1692
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /stext "C:\Users\Admin\AppData\Local\Temp\dpzxxrhhaqctdddsydnsgxfidxwmpyg"
                3⤵
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:4176

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\remcos\logs.dat

            Filesize

            144B

            MD5

            7789f76864c4ae6a91336f8c6e147117

            SHA1

            be87a9b47e706106939a8f5e76621a5a797127d1

            SHA256

            682b75d8c2f74f360ae40c1c31d472f9bb0dc9e45dd6aa5633eda3ad0c65841e

            SHA512

            04014f1ea54cbaba1dd9eee9a56a5b4bc2ee4e32a6fafea3c2b16bcfd12dfc153123f1924fc607398b5ff717f861ba6db6543955093fdcc17bf65c6775336159

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gbiv0vyf.jrt.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • C:\Users\Admin\AppData\Local\Temp\rsomwgmmrasbrrtkyhgpsyqi

            Filesize

            4KB

            MD5

            79f35c7500a5cc739c1974804710441f

            SHA1

            24fdf1fa45049fc1a83925c45357bc3058bad060

            SHA256

            897101ed9da25ab0f10e8ad1aeb8dabc3282ccfdb6d3171dbac758117b8731f4

            SHA512

            03281e8abecff4e7d1f563596a4fd2513e016b7fbf011a455141460f9448d00b4a4666d2036cb448a8ac9a6feebeb51b366289ffa2ee5524a062fe8869aec61e

          • memory/1692-37-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/1692-38-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/1692-36-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/2144-18-0x00007FFD6F320000-0x00007FFD6FDE1000-memory.dmp

            Filesize

            10.8MB

          • memory/2144-15-0x00007FFD6F320000-0x00007FFD6FDE1000-memory.dmp

            Filesize

            10.8MB

          • memory/2144-32-0x00007FFD6F320000-0x00007FFD6FDE1000-memory.dmp

            Filesize

            10.8MB

          • memory/2144-14-0x0000020BDA070000-0x0000020BDA092000-memory.dmp

            Filesize

            136KB

          • memory/2144-9-0x00007FFD6F320000-0x00007FFD6FDE1000-memory.dmp

            Filesize

            10.8MB

          • memory/2956-35-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2956-34-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2956-33-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/3260-17-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-58-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-28-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-30-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-31-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-24-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-25-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-23-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-87-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-86-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-79-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-78-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-19-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-16-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-71-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-46-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-70-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-62-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-55-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-54-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/3260-53-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/3260-50-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/3260-29-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3260-63-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/3552-1-0x000002427DD20000-0x000002427DDF4000-memory.dmp

            Filesize

            848KB

          • memory/3552-2-0x00000242183A0000-0x0000024218470000-memory.dmp

            Filesize

            832KB

          • memory/3552-3-0x00007FFD6F320000-0x00007FFD6FDE1000-memory.dmp

            Filesize

            10.8MB

          • memory/3552-47-0x00007FFD6F320000-0x00007FFD6FDE1000-memory.dmp

            Filesize

            10.8MB

          • memory/3552-0-0x00007FFD6F323000-0x00007FFD6F325000-memory.dmp

            Filesize

            8KB

          • memory/4176-44-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4176-43-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4176-39-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB