Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2024 06:50

General

  • Target

    Customers_Technical_2D_Drawing-IMG.bat.exe

  • Size

    1004KB

  • MD5

    b55d24e6b8e053c08bdd57534af83734

  • SHA1

    13473f286428aa39869a9580c7f3fbb0fde8d9ed

  • SHA256

    27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b

  • SHA512

    1957bdfa97e1bd9309040f64d22c7348df0ca692f79a3136cb0203e19e5e4a67c5d8588e758f3e43a0652158a22042bd694635f0baaaa31c8d1c826432da8f22

  • SSDEEP

    24576:99CJVyR2dzExjVlDjcFXcq5meyUBNrllwKkwa9:9UO2dCzmeeT/sS

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

87.120.120.25:5940

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-13MD3U

  • 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
  • Detected Nirsoft tools 2 IoCs

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

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QglnNavO.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3172
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QglnNavO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE985.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5092
    • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe"
      2⤵
        PID:5012
      • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
        "C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe"
        2⤵
          PID:2092
        • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
          "C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1540
          • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
            C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\rotjlhgz"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:2256
          • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
            C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\biycmartruz"
            3⤵
              PID:2628
            • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
              C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\biycmartruz"
              3⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:4576
            • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
              C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\lkdvnscuncrepry"
              3⤵
              • Suspicious use of UnmapMainImage
              PID:3800
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 12
                4⤵
                • Program crash
                PID:3132
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3800 -ip 3800
          1⤵
            PID:1504

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\remcos\logs.dat

            Filesize

            144B

            MD5

            cf70fff3e125412bc7192f247e0fdaa6

            SHA1

            2f352b988522f43b48e9000837ec931a5b603e15

            SHA256

            6b468c7cbd43ecabf350a726ae20452f5dbe5a74ae404ef26c8634249dfcaa2f

            SHA512

            9e13cc8150a0d519af4170da006d4a4cb74e33e055721da81a899bd17dac7af811a414c18a2990f79aac726d8edeb9640f3568ed700083a29ed8f70a932b94e8

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ggyqsxe3.02y.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

            Filesize

            4KB

            MD5

            16dfb23eaa7972c59c36fcbc0946093b

            SHA1

            1e9e3ff83a05131575f67e202d352709205f20f8

            SHA256

            36c49c94327c8cadcad4c0d2b3a8f5162fc7bb86624923484476c5f7b960bc4c

            SHA512

            a8b38b5e7bf886b78c5c7f01234b44647a252d4dfbcc06c99b863f8e160e3cfc151b2a83b8b49e09d13e8547419467da4bffbb8dee5fc6740032eb7c839d89dc

          • C:\Users\Admin\AppData\Local\Temp\tmpE985.tmp

            Filesize

            1KB

            MD5

            65b0cf808227a00bbabad2d64f4fb101

            SHA1

            70d1fdfb0b64c5c06dcbfacd39c2f5f55137b18d

            SHA256

            47e1e4a6ddb539c7c4a1ce9e1d6e79bb7d5a63908c1c2791d95e10394bfa1a2f

            SHA512

            f9fbb99c975cec35a76cff2b06d4f7df947efcaf806dd08e60af563dbacbe555c63efb1e73f4eeb35a499f609eac8fcdb3cdb6fa708985cc4a8567e7f208e9ea

          • memory/1540-106-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-25-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-113-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-48-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-105-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-121-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-101-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-100-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/1540-99-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/1540-96-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/1540-122-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-129-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-24-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-114-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-32-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-130-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-82-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-40-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-29-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-72-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-26-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-71-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-52-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-50-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-49-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/1540-47-0x0000000000400000-0x000000000047F000-memory.dmp

            Filesize

            508KB

          • memory/2256-87-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2256-84-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2256-83-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/3172-79-0x00000000746E0000-0x0000000074E90000-memory.dmp

            Filesize

            7.7MB

          • memory/3172-66-0x0000000007FD0000-0x000000000864A000-memory.dmp

            Filesize

            6.5MB

          • memory/3172-45-0x0000000006650000-0x000000000666E000-memory.dmp

            Filesize

            120KB

          • memory/3172-22-0x00000000056C0000-0x0000000005726000-memory.dmp

            Filesize

            408KB

          • memory/3172-54-0x0000000074F70000-0x0000000074FBC000-memory.dmp

            Filesize

            304KB

          • memory/3172-15-0x0000000002D70000-0x0000000002DA6000-memory.dmp

            Filesize

            216KB

          • memory/3172-65-0x0000000007830000-0x00000000078D3000-memory.dmp

            Filesize

            652KB

          • memory/3172-16-0x00000000746E0000-0x0000000074E90000-memory.dmp

            Filesize

            7.7MB

          • memory/3172-67-0x0000000007980000-0x000000000799A000-memory.dmp

            Filesize

            104KB

          • memory/3172-68-0x0000000007A00000-0x0000000007A0A000-memory.dmp

            Filesize

            40KB

          • memory/3172-69-0x0000000007C00000-0x0000000007C96000-memory.dmp

            Filesize

            600KB

          • memory/3172-70-0x0000000007B80000-0x0000000007B91000-memory.dmp

            Filesize

            68KB

          • memory/3172-23-0x00000000746E0000-0x0000000074E90000-memory.dmp

            Filesize

            7.7MB

          • memory/3172-27-0x0000000005FD0000-0x0000000006324000-memory.dmp

            Filesize

            3.3MB

          • memory/3172-73-0x0000000007BB0000-0x0000000007BBE000-memory.dmp

            Filesize

            56KB

          • memory/3172-74-0x0000000007BC0000-0x0000000007BD4000-memory.dmp

            Filesize

            80KB

          • memory/3172-75-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

            Filesize

            104KB

          • memory/3172-76-0x0000000007CA0000-0x0000000007CA8000-memory.dmp

            Filesize

            32KB

          • memory/3172-20-0x00000000055B0000-0x00000000055D2000-memory.dmp

            Filesize

            136KB

          • memory/3172-17-0x00000000058A0000-0x0000000005EC8000-memory.dmp

            Filesize

            6.2MB

          • memory/3172-53-0x0000000006C20000-0x0000000006C52000-memory.dmp

            Filesize

            200KB

          • memory/3172-46-0x0000000006700000-0x000000000674C000-memory.dmp

            Filesize

            304KB

          • memory/3172-64-0x0000000006C00000-0x0000000006C1E000-memory.dmp

            Filesize

            120KB

          • memory/3172-18-0x00000000746E0000-0x0000000074E90000-memory.dmp

            Filesize

            7.7MB

          • memory/3172-21-0x0000000005650000-0x00000000056B6000-memory.dmp

            Filesize

            408KB

          • memory/3536-4-0x0000000005220000-0x00000000052BC000-memory.dmp

            Filesize

            624KB

          • memory/3536-7-0x00000000056D0000-0x00000000056E2000-memory.dmp

            Filesize

            72KB

          • memory/3536-1-0x0000000000600000-0x0000000000702000-memory.dmp

            Filesize

            1.0MB

          • memory/3536-8-0x00000000746EE000-0x00000000746EF000-memory.dmp

            Filesize

            4KB

          • memory/3536-41-0x00000000746E0000-0x0000000074E90000-memory.dmp

            Filesize

            7.7MB

          • memory/3536-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

            Filesize

            4KB

          • memory/3536-9-0x00000000746E0000-0x0000000074E90000-memory.dmp

            Filesize

            7.7MB

          • memory/3536-2-0x0000000005730000-0x0000000005CD4000-memory.dmp

            Filesize

            5.6MB

          • memory/3536-3-0x00000000050D0000-0x0000000005162000-memory.dmp

            Filesize

            584KB

          • memory/3536-10-0x00000000082A0000-0x0000000008362000-memory.dmp

            Filesize

            776KB

          • memory/3536-6-0x00000000051A0000-0x00000000051AA000-memory.dmp

            Filesize

            40KB

          • memory/3536-5-0x00000000746E0000-0x0000000074E90000-memory.dmp

            Filesize

            7.7MB

          • memory/3800-86-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4576-92-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/4576-85-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/4576-88-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB