Analysis

  • max time kernel
    148s
  • max time network
    146s
  • 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 06:59

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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 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:4992
    • 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:4228
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QglnNavO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp147D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1508
    • 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:4056
      • 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:2972
        • 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\qbncbdiffapyqiafsx"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1632
        • 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\bvtmcwtybiidsowjbimnvy"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:1992
        • 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\lxgfcoeapqaqccknstygfkatf"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5112

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      cc163524ef96729b004e53afe4818bb4

      SHA1

      e6855c0bddda700d9dda8e2bf0ec9af0607961b3

      SHA256

      1e0feaafa15d9477d39a1d3467e544ac81917bc8995c956e040616d1d3d0408b

      SHA512

      fde0870d4ec3783c165220b1af77ffcf8ba4d2f9537552f822c1b84966c40ca05135e91a4362461c8ab3dcfff37bb252a69d72d611db1a16f6759af2ffbffb9a

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j2sdburx.xdo.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      4KB

      MD5

      ac300aeaf27709e2067788fdd4624843

      SHA1

      e98edd4615d35de96e30f1a0e13c05b42ee7eb7b

      SHA256

      d2637d58bb120dc6fefe2f38d6e0d4b308006b8639106a7f9e915fa80b5cc9d9

      SHA512

      09c46e708f9d253dccd4d943639d9f8126f868ae3dcd951aad12222bb98b5d3814676f878c8391b9bdab5dedcf5b9e9eaeb2ad3ffec57bda875198735586d4df

    • C:\Users\Admin\AppData\Local\Temp\tmp147D.tmp

      Filesize

      1KB

      MD5

      bcd5832a89ddf8802d548fce2d3e47e2

      SHA1

      de23c5d8ac5d9b6941fd2b8ab7c732213891caef

      SHA256

      76d4cd67ca6ca611288902df8e66ad843502f0731d6c8b96271a76686f50e1e9

      SHA512

      21284ca592c5c958a3591893f220053522a5bcb2662377d1b27179d4c6c4c94a25d6eb99c4e9214e1a0fffe0ff634da5c5d7725324c7b20732a9d0ca054982ec

    • memory/1632-66-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1632-70-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1632-68-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1992-67-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1992-71-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1992-69-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2972-85-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2972-24-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-90-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-88-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2972-89-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2972-102-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-49-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-103-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-111-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-110-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-25-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-100-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-118-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-27-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-32-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-119-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-43-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-29-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-126-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-127-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-52-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-48-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2972-47-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/4228-22-0x0000000005CC0000-0x0000000005D26000-memory.dmp

      Filesize

      408KB

    • memory/4228-94-0x0000000007B70000-0x0000000007B78000-memory.dmp

      Filesize

      32KB

    • memory/4228-54-0x000000006F940000-0x000000006F98C000-memory.dmp

      Filesize

      304KB

    • memory/4228-53-0x0000000006AE0000-0x0000000006B12000-memory.dmp

      Filesize

      200KB

    • memory/4228-64-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

      Filesize

      120KB

    • memory/4228-65-0x0000000007500000-0x00000000075A3000-memory.dmp

      Filesize

      652KB

    • memory/4228-45-0x0000000006520000-0x000000000653E000-memory.dmp

      Filesize

      120KB

    • memory/4228-97-0x0000000074F20000-0x00000000756D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4228-28-0x0000000005EB0000-0x0000000006204000-memory.dmp

      Filesize

      3.3MB

    • memory/4228-46-0x0000000006960000-0x00000000069AC000-memory.dmp

      Filesize

      304KB

    • memory/4228-93-0x0000000007B90000-0x0000000007BAA000-memory.dmp

      Filesize

      104KB

    • memory/4228-92-0x0000000007A90000-0x0000000007AA4000-memory.dmp

      Filesize

      80KB

    • memory/4228-21-0x00000000054F0000-0x0000000005556000-memory.dmp

      Filesize

      408KB

    • memory/4228-79-0x0000000007850000-0x000000000786A000-memory.dmp

      Filesize

      104KB

    • memory/4228-78-0x0000000007E90000-0x000000000850A000-memory.dmp

      Filesize

      6.5MB

    • memory/4228-91-0x0000000007A80000-0x0000000007A8E000-memory.dmp

      Filesize

      56KB

    • memory/4228-23-0x0000000074F20000-0x00000000756D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4228-80-0x00000000078C0000-0x00000000078CA000-memory.dmp

      Filesize

      40KB

    • memory/4228-82-0x0000000007AD0000-0x0000000007B66000-memory.dmp

      Filesize

      600KB

    • memory/4228-83-0x0000000007A50000-0x0000000007A61000-memory.dmp

      Filesize

      68KB

    • memory/4228-20-0x0000000005450000-0x0000000005472000-memory.dmp

      Filesize

      136KB

    • memory/4228-18-0x0000000005690000-0x0000000005CB8000-memory.dmp

      Filesize

      6.2MB

    • memory/4228-17-0x0000000074F20000-0x00000000756D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4228-16-0x0000000074F20000-0x00000000756D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4228-15-0x0000000004F60000-0x0000000004F96000-memory.dmp

      Filesize

      216KB

    • memory/4992-6-0x0000000074F20000-0x00000000756D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4992-7-0x0000000005360000-0x0000000005372000-memory.dmp

      Filesize

      72KB

    • memory/4992-1-0x0000000000510000-0x0000000000612000-memory.dmp

      Filesize

      1.0MB

    • memory/4992-2-0x0000000005560000-0x0000000005B04000-memory.dmp

      Filesize

      5.6MB

    • memory/4992-44-0x0000000074F20000-0x00000000756D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4992-10-0x0000000008140000-0x0000000008202000-memory.dmp

      Filesize

      776KB

    • memory/4992-3-0x0000000005050000-0x00000000050E2000-memory.dmp

      Filesize

      584KB

    • memory/4992-8-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

      Filesize

      4KB

    • memory/4992-9-0x0000000074F20000-0x00000000756D0000-memory.dmp

      Filesize

      7.7MB

    • memory/4992-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

      Filesize

      4KB

    • memory/4992-5-0x0000000005010000-0x000000000501A000-memory.dmp

      Filesize

      40KB

    • memory/4992-4-0x00000000050F0000-0x000000000518C000-memory.dmp

      Filesize

      624KB

    • memory/5112-72-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/5112-73-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/5112-77-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB