Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 02:46

General

  • Target

    3B84DCE82113710E5AE3F379EBD9FA13.exe

  • Size

    1.1MB

  • MD5

    3b84dce82113710e5ae3f379ebd9fa13

  • SHA1

    26df2f5f9ba223ce4848586582172c9c20516416

  • SHA256

    b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4

  • SHA512

    299ed1e965189ff3d25bd6e12790d93648c0d69959eeab8d5d7c4563c3488764eadf968855782d50d68c98d67a6a63be80828367ec704a102c407ebd7a2fa871

  • SSDEEP

    24576:wHeZDOyc0wCqMXY1nhtFUSU6xNP1cQYY:wHbLm4ftFzx7c

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.149.241.204:435

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-DX92V7

  • 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 8 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe
    "C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OZIxXQGIP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2828
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OZIxXQGIP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp58E9.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2740
    • C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe
      "C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:216
      • C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe
        C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\kwzbnhbqkfepfckqjvaqbntkxmdwkpchy"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2808
      • C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe
        C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\uyelo"
        3⤵
          PID:1084
        • C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe
          C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\uyelo"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:3684
        • C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe
          C:\Users\Admin\AppData\Local\Temp\3B84DCE82113710E5AE3F379EBD9FA13.exe /stext "C:\Users\Admin\AppData\Local\Temp\xsjepsxmu"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1456

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bwphqqxx.0b5.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      4KB

      MD5

      17eece3240d08aa4811cf1007cfe2585

      SHA1

      6c10329f61455d1c96e041b6f89ee6260af3bd0f

      SHA256

      7cc0db44c7b23e4894fe11f0d8d84b2a82ad667eb1e3504192f3ba729f9a7903

      SHA512

      a7de8d6322410ec89f76c70a7159645e8913774f38b84aafeeeb9f90dc3b9aa74a0a280d0bb6674790c04a8ff2d059327f02ebfda6c4486778d53b7fc6da6370

    • C:\Users\Admin\AppData\Local\Temp\tmp58E9.tmp

      Filesize

      1KB

      MD5

      da4bc7e95ca910ad8215dfed3883f839

      SHA1

      f762572a590b1f1a99b892f50e3d6d9693441b73

      SHA256

      b598d1cfb7b4827e2ef2c71df3a1627ff20970e763924a08d5c2a49d85f4ec67

      SHA512

      c4abc197a23f9d5ef62802848a76edbb887ad352ad27d9d9fa445ce7b85572c0186cc9ee7306478c66dd5b289c39dc5439602ecaeb64e22cd31beef3373bce5a

    • memory/216-43-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-97-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-95-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-96-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-98-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-99-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-45-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-101-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-114-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-113-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-112-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-102-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-111-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-25-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-22-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-110-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-63-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/216-109-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-66-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/216-30-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-108-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-26-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-24-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-40-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-107-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-94-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-41-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-67-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/216-100-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-106-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-48-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-68-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-105-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-104-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/216-103-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1456-57-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1456-58-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1456-59-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1640-9-0x0000000008E50000-0x0000000008F12000-memory.dmp

      Filesize

      776KB

    • memory/1640-8-0x0000000075240000-0x00000000759F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1640-1-0x00000000005E0000-0x00000000006F4000-memory.dmp

      Filesize

      1.1MB

    • memory/1640-2-0x0000000007A60000-0x0000000008004000-memory.dmp

      Filesize

      5.6MB

    • memory/1640-6-0x0000000008010000-0x0000000008028000-memory.dmp

      Filesize

      96KB

    • memory/1640-5-0x0000000002A20000-0x0000000002A2A000-memory.dmp

      Filesize

      40KB

    • memory/1640-3-0x0000000007590000-0x0000000007622000-memory.dmp

      Filesize

      584KB

    • memory/1640-0-0x000000007524E000-0x000000007524F000-memory.dmp

      Filesize

      4KB

    • memory/1640-10-0x0000000006300000-0x000000000639C000-memory.dmp

      Filesize

      624KB

    • memory/1640-4-0x0000000075240000-0x00000000759F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1640-46-0x0000000075240000-0x00000000759F0000-memory.dmp

      Filesize

      7.7MB

    • memory/1640-7-0x000000007524E000-0x000000007524F000-memory.dmp

      Filesize

      4KB

    • memory/2808-49-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2808-50-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2808-51-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/2828-20-0x00000000056A0000-0x0000000005706000-memory.dmp

      Filesize

      408KB

    • memory/2828-70-0x000000006FD00000-0x000000006FD4C000-memory.dmp

      Filesize

      304KB

    • memory/2828-88-0x0000000007A40000-0x0000000007A54000-memory.dmp

      Filesize

      80KB

    • memory/2828-89-0x0000000007B40000-0x0000000007B5A000-memory.dmp

      Filesize

      104KB

    • memory/2828-90-0x0000000007B20000-0x0000000007B28000-memory.dmp

      Filesize

      32KB

    • memory/2828-93-0x0000000075240000-0x00000000759F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2828-86-0x0000000007A00000-0x0000000007A11000-memory.dmp

      Filesize

      68KB

    • memory/2828-85-0x0000000007A80000-0x0000000007B16000-memory.dmp

      Filesize

      600KB

    • memory/2828-84-0x0000000007870000-0x000000000787A000-memory.dmp

      Filesize

      40KB

    • memory/2828-83-0x0000000007800000-0x000000000781A000-memory.dmp

      Filesize

      104KB

    • memory/2828-82-0x0000000007E40000-0x00000000084BA000-memory.dmp

      Filesize

      6.5MB

    • memory/2828-81-0x0000000007700000-0x00000000077A3000-memory.dmp

      Filesize

      652KB

    • memory/2828-80-0x0000000006A10000-0x0000000006A2E000-memory.dmp

      Filesize

      120KB

    • memory/2828-87-0x0000000007A30000-0x0000000007A3E000-memory.dmp

      Filesize

      56KB

    • memory/2828-69-0x00000000076C0000-0x00000000076F2000-memory.dmp

      Filesize

      200KB

    • memory/2828-15-0x0000000002B50000-0x0000000002B86000-memory.dmp

      Filesize

      216KB

    • memory/2828-16-0x0000000075240000-0x00000000759F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2828-17-0x0000000005720000-0x0000000005D48000-memory.dmp

      Filesize

      6.2MB

    • memory/2828-44-0x0000000006A30000-0x0000000006A7C000-memory.dmp

      Filesize

      304KB

    • memory/2828-42-0x00000000064D0000-0x00000000064EE000-memory.dmp

      Filesize

      120KB

    • memory/2828-28-0x0000000005E70000-0x00000000061C4000-memory.dmp

      Filesize

      3.3MB

    • memory/2828-29-0x0000000075240000-0x00000000759F0000-memory.dmp

      Filesize

      7.7MB

    • memory/2828-21-0x0000000005E00000-0x0000000005E66000-memory.dmp

      Filesize

      408KB

    • memory/2828-19-0x0000000005480000-0x00000000054A2000-memory.dmp

      Filesize

      136KB

    • memory/3684-52-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/3684-60-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/3684-56-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB