Analysis

  • max time kernel
    59s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/02/2024, 02:25

General

  • Target

    2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe

  • Size

    990KB

  • MD5

    ae507105cceba5aacb48465edc216829

  • SHA1

    3ce82cbc3bfe6ce6cc80548b3972fe50474ee58d

  • SHA256

    2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847

  • SHA512

    789fb309e65a1cff6b56ea1101aaa81739ab7a9ac4082aea12a6d4349cb2b18daf4b1417817e4425dadcd3171be7b4946f032ffe32ff5e5dc5497d6c8ae0e5bf

  • SSDEEP

    24576:5Xz87bPA2b+O0v7c+6ShVZ5II39pexAJSgEiYG77:5Xz87k/O0vAkhVZ63KMG7

Malware Config

Extracted

Family

remcos

Botnet

DESK

C2

198.27.121.194:2024

Attributes
  • audio_folder

    MicRecords

  • 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-EQJXDT

  • 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.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 15 IoCs
  • Detects executables built or packed with MPress PE compressor 16 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • 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 2 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
    "C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2272
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LCIBkTUxHQE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5096
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LCIBkTUxHQE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2FA6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2068
    • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
      "C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4996
      • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
        C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\qpxmrd"
        3⤵
          PID:1444
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\qpxmrd"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4988
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\ajlfsvhhj"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:5080
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\llqxtgrixlnh"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4864

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eq1g50vz.pax.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

            Filesize

            4KB

            MD5

            b4329339750e86291d8a7191b0dc7955

            SHA1

            a125e8cf6fec1b6fd003139495a37d68f020254f

            SHA256

            85e5e57100dde581ff37dcd80cbe55643328aaa6518b265ceb788d21ba9d0695

            SHA512

            9bd5d6ae3feca8eaa03a1c3c147fc98aebca41aea976b1deeb9ae158cd4acfbdd45244a727c071a604fed12dcadc568462777597758532c42d28ec480bfc6054

          • C:\Users\Admin\AppData\Local\Temp\tmp2FA6.tmp

            Filesize

            1KB

            MD5

            71bb669c8b6f51d3499c70c2624012cd

            SHA1

            9de09a4098a0fa85e0313697108d53c54550bac7

            SHA256

            7693d47224e82c0a15e304dd5b5cca76f0f878579bee0452cffb3f4382573b92

            SHA512

            049ada09c6ff3e6f36fef47456b6e9729e436b011f6b8fdc6c061c6b5e6a74a88648749f394ce3e15931417292d5d28856694dd55582368db3fd0cf3a1397d5c

          • memory/2272-12-0x0000000004E50000-0x0000000004E60000-memory.dmp

            Filesize

            64KB

          • memory/2272-1-0x0000000074690000-0x0000000074E40000-memory.dmp

            Filesize

            7.7MB

          • memory/2272-5-0x0000000004C60000-0x0000000004C6A000-memory.dmp

            Filesize

            40KB

          • memory/2272-6-0x00000000076E0000-0x000000000777C000-memory.dmp

            Filesize

            624KB

          • memory/2272-7-0x0000000007A10000-0x0000000007A24000-memory.dmp

            Filesize

            80KB

          • memory/2272-8-0x0000000007A30000-0x0000000007A3A000-memory.dmp

            Filesize

            40KB

          • memory/2272-9-0x0000000007A40000-0x0000000007A4E000-memory.dmp

            Filesize

            56KB

          • memory/2272-10-0x0000000007BA0000-0x0000000007C66000-memory.dmp

            Filesize

            792KB

          • memory/2272-11-0x0000000074690000-0x0000000074E40000-memory.dmp

            Filesize

            7.7MB

          • memory/2272-3-0x0000000004BA0000-0x0000000004C32000-memory.dmp

            Filesize

            584KB

          • memory/2272-2-0x0000000005270000-0x0000000005814000-memory.dmp

            Filesize

            5.6MB

          • memory/2272-4-0x0000000004E50000-0x0000000004E60000-memory.dmp

            Filesize

            64KB

          • memory/2272-34-0x0000000074690000-0x0000000074E40000-memory.dmp

            Filesize

            7.7MB

          • memory/2272-0-0x00000000000E0000-0x00000000001DE000-memory.dmp

            Filesize

            1016KB

          • memory/4864-92-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4864-90-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4864-85-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4864-76-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4988-78-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4988-75-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4988-95-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4988-71-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/4996-23-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-97-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/4996-40-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-106-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/4996-42-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-43-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-105-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-102-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/4996-46-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-47-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-48-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-49-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-50-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-51-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-53-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-103-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/4996-22-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-25-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4996-33-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/5080-91-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/5080-79-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/5080-83-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/5080-72-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/5096-20-0x00000000052C0000-0x00000000052D0000-memory.dmp

            Filesize

            64KB

          • memory/5096-17-0x00000000051D0000-0x0000000005206000-memory.dmp

            Filesize

            216KB

          • memory/5096-81-0x00000000080A0000-0x000000000871A000-memory.dmp

            Filesize

            6.5MB

          • memory/5096-84-0x0000000007A50000-0x0000000007A6A000-memory.dmp

            Filesize

            104KB

          • memory/5096-58-0x0000000006D20000-0x0000000006D52000-memory.dmp

            Filesize

            200KB

          • memory/5096-57-0x000000007F580000-0x000000007F590000-memory.dmp

            Filesize

            64KB

          • memory/5096-59-0x0000000073130000-0x000000007317C000-memory.dmp

            Filesize

            304KB

          • memory/5096-21-0x0000000005900000-0x0000000005F28000-memory.dmp

            Filesize

            6.2MB

          • memory/5096-39-0x0000000006120000-0x0000000006186000-memory.dmp

            Filesize

            408KB

          • memory/5096-70-0x0000000007920000-0x00000000079C3000-memory.dmp

            Filesize

            652KB

          • memory/5096-69-0x0000000006D00000-0x0000000006D1E000-memory.dmp

            Filesize

            120KB

          • memory/5096-93-0x0000000007AD0000-0x0000000007ADA000-memory.dmp

            Filesize

            40KB

          • memory/5096-19-0x0000000074690000-0x0000000074E40000-memory.dmp

            Filesize

            7.7MB

          • memory/5096-26-0x0000000005790000-0x00000000057B2000-memory.dmp

            Filesize

            136KB

          • memory/5096-27-0x0000000005830000-0x0000000005896000-memory.dmp

            Filesize

            408KB

          • memory/5096-101-0x0000000007CD0000-0x0000000007D66000-memory.dmp

            Filesize

            600KB

          • memory/5096-52-0x00000000052C0000-0x00000000052D0000-memory.dmp

            Filesize

            64KB

          • memory/5096-45-0x00000000067D0000-0x000000000681C000-memory.dmp

            Filesize

            304KB

          • memory/5096-44-0x0000000006730000-0x000000000674E000-memory.dmp

            Filesize

            120KB

          • memory/5096-104-0x0000000074690000-0x0000000074E40000-memory.dmp

            Filesize

            7.7MB

          • memory/5096-41-0x0000000006350000-0x00000000066A4000-memory.dmp

            Filesize

            3.3MB

          • memory/5096-107-0x0000000007C50000-0x0000000007C61000-memory.dmp

            Filesize

            68KB

          • memory/5096-108-0x0000000007C80000-0x0000000007C8E000-memory.dmp

            Filesize

            56KB

          • memory/5096-109-0x0000000007C90000-0x0000000007CA4000-memory.dmp

            Filesize

            80KB

          • memory/5096-110-0x0000000007D90000-0x0000000007DAA000-memory.dmp

            Filesize

            104KB

          • memory/5096-111-0x0000000007D70000-0x0000000007D78000-memory.dmp

            Filesize

            32KB

          • memory/5096-114-0x0000000074690000-0x0000000074E40000-memory.dmp

            Filesize

            7.7MB