Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 12:39

General

  • Target

    Quotation Ref No. CODE PCBMCPUG02-ORDER 11524-FOUND.exe

  • Size

    908KB

  • MD5

    0a91b0a960e1cb925434f0ded97e30b7

  • SHA1

    ea0ed432c0cdb5f86cde1b17850a77b68ad71af4

  • SHA256

    f57e0e55aa4691d0502f6da67d4ecb2823c98bd319c5208ae44a518a0a17392b

  • SHA512

    37d4fbd29f3a5b274545f4864f9005b814410e35abc94c106e433ecd5c403a230eb2ca38d1d20aaa1f29ad0fbef5997c0c0cae37c2237b165e2eb5778dd2f7e4

  • SSDEEP

    24576:Mo7x/alQteiW/C+sHTTPrCehcxQv4Zj6CSy:Mc/zhWK+vC4ZIy

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

206.189.218.238:4782

206.189.218.238:2286

206.189.218.238:3363

206.189.218.238:3386

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-NJK093

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation Ref No. CODE PCBMCPUG02-ORDER 11524-FOUND.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation Ref No. CODE PCBMCPUG02-ORDER 11524-FOUND.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:4996
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wGvcmEX.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4724
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wGvcmEX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp172.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4796
    • C:\Users\Admin\AppData\Local\Temp\Quotation Ref No. CODE PCBMCPUG02-ORDER 11524-FOUND.exe
      "C:\Users\Admin\AppData\Local\Temp\Quotation Ref No. CODE PCBMCPUG02-ORDER 11524-FOUND.exe"
      2⤵
        PID:4936
      • C:\Users\Admin\AppData\Local\Temp\Quotation Ref No. CODE PCBMCPUG02-ORDER 11524-FOUND.exe
        "C:\Users\Admin\AppData\Local\Temp\Quotation Ref No. CODE PCBMCPUG02-ORDER 11524-FOUND.exe"
        2⤵
        • Checks computer location settings
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2228
        • C:\ProgramData\Remcos\remcos.exe
          "C:\ProgramData\Remcos\remcos.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:656
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wGvcmEX.exe"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1748
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wGvcmEX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9100.tmp"
            4⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3328
          • C:\ProgramData\Remcos\remcos.exe
            "C:\ProgramData\Remcos\remcos.exe"
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:2244

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Remcos\logs.dat

      Filesize

      144B

      MD5

      044009d358ae332bea6548f7263e539a

      SHA1

      469f47417a5c9263bdc38d529723aba887fdb71f

      SHA256

      ec6552272a7f3f2b2c34bad8b6e3b7c36ade4990bc1adc5f41611217ab829893

      SHA512

      74a9690c67c51374a503bc6ed3258bbc16ebca3011167ca98f078dc7c2b8f952117a5550b9e6b9034dc8ac8da7f85a3e83d3d3c4e8b2dcc6038441bee64b2f00

    • C:\ProgramData\Remcos\remcos.exe

      Filesize

      908KB

      MD5

      0a91b0a960e1cb925434f0ded97e30b7

      SHA1

      ea0ed432c0cdb5f86cde1b17850a77b68ad71af4

      SHA256

      f57e0e55aa4691d0502f6da67d4ecb2823c98bd319c5208ae44a518a0a17392b

      SHA512

      37d4fbd29f3a5b274545f4864f9005b814410e35abc94c106e433ecd5c403a230eb2ca38d1d20aaa1f29ad0fbef5997c0c0cae37c2237b165e2eb5778dd2f7e4

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      1857d7c26c8962f9e78f63e8ed80c753

      SHA1

      7c9e0a41c17a3c3770be8446c77ec9ce90da12ff

      SHA256

      d6b2f7e6589460a225131ff95cbeacd318f1d0deed6af96989cfebbb751f7944

      SHA512

      66744292fc1416913d9209e5dfe007d2b15c41e5b74061826e0bfeb635f23465f5d25d9a2e68f8caf410152a3cf5ec60711f383339b28420545282b3e1273014

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_psxgxl0o.bpz.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp172.tmp

      Filesize

      1KB

      MD5

      b7ac3d8eac1434ac67ec08528d2acfeb

      SHA1

      610cb0330dee84cf9c2377382e97d3304f562e3b

      SHA256

      5f39610953d0ac95d3c4a0e53c5976e04fd27ba4f5dc8ea0192bd5d8909f4f58

      SHA512

      ca9ed984fc3b2da059586a36cfe87eb251cb58e51cd35b796339159e805518132dd9fd6d160dfdc88b3b6e12db2b953bf3512c870bb593fa897569e7023762d8

    • memory/656-78-0x0000000005670000-0x0000000005682000-memory.dmp

      Filesize

      72KB

    • memory/1748-116-0x0000000007C10000-0x0000000007C21000-memory.dmp

      Filesize

      68KB

    • memory/1748-92-0x0000000006030000-0x0000000006384000-memory.dmp

      Filesize

      3.3MB

    • memory/1748-104-0x0000000006C40000-0x0000000006C8C000-memory.dmp

      Filesize

      304KB

    • memory/1748-105-0x0000000070AA0000-0x0000000070AEC000-memory.dmp

      Filesize

      304KB

    • memory/1748-115-0x0000000007960000-0x0000000007A03000-memory.dmp

      Filesize

      652KB

    • memory/1748-117-0x0000000007C50000-0x0000000007C64000-memory.dmp

      Filesize

      80KB

    • memory/2228-24-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2228-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2228-23-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2228-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2228-52-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2244-89-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2244-84-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2244-90-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2244-123-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2244-85-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2244-129-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2244-137-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/4724-20-0x00000000051C0000-0x00000000051E2000-memory.dmp

      Filesize

      136KB

    • memory/4724-74-0x00000000077D0000-0x00000000077D8000-memory.dmp

      Filesize

      32KB

    • memory/4724-41-0x0000000006250000-0x000000000629C000-memory.dmp

      Filesize

      304KB

    • memory/4724-28-0x0000000005B50000-0x0000000005EA4000-memory.dmp

      Filesize

      3.3MB

    • memory/4724-15-0x0000000002890000-0x00000000028C6000-memory.dmp

      Filesize

      216KB

    • memory/4724-53-0x0000000006760000-0x0000000006792000-memory.dmp

      Filesize

      200KB

    • memory/4724-54-0x0000000074E40000-0x0000000074E8C000-memory.dmp

      Filesize

      304KB

    • memory/4724-64-0x0000000006740000-0x000000000675E000-memory.dmp

      Filesize

      120KB

    • memory/4724-65-0x0000000007160000-0x0000000007203000-memory.dmp

      Filesize

      652KB

    • memory/4724-66-0x0000000007AF0000-0x000000000816A000-memory.dmp

      Filesize

      6.5MB

    • memory/4724-67-0x00000000074B0000-0x00000000074CA000-memory.dmp

      Filesize

      104KB

    • memory/4724-68-0x0000000007520000-0x000000000752A000-memory.dmp

      Filesize

      40KB

    • memory/4724-69-0x0000000007730000-0x00000000077C6000-memory.dmp

      Filesize

      600KB

    • memory/4724-70-0x00000000076B0000-0x00000000076C1000-memory.dmp

      Filesize

      68KB

    • memory/4724-71-0x00000000076E0000-0x00000000076EE000-memory.dmp

      Filesize

      56KB

    • memory/4724-72-0x00000000076F0000-0x0000000007704000-memory.dmp

      Filesize

      80KB

    • memory/4724-73-0x00000000077F0000-0x000000000780A000-memory.dmp

      Filesize

      104KB

    • memory/4724-40-0x0000000006190000-0x00000000061AE000-memory.dmp

      Filesize

      120KB

    • memory/4724-77-0x00000000745D0000-0x0000000074D80000-memory.dmp

      Filesize

      7.7MB

    • memory/4724-22-0x0000000005A10000-0x0000000005A76000-memory.dmp

      Filesize

      408KB

    • memory/4724-21-0x00000000059A0000-0x0000000005A06000-memory.dmp

      Filesize

      408KB

    • memory/4724-17-0x0000000005300000-0x0000000005928000-memory.dmp

      Filesize

      6.2MB

    • memory/4724-18-0x00000000745D0000-0x0000000074D80000-memory.dmp

      Filesize

      7.7MB

    • memory/4724-16-0x00000000745D0000-0x0000000074D80000-memory.dmp

      Filesize

      7.7MB

    • memory/4996-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

      Filesize

      4KB

    • memory/4996-39-0x00000000745D0000-0x0000000074D80000-memory.dmp

      Filesize

      7.7MB

    • memory/4996-10-0x0000000007AC0000-0x0000000007B84000-memory.dmp

      Filesize

      784KB

    • memory/4996-9-0x00000000745D0000-0x0000000074D80000-memory.dmp

      Filesize

      7.7MB

    • memory/4996-8-0x0000000005840000-0x0000000005852000-memory.dmp

      Filesize

      72KB

    • memory/4996-7-0x00000000745DE000-0x00000000745DF000-memory.dmp

      Filesize

      4KB

    • memory/4996-6-0x0000000005570000-0x000000000560C000-memory.dmp

      Filesize

      624KB

    • memory/4996-5-0x0000000005410000-0x000000000541A000-memory.dmp

      Filesize

      40KB

    • memory/4996-4-0x00000000745D0000-0x0000000074D80000-memory.dmp

      Filesize

      7.7MB

    • memory/4996-3-0x0000000005370000-0x0000000005402000-memory.dmp

      Filesize

      584KB

    • memory/4996-2-0x0000000005A60000-0x0000000006004000-memory.dmp

      Filesize

      5.6MB

    • memory/4996-1-0x00000000009D0000-0x0000000000ABA000-memory.dmp

      Filesize

      936KB