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
    24-11-2024 07:32

General

  • Target

    PaymentTransferRequestForm.bat.exe

  • Size

    1.2MB

  • MD5

    fc5a80adf45d78ffa834283d0a78f9f6

  • SHA1

    6865dec6f71546ea01420295b7175038c3a81ec4

  • SHA256

    e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c

  • SHA512

    27636cd0d31e3b1ff384869f1f2be6c23d7f02ecd70027c5d689de0893835d070218596a941472481d637cc6253ed3f2405991a6af4772596cc88f909a7dd7cb

  • SSDEEP

    24576:RYdgfvzAKzxWCC9vSA6GRdsttHVqowvVpBdlvlOUa:rzAcWFt96ydyQow5dldna

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

212.162.149.226:9285

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    AppUpdate

  • 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-VCJ8ZS

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    AppUpdate

  • 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 4 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 3 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 12 IoCs

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

  • Modifies registry class 1 IoCs
  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PaymentTransferRequestForm.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\PaymentTransferRequestForm.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:1204
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PaymentTransferRequestForm.bat.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iKgKaogJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3468
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iKgKaogJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE426.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4720
    • C:\Users\Admin\AppData\Local\Temp\PaymentTransferRequestForm.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\PaymentTransferRequestForm.bat.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4660
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1640
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\AppUpdate\remcos.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2704
          • C:\ProgramData\AppUpdate\remcos.exe
            C:\ProgramData\AppUpdate\remcos.exe
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3808
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\ProgramData\AppUpdate\remcos.exe"
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2768
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iKgKaogJ.exe"
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2728
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iKgKaogJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A8F.tmp"
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2840
            • C:\ProgramData\AppUpdate\remcos.exe
              "C:\ProgramData\AppUpdate\remcos.exe"
              6⤵
              • Executes dropped EXE
              PID:2492
            • C:\ProgramData\AppUpdate\remcos.exe
              "C:\ProgramData\AppUpdate\remcos.exe"
              6⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              PID:3048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\AppUpdate\remcos.exe

    Filesize

    1.2MB

    MD5

    fc5a80adf45d78ffa834283d0a78f9f6

    SHA1

    6865dec6f71546ea01420295b7175038c3a81ec4

    SHA256

    e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c

    SHA512

    27636cd0d31e3b1ff384869f1f2be6c23d7f02ecd70027c5d689de0893835d070218596a941472481d637cc6253ed3f2405991a6af4772596cc88f909a7dd7cb

  • 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

    f62a59bc77fa5d2294dfe09c7e056c49

    SHA1

    af8e0b839a7500914c276b619ec82ea577d5fbfc

    SHA256

    1378c8f12c7d3db233b9ad1f3e59de5ae6c230ce5195dd2e2de51ff4887423b8

    SHA512

    9b4d08cbe04f2f507fb3f2f2dd1bb7f6c80eb03e49b7934f7ca950b448abac1f4eefc78c7d2534bfbab2930f2e6c609d4a6cd10da583960cad640d92c2701e43

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

    Filesize

    18KB

    MD5

    a056a797e35442f7bdf0a599ffaddba1

    SHA1

    f82af6e472fe2558e8d48fcbf0847fc9535e1e70

    SHA256

    006d4818c58a56875865e9cb70169fb12053b1d568410c02e75d7b0c025c65a7

    SHA512

    50374610cf6acc0ffaa2714354a3f0758ffcc203d74875747ce8bf54717dafab5875b08405aff326a5eb137276dde8c1da5875e5529753b10028087e74a777a9

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wuvloem3.0by.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\install.vbs

    Filesize

    392B

    MD5

    046708368578d720d91fb9ceecec742e

    SHA1

    1dc732f67f48a1d5694f4cf14a8d279dbd1d6ee6

    SHA256

    04f4edc28e97a16f93cf7acac864aba17cc467282550ae61baac719262be6f5e

    SHA512

    9106f645ee74c9e061fcb396a00d706512d41054a356125f26a10d42390d8f0d3ea3dd785393bf5de358b62464ec3c0f7d2e27411e87bb408581f820c427e7f0

  • C:\Users\Admin\AppData\Local\Temp\tmpE426.tmp

    Filesize

    1KB

    MD5

    9229c6209bd7c76396881ac9419edf66

    SHA1

    dcc3166248065482a2613cf1d6af92e420c0fafe

    SHA256

    3add9d82d6a22817675ce92419e9fc47d48918ae94ce8f65c6a17ed8489270a8

    SHA512

    9d30d11018d62615d37cd7d9737f1b1b11b9b5429bc626b7b02e4f6e50b0ad405616fcbc0b616f5b0d6c0fb1185c983f80e4b94ccdb93f4463823a23b3dbe57d

  • memory/1204-6-0x0000000005C80000-0x0000000005D1C000-memory.dmp

    Filesize

    624KB

  • memory/1204-5-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-9-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-10-0x0000000007510000-0x00000000075D0000-memory.dmp

    Filesize

    768KB

  • memory/1204-7-0x0000000005D20000-0x0000000005D32000-memory.dmp

    Filesize

    72KB

  • memory/1204-8-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

    Filesize

    4KB

  • memory/1204-1-0x0000000000EE0000-0x0000000001012000-memory.dmp

    Filesize

    1.2MB

  • memory/1204-2-0x0000000005E00000-0x00000000063A4000-memory.dmp

    Filesize

    5.6MB

  • memory/1204-3-0x00000000058F0000-0x0000000005982000-memory.dmp

    Filesize

    584KB

  • memory/1204-0-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

    Filesize

    4KB

  • memory/1204-56-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-4-0x0000000005BD0000-0x0000000005BDA000-memory.dmp

    Filesize

    40KB

  • memory/2728-147-0x00000000758A0000-0x00000000758EC000-memory.dmp

    Filesize

    304KB

  • memory/2768-160-0x0000000007AF0000-0x0000000007B04000-memory.dmp

    Filesize

    80KB

  • memory/2768-105-0x0000000005FF0000-0x0000000006344000-memory.dmp

    Filesize

    3.3MB

  • memory/2768-132-0x00000000065D0000-0x000000000661C000-memory.dmp

    Filesize

    304KB

  • memory/2768-136-0x00000000758A0000-0x00000000758EC000-memory.dmp

    Filesize

    304KB

  • memory/2768-146-0x00000000077D0000-0x0000000007873000-memory.dmp

    Filesize

    652KB

  • memory/2768-157-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

    Filesize

    68KB

  • memory/3008-64-0x000000006FA60000-0x000000006FAAC000-memory.dmp

    Filesize

    304KB

  • memory/3008-89-0x0000000007E70000-0x0000000007F06000-memory.dmp

    Filesize

    600KB

  • memory/3008-21-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3008-58-0x0000000006980000-0x00000000069CC000-memory.dmp

    Filesize

    304KB

  • memory/3008-18-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3008-55-0x00000000068C0000-0x00000000068DE000-memory.dmp

    Filesize

    120KB

  • memory/3008-25-0x0000000006210000-0x0000000006276000-memory.dmp

    Filesize

    408KB

  • memory/3008-24-0x0000000005A00000-0x0000000005A22000-memory.dmp

    Filesize

    136KB

  • memory/3008-43-0x00000000063F0000-0x0000000006744000-memory.dmp

    Filesize

    3.3MB

  • memory/3008-63-0x0000000007860000-0x0000000007892000-memory.dmp

    Filesize

    200KB

  • memory/3008-101-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3008-74-0x0000000007AA0000-0x0000000007ABE000-memory.dmp

    Filesize

    120KB

  • memory/3008-76-0x0000000007AC0000-0x0000000007B63000-memory.dmp

    Filesize

    652KB

  • memory/3008-26-0x0000000006280000-0x00000000062E6000-memory.dmp

    Filesize

    408KB

  • memory/3008-86-0x0000000008230000-0x00000000088AA000-memory.dmp

    Filesize

    6.5MB

  • memory/3008-16-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3008-93-0x0000000007F30000-0x0000000007F4A000-memory.dmp

    Filesize

    104KB

  • memory/3008-17-0x0000000005B70000-0x0000000006198000-memory.dmp

    Filesize

    6.2MB

  • memory/3008-90-0x0000000007DF0000-0x0000000007E01000-memory.dmp

    Filesize

    68KB

  • memory/3008-15-0x0000000002FA0000-0x0000000002FD6000-memory.dmp

    Filesize

    216KB

  • memory/3048-168-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-164-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-159-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-165-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-167-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-166-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-133-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-135-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-134-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-120-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-119-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-118-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3048-169-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3468-75-0x000000006FA60000-0x000000006FAAC000-memory.dmp

    Filesize

    304KB

  • memory/3468-94-0x0000000007DA0000-0x0000000007DA8000-memory.dmp

    Filesize

    32KB

  • memory/3468-87-0x0000000007A80000-0x0000000007A9A000-memory.dmp

    Filesize

    104KB

  • memory/3468-20-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3468-19-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3468-100-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3468-88-0x0000000007AF0000-0x0000000007AFA000-memory.dmp

    Filesize

    40KB

  • memory/3468-23-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3468-92-0x0000000007CC0000-0x0000000007CD4000-memory.dmp

    Filesize

    80KB

  • memory/3468-91-0x0000000007CB0000-0x0000000007CBE000-memory.dmp

    Filesize

    56KB

  • memory/3808-102-0x0000000005900000-0x0000000005912000-memory.dmp

    Filesize

    72KB

  • memory/4660-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4660-57-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4660-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4660-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4660-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB