Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/08/2024, 01:19

General

  • Target
    65d633afee85962e40015d907d3592c3be64ba11585e3816717b0870849744d9.exe
  • Size 1015KB
  • Sample240815-bpvefasbkl
  • SHA256 65d633afee85962e40015d907d3592c3be64ba11585e3816717b0870849744d9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • ghost360.zapto.org:4190

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-38SHA0

  • 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.

  • 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 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\65d633afee85962e40015d907d3592c3be64ba11585e3816717b0870849744d9.exe
    "C:\Users\Admin\AppData\Local\Temp\65d633afee85962e40015d907d3592c3be64ba11585e3816717b0870849744d9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2352
    • 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\65d633afee85962e40015d907d3592c3be64ba11585e3816717b0870849744d9.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2568
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hIGcKBg.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\hIGcKBg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD47.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2456
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2540

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 f785b51789835b87001dba882fee479e9e3fb351c6bdf97c076bb3d37a0e6738
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_bi3plqm5.hwi.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bi3plqm5.hwi.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpAD47.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpAD47.tmp
        • Size 1KB
        • SHA256 f2eba2b381122c90b6d20f5a047f9c45120e53e8dfebc9c19af9c2246e24a356
        • MD5 SHA1 SHA512

        memory/2352-6-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/2352-5-0x00000000052D0000-0x000000000536C000-memory.dmp

        memory/2352-4-0x0000000005090000-0x000000000509A000-memory.dmp

        memory/2352-7-0x0000000005BD0000-0x0000000005BEE000-memory.dmp

        memory/2352-8-0x0000000005BF0000-0x0000000005C06000-memory.dmp

        memory/2352-9-0x0000000008C30000-0x0000000008CF0000-memory.dmp

        memory/2352-3-0x0000000004FE0000-0x0000000005072000-memory.dmp

        memory/2352-2-0x00000000054B0000-0x0000000005A54000-memory.dmp

        memory/2352-0-0x000000007530E000-0x000000007530F000-memory.dmp

        memory/2352-48-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/2352-1-0x00000000004F0000-0x00000000005F4000-memory.dmp

        memory/2540-95-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-97-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-91-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-92-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-93-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-101-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-100-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-99-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-44-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-47-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-94-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-45-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-96-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-98-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2540-49-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/2568-28-0x0000000006000000-0x0000000006354000-memory.dmp

        memory/2568-79-0x0000000007B50000-0x0000000007B61000-memory.dmp

        memory/2568-16-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/2568-15-0x00000000057F0000-0x0000000005E18000-memory.dmp

        memory/2568-74-0x0000000007810000-0x00000000078B3000-memory.dmp

        memory/2568-76-0x0000000007950000-0x000000000796A000-memory.dmp

        memory/2568-64-0x0000000073DD0000-0x0000000073E1C000-memory.dmp

        memory/2568-75-0x0000000007F90000-0x000000000860A000-memory.dmp

        memory/2568-19-0x0000000005E20000-0x0000000005E86000-memory.dmp

        memory/2568-17-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/2568-80-0x0000000007B80000-0x0000000007B8E000-memory.dmp

        memory/2568-81-0x0000000007B90000-0x0000000007BA4000-memory.dmp

        memory/2568-18-0x0000000005750000-0x0000000005772000-memory.dmp

        memory/2568-20-0x0000000005E90000-0x0000000005EF6000-memory.dmp

        memory/2568-90-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/2568-14-0x0000000005060000-0x0000000005096000-memory.dmp

        memory/4724-50-0x0000000006380000-0x000000000639E000-memory.dmp

        memory/4724-89-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/4724-83-0x00000000079E0000-0x00000000079E8000-memory.dmp

        memory/4724-82-0x0000000007A00000-0x0000000007A1A000-memory.dmp

        memory/4724-78-0x0000000007940000-0x00000000079D6000-memory.dmp

        memory/4724-77-0x0000000007730000-0x000000000773A000-memory.dmp

        memory/4724-52-0x0000000007320000-0x0000000007352000-memory.dmp

        memory/4724-63-0x0000000007300000-0x000000000731E000-memory.dmp

        memory/4724-53-0x0000000073DD0000-0x0000000073E1C000-memory.dmp

        memory/4724-51-0x0000000006410000-0x000000000645C000-memory.dmp

        memory/4724-43-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/4724-42-0x0000000075300000-0x0000000075AB0000-memory.dmp

        memory/4724-27-0x0000000075300000-0x0000000075AB0000-memory.dmp