Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 02:43

General

  • Target

    9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe

  • Size

    1.0MB

  • MD5

    da64ef3f58dcd1477b91418255568f70

  • SHA1

    386e418b3d816c00ec25b084a2fc9ad2c009e887

  • SHA256

    9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6

  • SHA512

    d9b443729cd244629c3416d94dae0413e7288e8fc3bb1b74758c46d7efa8265600a7f4c2231918ab434951385d9e54c0fba6c25d04416266d7642bebcec97dd8

  • SSDEEP

    24576:ug/fo38qzl/vo8VyMKm62wPLOfsbd7384gmRF:xvqzl48AMNGOfs57M4tR

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

81.161.238.174:46098

127.0.0.1:46098

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-UZGQA3

  • 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 2 IoCs

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

  • 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 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
    "C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1800
    • 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\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe"
      2⤵
      • 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\gAGKIpbVdGGk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3024
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gAGKIpbVdGGk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7FE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2760
    • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
      "C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2616
      • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
        C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\tsmoetmipwodhrxscscmcnnva"
        3⤵
          PID:2100
        • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
          C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\tsmoetmipwodhrxscscmcnnva"
          3⤵
            PID:2592
          • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
            C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\tsmoetmipwodhrxscscmcnnva"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:1484
          • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
            C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\duayfmwbdegqkxmwuvwgfszejhwjc"
            3⤵
              PID:668
            • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
              C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\duayfmwbdegqkxmwuvwgfszejhwjc"
              3⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:2148
            • C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe
              C:\Users\Admin\AppData\Local\Temp\9b4391946e6ef750cd4790bbf6a35a0f2c43d10dd0475827e50946d8eea893b6.exe /stext "C:\Users\Admin\AppData\Local\Temp\gpfrgehdrmyvuliadgjhpfuvjogsdgqs"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:1036

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpE7FE.tmp

          Filesize

          1KB

          MD5

          eda4e4dd0c068c078a2752195f8e3f8e

          SHA1

          2bf496d72fec0b9a84726b8ef137489d18591599

          SHA256

          ee5d5a36252136aba5bb21d522d2766d3fb12c857e5e0670612f3840218504f6

          SHA512

          67d9432be6d894c9cb4a09f7b66644dbbf9c2d69bc4a24d92fc358d52895cb24d1c9ae8acd44426734a1019fa54b60e05b78828ae5bf10e46d72173affc13f38

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

          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\BB1TPJ2OMKVRD0GEASQ8.temp

          Filesize

          7KB

          MD5

          824032f1258d0eb0396eb4987d5d18a4

          SHA1

          30bef5acd671c47b97222710b7d2f1f069a44560

          SHA256

          dbb96f045b1793fbaf77e175222e2897cf76968d740accc48ad9dba040b1641e

          SHA512

          af6add1b25a8c8ccc87dfb658a073401ee158059d3fc61d6693ac178ac13522dde6306cdae2580196fd200f823cc7cbaa7975a4951cf4c7533a6ac6ea1884de2

        • memory/1036-63-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1036-62-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1036-61-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1484-56-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1484-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/1484-54-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1484-55-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1800-5-0x00000000746F0000-0x0000000074DDE000-memory.dmp

          Filesize

          6.9MB

        • memory/1800-6-0x000000000A780000-0x000000000A840000-memory.dmp

          Filesize

          768KB

        • memory/1800-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

          Filesize

          4KB

        • memory/1800-41-0x00000000746F0000-0x0000000074DDE000-memory.dmp

          Filesize

          6.9MB

        • memory/1800-4-0x00000000746FE000-0x00000000746FF000-memory.dmp

          Filesize

          4KB

        • memory/1800-3-0x00000000006A0000-0x00000000006BC000-memory.dmp

          Filesize

          112KB

        • memory/1800-2-0x00000000746F0000-0x0000000074DDE000-memory.dmp

          Filesize

          6.9MB

        • memory/1800-1-0x00000000000F0000-0x00000000001FC000-memory.dmp

          Filesize

          1.0MB

        • memory/2148-59-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2148-64-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2148-58-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2616-39-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2616-23-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-42-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-43-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-45-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-47-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-44-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-49-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-50-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-52-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-51-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-25-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-27-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-29-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-31-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-33-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-21-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-38-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-40-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-19-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-37-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-36-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-70-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2616-74-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2616-73-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2616-75-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-76-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-77-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-78-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-79-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-80-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-81-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2616-82-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB