Analysis

  • max time kernel
    148s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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) 26 IoCs
  • Detects executables built or packed with MPress PE compressor 20 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 7 IoCs
  • 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 25 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
    "C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2300
    • 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:2616
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LCIBkTUxHQE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2572
    • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
      "C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"
      2⤵
        PID:2620
      • 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:2164
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\puwx"
          3⤵
            PID:1076
          • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
            C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\puwx"
            3⤵
              PID:1340
            • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
              C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\puwx"
              3⤵
                PID:1348
              • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
                C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\puwx"
                3⤵
                  PID:2528
                • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
                  C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\puwx"
                  3⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:836
                • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
                  C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\zwbqcel"
                  3⤵
                    PID:1168
                  • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
                    C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\zwbqcel"
                    3⤵
                    • Accesses Microsoft Outlook accounts
                    PID:1308
                  • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
                    C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\bqobvwvfkd"
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2904

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

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

                      Filesize

                      2B

                      MD5

                      f3b25701fe362ec84616a93a45ce9998

                      SHA1

                      d62636d8caec13f04e28442a0a6fa1afeb024bbb

                      SHA256

                      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                      SHA512

                      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

                    • C:\Users\Admin\AppData\Local\Temp\tmp52F.tmp

                      Filesize

                      1KB

                      MD5

                      719dd6225e643df6b74c3e0c5a0c6f9f

                      SHA1

                      51e2209483b1543848f0e3b9619a08fdd4cdf56a

                      SHA256

                      10e34ecc6b4cf3f66082247e77f8b92b7f810e831f835e46f191f9bd46dad5d4

                      SHA512

                      ba6a618b499ab51bde656217eee55b475d0bc344ed2c78982c3c74f418292cb9f2b5022d9381f37c4217811cc611975eea1e6f2ae0c35ea461e5ca0fad8c59a8

                    • memory/836-56-0x0000000000400000-0x0000000000478000-memory.dmp

                      Filesize

                      480KB

                    • memory/836-80-0x0000000000400000-0x0000000000478000-memory.dmp

                      Filesize

                      480KB

                    • memory/836-63-0x0000000000400000-0x0000000000478000-memory.dmp

                      Filesize

                      480KB

                    • memory/836-58-0x0000000000400000-0x0000000000478000-memory.dmp

                      Filesize

                      480KB

                    • memory/1308-89-0x0000000000400000-0x0000000000457000-memory.dmp

                      Filesize

                      348KB

                    • memory/1308-67-0x0000000000400000-0x0000000000457000-memory.dmp

                      Filesize

                      348KB

                    • memory/1308-69-0x0000000000400000-0x0000000000457000-memory.dmp

                      Filesize

                      348KB

                    • memory/1308-65-0x0000000000400000-0x0000000000457000-memory.dmp

                      Filesize

                      348KB

                    • memory/1308-62-0x0000000000400000-0x0000000000457000-memory.dmp

                      Filesize

                      348KB

                    • memory/1308-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2164-48-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-22-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-24-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-26-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-17-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-28-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2164-32-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-34-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-97-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-96-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-95-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-94-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-93-0x0000000010000000-0x0000000010019000-memory.dmp

                      Filesize

                      100KB

                    • memory/2164-40-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-41-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-42-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-43-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-44-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-45-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-46-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-47-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-92-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-50-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-91-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-52-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-53-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-18-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-20-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-16-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-90-0x0000000000400000-0x0000000000482000-memory.dmp

                      Filesize

                      520KB

                    • memory/2164-88-0x0000000010000000-0x0000000010019000-memory.dmp

                      Filesize

                      100KB

                    • memory/2164-87-0x0000000010000000-0x0000000010019000-memory.dmp

                      Filesize

                      100KB

                    • memory/2164-85-0x0000000010000000-0x0000000010019000-memory.dmp

                      Filesize

                      100KB

                    • memory/2164-86-0x0000000010000000-0x0000000010019000-memory.dmp

                      Filesize

                      100KB

                    • memory/2164-82-0x0000000010000000-0x0000000010019000-memory.dmp

                      Filesize

                      100KB

                    • memory/2300-7-0x0000000074620000-0x0000000074D0E000-memory.dmp

                      Filesize

                      6.9MB

                    • memory/2300-8-0x0000000004D40000-0x0000000004D80000-memory.dmp

                      Filesize

                      256KB

                    • memory/2300-35-0x0000000074620000-0x0000000074D0E000-memory.dmp

                      Filesize

                      6.9MB

                    • memory/2300-0-0x00000000000B0000-0x00000000001AE000-memory.dmp

                      Filesize

                      1016KB

                    • memory/2300-3-0x0000000000750000-0x0000000000764000-memory.dmp

                      Filesize

                      80KB

                    • memory/2300-2-0x0000000004D40000-0x0000000004D80000-memory.dmp

                      Filesize

                      256KB

                    • memory/2300-5-0x0000000001F20000-0x0000000001F2E000-memory.dmp

                      Filesize

                      56KB

                    • memory/2300-4-0x0000000001F10000-0x0000000001F1A000-memory.dmp

                      Filesize

                      40KB

                    • memory/2300-6-0x0000000004D80000-0x0000000004E46000-memory.dmp

                      Filesize

                      792KB

                    • memory/2300-1-0x0000000074620000-0x0000000074D0E000-memory.dmp

                      Filesize

                      6.9MB

                    • memory/2616-51-0x000000006ECA0000-0x000000006F24B000-memory.dmp

                      Filesize

                      5.7MB

                    • memory/2616-39-0x00000000026D0000-0x0000000002710000-memory.dmp

                      Filesize

                      256KB

                    • memory/2616-38-0x00000000026D0000-0x0000000002710000-memory.dmp

                      Filesize

                      256KB

                    • memory/2616-37-0x000000006ECA0000-0x000000006F24B000-memory.dmp

                      Filesize

                      5.7MB

                    • memory/2616-36-0x000000006ECA0000-0x000000006F24B000-memory.dmp

                      Filesize

                      5.7MB

                    • memory/2904-73-0x0000000000400000-0x0000000000424000-memory.dmp

                      Filesize

                      144KB

                    • memory/2904-70-0x0000000000400000-0x0000000000424000-memory.dmp

                      Filesize

                      144KB

                    • memory/2904-72-0x0000000000400000-0x0000000000424000-memory.dmp

                      Filesize

                      144KB

                    • memory/2904-75-0x0000000000400000-0x0000000000424000-memory.dmp

                      Filesize

                      144KB

                    • memory/2904-74-0x0000000000400000-0x0000000000424000-memory.dmp

                      Filesize

                      144KB