Analysis

  • max time kernel
    148s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    07-06-2023 04:21

General

  • Target

    tmp.exe

  • Size

    898KB

  • MD5

    33108fe9d2b46a295190763ebb4083f7

  • SHA1

    28926c7fd4b1271230a0cfcf2d193ef7cd08e17d

  • SHA256

    99e559cde8a3871a1c1d045ff0f141d01aeff386c2798c127fdacdff6b193f17

  • SHA512

    005060e50f1ddc3d721981fe433bd1a6ab9c4b57b965aa83aeab590220bd2a06aa93df25a59d5ed31e3947d85903c4910092632d27e79ad489d9af36d073458f

  • SSDEEP

    12288:1epHyX2+Q6gmk12kka/ZzT9+CnHYNTQErfawt5IPzKi0:1epJHDskkKpT9hGZrfHtUzK

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

divdemoce.duckdns.org:35639

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

    dtas.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-GZATCK

  • 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.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 8 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
        PID:1408
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1872
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
          3⤵
            PID:1692
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
            3⤵
              PID:940
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
              3⤵
                PID:1544
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
                3⤵
                  PID:1552
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
                  3⤵
                    PID:1548
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
                    3⤵
                      PID:1756
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                      C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
                      3⤵
                        PID:1524
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
                        3⤵
                          PID:1884
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                          C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
                          3⤵
                            PID:780
                          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                            C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz"
                            3⤵
                              PID:1876
                            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                              C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\wszvlupoiilspbnvtbp"
                              3⤵
                                PID:996
                              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                                C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\ynmnemapeqdfrhkhcecyre"
                                3⤵
                                  PID:1204
                                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                                  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\ynmnemapeqdfrhkhcecyre"
                                  3⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1804
                                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                                  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\wszvlupoiilspbnvtbp"
                                  3⤵
                                  • Accesses Microsoft Outlook accounts
                                  PID:1928
                                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
                                  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\wszvlupoiilspbnvtbp"
                                  3⤵
                                    PID:1892

                              Network

                              MITRE ATT&CK Matrix ATT&CK v6

                              Collection

                              Email Collection

                              1
                              T1114

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Users\Admin\AppData\Local\Temp\mqtkkbeuuatnfnz
                                Filesize

                                2B

                                MD5

                                f3b25701fe362ec84616a93a45ce9998

                                SHA1

                                d62636d8caec13f04e28442a0a6fa1afeb024bbb

                                SHA256

                                b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                                SHA512

                                98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

                              • C:\Users\Admin\AppData\Roaming\remcos\dtas.dat
                                Filesize

                                144B

                                MD5

                                5586d7507bdaae0a9f4dc8a8b24659b6

                                SHA1

                                7d52ead33be2f4123371dc6a2239937ca2a1d0a5

                                SHA256

                                18988c9d40faaa6e54dcec1c014673a306bb6155f17cbc4dcb16952e44c53c28

                                SHA512

                                2b47f6f8cf02ab86ee2d041518d567083c79becc9f1937e5e9623a43b190611a95c0425c282316935026cf98bae8bde1352f9c82bf7f1123a6c03b866bf432b8

                              • memory/1408-65-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-62-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-66-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-64-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-63-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-67-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-68-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-69-0x00000000000C0000-0x0000000000141000-memory.dmp
                                Filesize

                                516KB

                              • memory/1408-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
                                Filesize

                                4KB

                              • memory/1804-110-0x0000000000400000-0x0000000000424000-memory.dmp
                                Filesize

                                144KB

                              • memory/1804-109-0x0000000000400000-0x0000000000424000-memory.dmp
                                Filesize

                                144KB

                              • memory/1804-108-0x0000000000400000-0x0000000000424000-memory.dmp
                                Filesize

                                144KB

                              • memory/1804-102-0x0000000000400000-0x0000000000424000-memory.dmp
                                Filesize

                                144KB

                              • memory/1872-91-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-89-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-145-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-144-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-81-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-82-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-83-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-85-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-86-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-87-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-88-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-126-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-90-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-138-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-93-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-121-0x0000000010000000-0x0000000010019000-memory.dmp
                                Filesize

                                100KB

                              • memory/1872-137-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-132-0x0000000010000000-0x0000000010019000-memory.dmp
                                Filesize

                                100KB

                              • memory/1872-124-0x0000000010000000-0x0000000010019000-memory.dmp
                                Filesize

                                100KB

                              • memory/1872-79-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
                                Filesize

                                4KB

                              • memory/1872-129-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-128-0x0000000000400000-0x0000000000481000-memory.dmp
                                Filesize

                                516KB

                              • memory/1872-125-0x0000000010000000-0x0000000010019000-memory.dmp
                                Filesize

                                100KB

                              • memory/1876-94-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
                                Filesize

                                4KB

                              • memory/1876-104-0x0000000000400000-0x0000000000478000-memory.dmp
                                Filesize

                                480KB

                              • memory/1876-95-0x0000000000400000-0x0000000000478000-memory.dmp
                                Filesize

                                480KB

                              • memory/1876-100-0x0000000000400000-0x0000000000478000-memory.dmp
                                Filesize

                                480KB

                              • memory/1876-111-0x0000000000400000-0x0000000000478000-memory.dmp
                                Filesize

                                480KB

                              • memory/1876-117-0x0000000000400000-0x0000000000478000-memory.dmp
                                Filesize

                                480KB

                              • memory/1928-120-0x0000000000400000-0x0000000000457000-memory.dmp
                                Filesize

                                348KB

                              • memory/1928-105-0x0000000000400000-0x0000000000457000-memory.dmp
                                Filesize

                                348KB

                              • memory/1928-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
                                Filesize

                                4KB

                              • memory/1928-112-0x0000000000400000-0x0000000000457000-memory.dmp
                                Filesize

                                348KB

                              • memory/1928-98-0x0000000000400000-0x0000000000457000-memory.dmp
                                Filesize

                                348KB

                              • memory/1928-103-0x0000000000400000-0x0000000000457000-memory.dmp
                                Filesize

                                348KB

                              • memory/1992-56-0x0000000000400000-0x000000000044A000-memory.dmp
                                Filesize

                                296KB

                              • memory/1992-58-0x0000000004E70000-0x0000000004EB0000-memory.dmp
                                Filesize

                                256KB

                              • memory/1992-57-0x0000000000460000-0x0000000000478000-memory.dmp
                                Filesize

                                96KB

                              • memory/1992-54-0x0000000000080000-0x0000000000166000-memory.dmp
                                Filesize

                                920KB

                              • memory/1992-55-0x0000000004E70000-0x0000000004EB0000-memory.dmp
                                Filesize

                                256KB

                              • memory/1992-60-0x00000000007D0000-0x00000000007EA000-memory.dmp
                                Filesize

                                104KB

                              • memory/1992-59-0x0000000004E70000-0x0000000004EB0000-memory.dmp
                                Filesize

                                256KB

                              • memory/1992-80-0x0000000004E70000-0x0000000004EB0000-memory.dmp
                                Filesize

                                256KB

                              • memory/1992-61-0x00000000007F0000-0x00000000007F6000-memory.dmp
                                Filesize

                                24KB