Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-12-2024 21:06

General

  • Target

    WaveSourceInstaller.exe

  • Size

    469KB

  • MD5

    e468b718e67495ea73c85d8258059adf

  • SHA1

    dcad70f5c39ab85f900ef1288067dbf51eaeb503

  • SHA256

    fa9f629254a8bbe915bbd587c0c060de580a18992103858a1d16686de8bd717e

  • SHA512

    b4eb6cc848b5ebfc6bab7e1cc033ec468bc8cf2fed72ea912f9fc60d6eaab75664f4627646960dccab2aceefeab9c5acbd2fe1b57d992c62358929b4d840dedb

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSJn9:uiLJbpI7I2WhQqZ7J9

Malware Config

Extracted

Family

remcos

Botnet

WaveSourceLeaked

C2

204.10.194.175:4444

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-46FS9Q

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Remcos family
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WaveSourceInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\WaveSourceInstaller.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2796
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2512
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\Remcos\remcos.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1224
        • C:\ProgramData\Remcos\remcos.exe
          C:\ProgramData\Remcos\remcos.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:4916
          • \??\c:\program files (x86)\internet explorer\iexplore.exe
            "c:\program files (x86)\internet explorer\iexplore.exe"
            5⤵
              PID:1552
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
      1⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:924
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ff8245546f8,0x7ff824554708,0x7ff824554718
        2⤵
          PID:1608
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2068 /prefetch:2
          2⤵
            PID:740
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2220 /prefetch:3
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1740
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2916 /prefetch:8
            2⤵
              PID:3880
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3416 /prefetch:1
              2⤵
                PID:744
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3424 /prefetch:1
                2⤵
                  PID:3872
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4268 /prefetch:1
                  2⤵
                    PID:4452
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4264 /prefetch:1
                    2⤵
                      PID:1840
                    • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3740 /prefetch:8
                      2⤵
                        PID:3404
                      • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3740 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:1768
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3592 /prefetch:1
                        2⤵
                          PID:1644
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3580 /prefetch:1
                          2⤵
                            PID:400
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2056,2570786060339814905,8048755465909993751,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5504 /prefetch:1
                            2⤵
                              PID:3872
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:5020
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:3500

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • C:\ProgramData\Remcos\remcos.exe

                                Filesize

                                469KB

                                MD5

                                e468b718e67495ea73c85d8258059adf

                                SHA1

                                dcad70f5c39ab85f900ef1288067dbf51eaeb503

                                SHA256

                                fa9f629254a8bbe915bbd587c0c060de580a18992103858a1d16686de8bd717e

                                SHA512

                                b4eb6cc848b5ebfc6bab7e1cc033ec468bc8cf2fed72ea912f9fc60d6eaab75664f4627646960dccab2aceefeab9c5acbd2fe1b57d992c62358929b4d840dedb

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                Filesize

                                152B

                                MD5

                                443a627d539ca4eab732bad0cbe7332b

                                SHA1

                                86b18b906a1acd2a22f4b2c78ac3564c394a9569

                                SHA256

                                1e1ad9dce141f5f17ea07c7e9c2a65e707c9943f172b9134b0daf9eef25f0dc9

                                SHA512

                                923b86d75a565c91250110162ce13dd3ef3f6bdde1a83f7af235ed302d4a96b8c9ed722e2152781e699dfcb26bb98afc73f5adb298f8fd673f14c9f28b5f764d

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                Filesize

                                152B

                                MD5

                                99afa4934d1e3c56bbce114b356e8a99

                                SHA1

                                3f0e7a1a28d9d9c06b6663df5d83a65c84d52581

                                SHA256

                                08e098bb97fd91d815469cdfd5568607a3feca61f18b6b5b9c11b531fde206c8

                                SHA512

                                76686f30ed68144cf943b80ac10b52c74eee84f197cee3c24ef7845ef44bdb5586b6e530824543deeed59417205ac0e2559808bcb46450504106ac8f4c95b9da

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\4cc48c3d-229c-4817-87e6-567706d6bbc8.tmp

                                Filesize

                                5KB

                                MD5

                                635bfc3369fed7188faa7acd0b2df269

                                SHA1

                                c5ac07419ce6ee6762a2981649872f03aa412c0c

                                SHA256

                                ef7ee2c64ec27c81a68ffd7e0872bc95d32ffc08068e8a74fdf407d3553798af

                                SHA512

                                3d84aa09e09bfdc7ec2365f5ca980d4cd35d3825c793f564778b403844eeddd519597ef96357fdedc77f5c74d031547e72bffad4683f00cdc9b0126d863afb90

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

                                Filesize

                                180B

                                MD5

                                00a455d9d155394bfb4b52258c97c5e5

                                SHA1

                                2761d0c955353e1982a588a3df78f2744cfaa9df

                                SHA256

                                45a13c77403533b12fbeeeb580e1c32400ca17a32e15caa8c8e6a180ece27fed

                                SHA512

                                9553f8553332afbb1b4d5229bbf58aed7a51571ab45cbf01852b36c437811befcbc86f80ec422f222963fa7dabb04b0c9ae72e9d4ff2eeb1e58cde894fbe234f

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                Filesize

                                6KB

                                MD5

                                ca5ff4d0fdfb75d2efe7921b6e6ed26e

                                SHA1

                                ba69537a2fb8d133d3b17207bf8dd44dddab5059

                                SHA256

                                19d12e05f0f009b021b6ee30776814a186d6520ac46656d049b9693e7a877426

                                SHA512

                                0157c833ee8b5e8331301d54f212c7e28df51cf4652da4c6088e6b9be56fdfd4e5d757a85d8cb97674405c9ca275fe87556274d45827d951c73477844a5dae2e

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                Filesize

                                6KB

                                MD5

                                b2adbcb30182046ec19f7d7eafd2aa8d

                                SHA1

                                07ded9c49a2f4f38eeaa51be0528d5a9449e3ee4

                                SHA256

                                6bb632f24cb1567e44e47662b932d09a867b87f450c0007861694ff5c8d2093c

                                SHA512

                                167a782a179922c9a1d0114c2574875ff66f06222b5a444432b468c3f5fc85b35fe01908434de669c21c8925c51ff68fe58a7d97e9d88a28aeebc7b2139ea9f1

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                Filesize

                                6KB

                                MD5

                                6530dcec1d2ee04699a6b0b0a21eb8e9

                                SHA1

                                d13b1862b313d8b46d9fd8793eed2bad7c4a4945

                                SHA256

                                f92131cb357aa3bede6e62813db871807a1246829356e99fc77b43777da30464

                                SHA512

                                36fafa561ccca92183df11e0fbce6a58489c323650a9f693ca6a6ade3aabb800b73c56b6cae0e56da11a060e0628453a129800b630276362f1c931c9c143cc71

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                Filesize

                                16B

                                MD5

                                46295cac801e5d4857d09837238a6394

                                SHA1

                                44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                SHA256

                                0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                SHA512

                                8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                Filesize

                                16B

                                MD5

                                206702161f94c5cd39fadd03f4014d98

                                SHA1

                                bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                SHA256

                                1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                SHA512

                                0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                Filesize

                                11KB

                                MD5

                                c7c954712725b38e977e52cafe71acd4

                                SHA1

                                9b6e372e68ec3d519aefd6ddf04a8b3e2114ae7f

                                SHA256

                                a9d35dc13071ff8c7fa6c7bf225112fe67b9b69c191a625f6f47b7f59033c0f7

                                SHA512

                                a2cdd048e3ec56c58a5a427a2925780a1e2877ce6cbb282e5a06e4ecf0168e62996f902c2cabc00e4f1de5dfc70be730cda42aa4efec8dba5dd893728f0f8e14

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                Filesize

                                10KB

                                MD5

                                39cac5bd2bf2f21d56fd471377a2f660

                                SHA1

                                4fc047573fd9dac8ccdd040637d30f8408a9978f

                                SHA256

                                8a29857542cd810cd0c8723e554166a7760b9d93ea80eb80ca234e89ce236350

                                SHA512

                                bda561c467e2a09c84142b9ea9fc6f2e0c09049104c47dc47f7084567ad0f12b95c62b2c178946ba253d86c095465741c30d4c22b63480887be1a605dadbcd67

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

                                Filesize

                                386B

                                MD5

                                1ec6289c6fd4c2ded6b2836ed28cbeb5

                                SHA1

                                c4e08195e6c640eb8860acc03fda1d649b4fe070

                                SHA256

                                6efdc40f9eb217f879607614e928b65bff759e424f3efb31faceb2a043c32dc2

                                SHA512

                                20bc46f4dee22f75f15c402c7c2eaee60fff7dd92548050585571dcbefd59485cc249c06bc3f1aac7a138e5ae67c0c3918b46ffa24c8b0f1b092e2f6b6e21288

                              • memory/1552-11-0x0000000000900000-0x000000000097F000-memory.dmp

                                Filesize

                                508KB

                              • memory/1552-10-0x0000000000900000-0x000000000097F000-memory.dmp

                                Filesize

                                508KB

                              • memory/1552-9-0x0000000000900000-0x000000000097F000-memory.dmp

                                Filesize

                                508KB

                              • memory/1552-8-0x0000000000900000-0x000000000097F000-memory.dmp

                                Filesize

                                508KB