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Analysis

  • max time kernel
    132s
  • max time network
    152s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250128-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250128-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    04/02/2025, 16:05

General

  • Target

    cjrimgid.exe

  • Size

    120KB

  • MD5

    807dadd8710a7b570ed237fd7cd1aa4b

  • SHA1

    d0e3a3a2b73bb2f3374a58914c8e35034ed5744d

  • SHA256

    7e18ae103ce6fd596459cf0d5fc49832cdbd19a5780b0f2db934c2b649bc2080

  • SHA512

    2270262a8bfe23ce2fac23e7208113be2fec093c3edd7aec456df6738cb19c02d5955c33d64df766154967d28a32947368bb2efaa6ec742031db07bce470d7f6

  • SSDEEP

    3072:FEFRh0auCcJVwDjwzTC2SCn/FtVQenIuxIGWsnRR9pLTfKvXFD:W3h0aMJ+Hw3Pgen79/CvV

Malware Config

Extracted

Family

vidar

C2

https://t.me/sok33tn

https://steamcommunity.com/profiles/76561199824159981

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Signatures

  • Detect Vidar Stealer 2 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar family
  • Uses browser remote debugging 2 TTPs 9 IoCs

    Can be used control the browser and steal sensitive information such as credentials and session cookies.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

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

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

  • Checks processor information in registry 2 TTPs 5 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 8 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cjrimgid.exe
    "C:\Users\Admin\AppData\Local\Temp\cjrimgid.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4468
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9223 --profile-directory="Default"
      2⤵
      • Uses browser remote debugging
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1468
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.123 --initial-client-data=0x21c,0x220,0x224,0x1f8,0x228,0x7ffb8c5ccc40,0x7ffb8c5ccc4c,0x7ffb8c5ccc58
        3⤵
          PID:3940
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1940,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=1924 /prefetch:2
          3⤵
            PID:4828
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=2192,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=2204 /prefetch:3
            3⤵
              PID:1980
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2272,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=2472 /prefetch:8
              3⤵
                PID:1428
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3220,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=3236 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:4060
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3240,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=3264 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:4704
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --remote-debugging-port=9223 --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4556,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=4604 /prefetch:1
                3⤵
                • Uses browser remote debugging
                PID:2952
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4268,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=3672 /prefetch:8
                3⤵
                  PID:3536
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4792,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=4828 /prefetch:8
                  3⤵
                    PID:1684
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4300,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=3876 /prefetch:8
                    3⤵
                      PID:2724
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4872,i,6199591037781424122,15286446480735053279,262144 --variations-seed-version=20250127-050148.939000 --mojo-platform-channel-handle=4812 /prefetch:8
                      3⤵
                        PID:4524
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --remote-debugging-port=9223 --profile-directory="Default"
                      2⤵
                      • Uses browser remote debugging
                      • Enumerates system info in registry
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
                      • Suspicious use of FindShellTrayWindow
                      PID:360
                      • 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=0x128,0x12c,0x130,0x104,0x134,0x7ffb8c5d46f8,0x7ffb8c5d4708,0x7ffb8c5d4718
                        3⤵
                        • Checks processor information in registry
                        • Enumerates system info in registry
                        • Suspicious behavior: EnumeratesProcesses
                        PID:468
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2100,6513991200936263453,17752324011391267462,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2108 /prefetch:2
                        3⤵
                          PID:2680
                        • 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=2100,6513991200936263453,17752324011391267462,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2172 /prefetch:3
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:1364
                        • 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=2100,6513991200936263453,17752324011391267462,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2880 /prefetch:8
                          3⤵
                            PID:3100
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --remote-debugging-port=9223 --field-trial-handle=2100,6513991200936263453,17752324011391267462,131072 --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=3388 /prefetch:1
                            3⤵
                            • Uses browser remote debugging
                            PID:1756
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --remote-debugging-port=9223 --field-trial-handle=2100,6513991200936263453,17752324011391267462,131072 --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=3404 /prefetch:1
                            3⤵
                            • Uses browser remote debugging
                            PID:4668
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --remote-debugging-port=9223 --field-trial-handle=2100,6513991200936263453,17752324011391267462,131072 --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=5116 /prefetch:1
                            3⤵
                            • Uses browser remote debugging
                            PID:836
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --remote-debugging-port=9223 --field-trial-handle=2100,6513991200936263453,17752324011391267462,131072 --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=5108 /prefetch:1
                            3⤵
                            • Uses browser remote debugging
                            PID:3884
                      • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                        "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                        1⤵
                          PID:3944
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                          1⤵
                            PID:1208

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

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                          Downloads

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                            Filesize

                            2B

                            MD5

                            d751713988987e9331980363e24189ce

                            SHA1

                            97d170e1550eee4afc0af065b78cda302a97674c

                            SHA256

                            4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                            SHA512

                            b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

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

                            Filesize

                            152B

                            MD5

                            7aa0be13c8d914912341bac39e064869

                            SHA1

                            55d20143756d1c85a67d7172682542739d1d1939

                            SHA256

                            31f51a011ab2fdcee551b41cee5371b4c3b5be991d2d83700036c062cc41dd9e

                            SHA512

                            6693457f475f0ddb71129b0c9e0d4939ca47b732133f6eae8f829286b2a27dc90f17767e7ec413eaf8e30ed2c13645716848a29af0c2fb0f695be1114aeb99c2

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

                            Filesize

                            5KB

                            MD5

                            fb24277cc4ee7eae8398c14467124c92

                            SHA1

                            7abe4c964ed1bec7ffa3ebc963699dad76b5d5c3

                            SHA256

                            ea1e3a4da5ce938281005908307f32ce3f2f666d9725dbdac813016b1dd83f75

                            SHA512

                            a0c62929247375b49938707b9dd54ba31805933edf175dd60266465b059447b02f2f500064c626841de65edc34e16cf4a26a01bfa3479293717754a3146a5d5b

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

                            Filesize

                            112KB

                            MD5

                            e03fc0ff83fdfa203efc0eb3d2b8ed35

                            SHA1

                            c705b1aa42d84b3414fdc5058e0fa0a3dc9e1664

                            SHA256

                            08d550d1866b479c6c41ebbda7b453dba198ee8744a52c530ff34458024ee1fe

                            SHA512

                            c0840930d7a9cf16e8fbefefd09c564eabfcfb6e9df1f9b906b830e8218a818c3f9721f9ce1fc2a96b2e6ce725baba0dcd5810a9b55d20b3c9d6f4569b9008a2

                          • memory/4468-0-0x0000000000400000-0x0000000000422000-memory.dmp

                            Filesize

                            136KB

                          • memory/4468-91-0x0000000000400000-0x0000000000422000-memory.dmp

                            Filesize

                            136KB