Analysis

  • max time kernel
    84s
  • max time network
    86s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 01:32

Errors

Reason
Machine shutdown

General

  • Target
    Google Chrome.exe
  • Size 492KB
  • Sample240526-byb98aaf93
  • SHA256 9d0e13b30050899624473e710d44cb372a881a38d2802cc6c0ea2e2f54580689
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • discordrat

Attributes
  • discord_token

    MTI0NDA5NTY1ODUwNDM1OTk3Ng.GTDu8V.pnAIDXNTNWIQchltJK15s3stoHuo5RxHsi9AYg

  • server_id

    1244095541626015796

Signatures

  • Discord RAT

    A RAT written in C# using Discord as a C2.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 17 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Google Chrome.exe
    "C:\Users\Admin\AppData\Local\Temp\Google Chrome.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      2⤵
      • 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 SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2236
      • 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:7 --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=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ff85becab58,0x7ff85becab68,0x7ff85becab78
        3⤵
          PID:1984
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1692 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:2
          3⤵
            PID:2208
          • 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 --mojo-platform-channel-handle=2200 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
            3⤵
              PID:1244
            • 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 --mojo-platform-channel-handle=2264 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
              3⤵
                PID:2668
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3052 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:1
                3⤵
                  PID:2420
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3080 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:1
                  3⤵
                    PID:2136
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4332 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:1
                    3⤵
                      PID:3960
                    • 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 --mojo-platform-channel-handle=4492 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                      3⤵
                        PID:1768
                      • 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 --mojo-platform-channel-handle=4264 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                        3⤵
                          PID:3132
                        • 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 --mojo-platform-channel-handle=4536 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                          3⤵
                            PID:1420
                          • 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 --mojo-platform-channel-handle=4520 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                            3⤵
                              PID:4084
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4852 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                              3⤵
                                PID:4264
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4564 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                                3⤵
                                  PID:4280
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4920 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                                  3⤵
                                    PID:1544
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4976 --field-trial-handle=1952,i,15207683745504727348,17026892573333298422,131072 /prefetch:8
                                    3⤵
                                      PID:4808
                                  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\backdoor.exe
                                    "C:\Users\Admin\AppData\Local\Temp\RarSFX0\backdoor.exe"
                                    2⤵
                                    • Checks computer location settings
                                    • Executes dropped EXE
                                    PID:3196
                                    • C:\Windows\System32\shutdown.exe
                                      "C:\Windows\System32\shutdown.exe" /s /t 0
                                      3⤵
                                        PID:3188
                                  • C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
                                    "C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
                                    1⤵
                                      PID:2808
                                    • C:\Windows\System32\rundll32.exe
                                      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                      1⤵
                                        PID:556
                                      • C:\Windows\system32\LogonUI.exe
                                        "LogonUI.exe" /flags:0x4 /state0:0xa3902055 /state1:0x41c64e6d
                                        1⤵
                                        • Modifies data under HKEY_USERS
                                        • Suspicious use of SetWindowsHookEx
                                        PID:3468

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            data_1

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
                                            • Size 264KB
                                            • SHA256 b26a701052ed6f2166b5e8cc9ec6f6011393187100b084c1368bbb56aef8d217
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Network Persistent State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                            • Size 1KB
                                            • SHA256 32353908ccf59a37066e58a8e49138bb40c958f743bc50d14d65710b91ceb5d3
                                            • MD5 SHA1 SHA512

                                            SCT Auditing Pending Reports

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                            • Size 2B
                                            • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                            • MD5 SHA1 SHA512

                                            TransportSecurity

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                            • Size 356B
                                            • SHA256 ccc709f92ae1922fe99a59d81f9d9b979ce6c3a8ad7e6be53fa42c6ed5ce8f1a
                                            • MD5 SHA1 SHA512

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 6KB
                                            • SHA256 5d4d267cf4de7f4ac396f5ad42efc69773de0042c3a87f1147fdf33f70162d02
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Secure Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                            • Size 16KB
                                            • SHA256 8167fff6b2e54772d8a743ab28c7fc49e520d699b2823f9530df8c788b5470a1
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 262KB
                                            • SHA256 cbb437dce9409b713a09513aeb655c92d39c1451ea469ff4d110586eb78a6b5c
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 257KB
                                            • SHA256 981a4c94a452c830ba98f989554b6564fda6689a867b2fc61ec23d0188adb9b3
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 262KB
                                            • SHA256 ae0ca0a7deefd6d9903e9105e32adb3390cf607ab11b8775a7134b2a1d63ae5b
                                            • MD5 SHA1 SHA512 SSDEEP

                                            backdoor.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\backdoor.exe
                                            • Size 78KB
                                            • SHA256 2b10f66d9a5a6e56e89b939b3606ebb628035a96ea64fc45f792ecc59b30d286
                                            • MD5 SHA1 SHA512 SSDEEP

                                            memory/3196-173-0x00000293AACE0000-0x00000293AACF8000-memory.dmp

                                            memory/3196-174-0x00000293C53D0000-0x00000293C5592000-memory.dmp

                                            memory/3196-175-0x00000293C5BD0000-0x00000293C60F8000-memory.dmp