Analysis

  • max time kernel
    211s
  • max time network
    212s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 20:22

General

  • Target

    https://cdn.discordapp.com/attachments/1221895306933833802/1221914989120458845/Client-built.rar?ex=66145003&is=6601db03&hm=24212dc7c96b732376241577ae870f3f6f7b9f236eae7b76935274d9191d84ad&

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTIyMTkxMzUyNTI5MTg0MzY4NQ.GEtd5_.rb7YDE3upMpw8BvRznWpPabhFHSx5LUwoSbtkA

  • server_id

    1221895306120265778

Signatures

  • Discord RAT

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

  • Executes dropped EXE 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 13 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://cdn.discordapp.com/attachments/1221895306933833802/1221914989120458845/Client-built.rar?ex=66145003&is=6601db03&hm=24212dc7c96b732376241577ae870f3f6f7b9f236eae7b76935274d9191d84ad&
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2552
    • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffb748d46f8,0x7ffb748d4708,0x7ffb748d4718
      2⤵
        PID:2276
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2188 /prefetch:2
        2⤵
          PID:3488
        • 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=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2272 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4760
        • 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=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2756 /prefetch:8
          2⤵
            PID:748
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --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=3320 /prefetch:1
            2⤵
              PID:1412
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3340 /prefetch:1
              2⤵
                PID:3052
              • 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=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5220 /prefetch:8
                2⤵
                  PID:2724
                • 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=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5220 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:3484
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5512 /prefetch:1
                  2⤵
                    PID:3264
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5520 /prefetch:1
                    2⤵
                      PID:1824
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=3508 /prefetch:8
                      2⤵
                        PID:3948
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --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=3460 /prefetch:1
                        2⤵
                          PID:1552
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5984 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:5096
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6044 /prefetch:1
                          2⤵
                            PID:3236
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2180,6244030309805016683,8424711135894562408,131072 --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=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6072 /prefetch:1
                            2⤵
                              PID:2800
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:1944
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:2468
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:5376
                                • C:\Program Files\7-Zip\7zG.exe
                                  "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\Client-built\" -spe -an -ai#7zMap25258:86:7zEvent6799
                                  1⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  • Suspicious use of FindShellTrayWindow
                                  PID:6124
                                • C:\Users\Admin\Downloads\Client-built\Client-built.exe
                                  "C:\Users\Admin\Downloads\Client-built\Client-built.exe"
                                  1⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:5576
                                • C:\Users\Admin\Downloads\Client-built\Client-built.exe
                                  "C:\Users\Admin\Downloads\Client-built\Client-built.exe"
                                  1⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:5448
                                • C:\Windows\system32\rundll32.exe
                                  "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
                                  1⤵
                                    PID:512
                                  • C:\Windows\System32\svchost.exe
                                    C:\Windows\System32\svchost.exe -k UnistackSvcGroup
                                    1⤵
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:3060

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Client-built.exe.log

                                          Filesize

                                          1KB

                                          MD5

                                          22ec25644f93dd1fa2b7c5bda69a3580

                                          SHA1

                                          dd81e765331d67d8a28115cd60f71f3bbbcdd5f1

                                          SHA256

                                          34f7973241f06908553150af1605756221c9dd058ee3c2705d4e502abbc258cb

                                          SHA512

                                          ccfa4f49652a0eb13a64a621b9a604c529fb5fa3d4c3feda056949a50fb4c0e4f1d1a772d4b05001c13118e75beef574a4553453307bd8b2e19ec08cb35f8b65

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

                                          Filesize

                                          152B

                                          MD5

                                          9ffb5f81e8eccd0963c46cbfea1abc20

                                          SHA1

                                          a02a610afd3543de215565bc488a4343bb5c1a59

                                          SHA256

                                          3a654b499247e59e34040f3b192a0069e8f3904e2398cbed90e86d981378e8bc

                                          SHA512

                                          2d21e18ef3f800e6e43b8cf03639d04510433c04215923f5a96432a8aa361fdda282cd444210150d9dbf8f028825d5bc8a451fd53bd3e0c9528eeb80d6e86597

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

                                          Filesize

                                          152B

                                          MD5

                                          e1b45169ebca0dceadb0f45697799d62

                                          SHA1

                                          803604277318898e6f5c6fb92270ca83b5609cd5

                                          SHA256

                                          4c0224fb7cc26ccf74f5be586f18401db57cce935c767a446659b828a7b5ee60

                                          SHA512

                                          357965b8d5cfaf773dbd9b371d7e308d1c86a6c428e542adbfe6bac34a7d2061d0a2f59e84e5b42768930e9b109e9e9f2a87e95cf26b3a69cbff05654ee42b4e

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

                                          Filesize

                                          186B

                                          MD5

                                          094ab275342c45551894b7940ae9ad0d

                                          SHA1

                                          2e7ce26fe2eb9be641ae929d0c9cc0dfa26c018e

                                          SHA256

                                          ef1739b833a1048ee1bd55dcbac5b1397396faca1ad771f4d6c2fe58899495a3

                                          SHA512

                                          19d0c688dc1121569247111e45de732b2ab86c71aecdde34b157cfd1b25c53473ed3ade49a97f8cb2ddc4711be78fa26c9330887094e031e9a71bb5c29080b0d

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

                                          Filesize

                                          6KB

                                          MD5

                                          137adfaf05452734c32f313ed944462d

                                          SHA1

                                          1020c74f2da266f71cb42f2cb07f6b3765e813f1

                                          SHA256

                                          4c4efc37d474b97876f8eb48eed275cc1784e3c8a63eab534031848dc252012c

                                          SHA512

                                          ff8f83344947118a2522d31a272555fae28ff85eea8b1f94fcc4909ba31992349a2382befdd1156947f20f2bba0bc81a87cda4941544a886b31c41a164a67d1d

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

                                          Filesize

                                          6KB

                                          MD5

                                          2243f609a5a89f96a62be5aa0fe4677d

                                          SHA1

                                          e4c9c57fdfdef09e92b0f527adb95ccde7671f4f

                                          SHA256

                                          4027b9db5dcd2993646a8b1a5df071da9e4f1bdf83f69ee88975d84fa31ab617

                                          SHA512

                                          dc8f9312b0b0a98ab2da7c3638f2608882995095c22d47169cb598fc3f1f5e02c40896b2e9d4fc1af041aeab6fb136272c55d3211a72ac93e94e8937481c6876

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

                                          Filesize

                                          16B

                                          MD5

                                          6752a1d65b201c13b62ea44016eb221f

                                          SHA1

                                          58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                          SHA256

                                          0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                          SHA512

                                          9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

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

                                          Filesize

                                          11KB

                                          MD5

                                          f50443fe3d277f9c3bdae6557b2d1636

                                          SHA1

                                          9adbea14884853ed1fe701ee9a6b5dbf7c968f09

                                          SHA256

                                          db3947dd2b2a7ed192c0b04a545e64ba1c80dcab87153707b9254b7da43a0de2

                                          SHA512

                                          fd6ba5848f1e6661a87503ad74c3f59bae15d8a20fb2f8a183c94fefbddf90e3753c84e9b06bd9af27c7198536b868112841d783f051c12c09abb3593c84babd

                                        • C:\Users\Admin\Downloads\Client-built.rar

                                          Filesize

                                          26KB

                                          MD5

                                          1b853a76dbca28e6198953dae89d9062

                                          SHA1

                                          8b69fed569fa7678d700ad1a4a3de1ffee90f016

                                          SHA256

                                          4d132dac82e1a92dce6556db07d25af1536e0c848401fd6a76226eb9a043c502

                                          SHA512

                                          b15cd9532a72ab918cd5f7b11461822c1601a4cb6ea5a1e5bfc1996232b197060cc0ac09d52b2e854d1d6312ba4e35f4eae8956735de8ffcd26d3c0d5b226813

                                        • C:\Users\Admin\Downloads\Client-built\Client-built.exe

                                          Filesize

                                          78KB

                                          MD5

                                          6c0def2fa807c96b64833f6f9372cacd

                                          SHA1

                                          3a02b8bb4426a979d1946fe601700a8afb920e05

                                          SHA256

                                          493cee2ab73ae407d1f4b68ebefc960d5b8a4941de451f3dfb6de820d35c8b7c

                                          SHA512

                                          893826eba777279ae09344a50d532f38047d42419f7dae1badf9a0ef3996feef163d5091bb1b17641929cf859853dd0b5ef0ef9d8f9a1f68a3245c5affe62697

                                        • memory/3060-198-0x0000017599480000-0x0000017599481000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3060-197-0x0000017599370000-0x0000017599371000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3060-196-0x0000017599370000-0x0000017599371000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3060-194-0x0000017599340000-0x0000017599341000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/3060-178-0x0000017591040000-0x0000017591050000-memory.dmp

                                          Filesize

                                          64KB

                                        • memory/3060-162-0x0000017590F40000-0x0000017590F50000-memory.dmp

                                          Filesize

                                          64KB

                                        • memory/5448-160-0x00007FFB61530000-0x00007FFB61FF1000-memory.dmp

                                          Filesize

                                          10.8MB

                                        • memory/5448-158-0x00007FFB61530000-0x00007FFB61FF1000-memory.dmp

                                          Filesize

                                          10.8MB

                                        • memory/5448-159-0x000002389AD30000-0x000002389AD40000-memory.dmp

                                          Filesize

                                          64KB

                                        • memory/5448-161-0x000002389AD30000-0x000002389AD40000-memory.dmp

                                          Filesize

                                          64KB

                                        • memory/5576-155-0x00007FFB61530000-0x00007FFB61FF1000-memory.dmp

                                          Filesize

                                          10.8MB

                                        • memory/5576-153-0x0000027B8FB00000-0x0000027B8FB10000-memory.dmp

                                          Filesize

                                          64KB

                                        • memory/5576-152-0x00007FFB61530000-0x00007FFB61FF1000-memory.dmp

                                          Filesize

                                          10.8MB

                                        • memory/5576-151-0x0000027BAA560000-0x0000027BAAA88000-memory.dmp

                                          Filesize

                                          5.2MB

                                        • memory/5576-150-0x0000027B8FB00000-0x0000027B8FB10000-memory.dmp

                                          Filesize

                                          64KB

                                        • memory/5576-149-0x00007FFB61530000-0x00007FFB61FF1000-memory.dmp

                                          Filesize

                                          10.8MB

                                        • memory/5576-148-0x0000027BA9D60000-0x0000027BA9F22000-memory.dmp

                                          Filesize

                                          1.8MB

                                        • memory/5576-147-0x0000027B8F700000-0x0000027B8F718000-memory.dmp

                                          Filesize

                                          96KB