Analysis

  • max time kernel
    269s
  • max time network
    271s
  • 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 19:43

General

  • Target

    https://cdn.discordapp.com/attachments/1221895306933833802/1221907200394530947/Client-built.rar?ex=661448c2&is=6601d3c2&hm=742e59191c8cd438d9f6924dfa9ee35cfa6c17abf842ad49793d52839320cfb4&

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTIyMTkwNjUwNzI5ODM3NzkzMA.GiWyBe.bMc6EfTRKlt2YGmTuWnfGBRENjujQeWux4PFow

  • server_id

    1221895306120265778

Signatures

  • Discord RAT

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

  • Executes dropped EXE 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 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/1221895306933833802/1221907200394530947/Client-built.rar?ex=661448c2&is=6601d3c2&hm=742e59191c8cd438d9f6924dfa9ee35cfa6c17abf842ad49793d52839320cfb4&
    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:3984
    • 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,0x100,0x104,0xd8,0x108,0x7ffa9b3b46f8,0x7ffa9b3b4708,0x7ffa9b3b4718
      2⤵
        PID:2044
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2140 /prefetch:2
        2⤵
          PID:1508
        • 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=2116,4251156131658633697,17164283106898303899,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2316 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1120
        • 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=2116,4251156131658633697,17164283106898303899,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2704 /prefetch:8
          2⤵
            PID:2316
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --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=3276 /prefetch:1
            2⤵
              PID:2572
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --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=3296 /prefetch:1
              2⤵
                PID:4532
              • 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=2116,4251156131658633697,17164283106898303899,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5328 /prefetch:8
                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=2116,4251156131658633697,17164283106898303899,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5328 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:3572
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --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=4964 /prefetch:1
                  2⤵
                    PID:4404
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --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=4908 /prefetch:1
                    2⤵
                      PID:4016
                    • 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=2116,4251156131658633697,17164283106898303899,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=3372 /prefetch:8
                      2⤵
                        PID:684
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --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=3352 /prefetch:1
                        2⤵
                          PID:2692
                        • 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=2116,4251156131658633697,17164283106898303899,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5608 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:4640
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --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=5856 /prefetch:1
                          2⤵
                            PID:4640
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --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=5900 /prefetch:1
                            2⤵
                              PID:3292
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,4251156131658633697,17164283106898303899,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=4632 /prefetch:2
                              2⤵
                                PID:2164
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:3996
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:540
                                • C:\Windows\System32\rundll32.exe
                                  C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                  1⤵
                                    PID:5392
                                  • 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#7zMap21022:86:7zEvent25284
                                    1⤵
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of FindShellTrayWindow
                                    PID:5704
                                  • 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:5796
                                  • C:\Windows\system32\taskmgr.exe
                                    "C:\Windows\system32\taskmgr.exe" /4
                                    1⤵
                                    • Checks SCSI registry key(s)
                                    • Suspicious behavior: EnumeratesProcesses
                                    • Suspicious behavior: GetForegroundWindowSpam
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of FindShellTrayWindow
                                    • Suspicious use of SendNotifyMessage
                                    PID:5972
                                  • 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:3360

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

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

                                    Filesize

                                    152B

                                    MD5

                                    47b2c6613360b818825d076d14c051f7

                                    SHA1

                                    7df7304568313a06540f490bf3305cb89bc03e5c

                                    SHA256

                                    47a22bea2e7d0154c59bf5d8790ec68274eb05e9fa6cf0eab0d648121f1a02ac

                                    SHA512

                                    08d2366fc1ce87dbe96b9bf997e4c59c9206fcfea47c1f17b01e79aeb0580f25cac5c7349bb453a50775b2743053446653f4129f835f81f4a8547ca392557aac

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

                                    Filesize

                                    152B

                                    MD5

                                    e0811105475d528ab174dfdb69f935f3

                                    SHA1

                                    dd9689f0f70a07b4e6fb29607e42d2d5faf1f516

                                    SHA256

                                    c91388c87878a9e2c530c6096dbdd993b0a26fefe8ad797e0133547225032d6c

                                    SHA512

                                    8374a721ea3ff3a1ea70d8a074e5c193dbba27ba7e301f19cea89d648b2378c376e48310c33fe81078cd40b1863daec935e8ac22e8e3878dc3a5bb529d028852

                                  • 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

                                    3e730433dacaa0bcad4588e747eee1f9

                                    SHA1

                                    6f1b73d7b762c3a7703e4b827672f0f7abbac282

                                    SHA256

                                    776af7e1b54eaf2afafb78bb2d643cdb26d41e4250c5fd7e87e5d6ccfa271ac8

                                    SHA512

                                    3a13bb56cbccc1e54b6b32ffa5dbc03b319019ec5e90f3b35f42949d430b08ef45d13a65fcc15e85788bc78d3f3140405ce3f83184248063dbf52164cc32916d

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

                                    Filesize

                                    6KB

                                    MD5

                                    9d5ecabf3dbbdc3b126534c2381f8355

                                    SHA1

                                    0411a211ce4692fafe58a06099158681a760b2ab

                                    SHA256

                                    aa25a7ef9218857e667a7731b051e21ba509cce567b50016ce0054cbd8e974f0

                                    SHA512

                                    5473ad21d6bb240299ac6c238d41f7851e43ac3aa3c23182a94fcf4df7c4da80193d492b0075458647710e4c643448878716663c780ead7b16c62abf8cb8c97a

                                  • 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

                                    c7a446daf8cb3b12bbe09c78040e7c2f

                                    SHA1

                                    bcc59a8e5a21c1242e6c059a76838dd6699fcc1f

                                    SHA256

                                    6954486d6573bb32dbc2b6440e0d9f2460b3ebb54805fc6b2543ede85624cc29

                                    SHA512

                                    7bd890d4f07fb8a430f0a8e9c2a5ecbfd9a8671493892c872a7ff38254caff8bf264a4ab3afff6e955cec56ab7d877096802c642a9385f2059c14ca902ddb1b0

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

                                    Filesize

                                    26KB

                                    MD5

                                    3d78b5ab445d0602ff0c4b47582d91c5

                                    SHA1

                                    243402f40286e3146271e7374715f645c0ee5997

                                    SHA256

                                    7a02bf428d0d07382a07d436fb38ee07411c8e18336e9e5a1c256d50f47360a7

                                    SHA512

                                    27c29e38ffad5ce94ea4a704637db3534c0aee1f5db8f43bba090d270c92b8e34dd11a2396d65e3d58b11820bebed8d590e876f740ea841f04c81392973fce57

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

                                    Filesize

                                    78KB

                                    MD5

                                    ba830918448347eda9570448c7551140

                                    SHA1

                                    585fb1eb9f0969f11f463888c383dc962f50cbbd

                                    SHA256

                                    71ef2f19d4ebb21b8d249b180c8fd7df66f21eb5752c143de3927b42a31a9a3a

                                    SHA512

                                    dfaf14f9ee95344d85f4785b08b9b1d77a5564c878c5ca990f14ffc8cc2c3974a7ddc77be6916e564d4cee6cc4f3a7d868b06f3ee39427b1b97108d240b56d9a

                                  • memory/3360-135-0x00000242C26D0000-0x00000242C26E0000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/3360-134-0x00007FFA87790000-0x00007FFA88251000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/3360-133-0x00000242C26D0000-0x00000242C26E0000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/3360-132-0x00007FFA87790000-0x00007FFA88251000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/5796-66-0x00007FFA87720000-0x00007FFA881E1000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/5796-67-0x00000120D0370000-0x00000120D0380000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/5796-68-0x00000120E9F40000-0x00000120EA468000-memory.dmp

                                    Filesize

                                    5.2MB

                                  • memory/5796-65-0x00000120E8AC0000-0x00000120E8C82000-memory.dmp

                                    Filesize

                                    1.8MB

                                  • memory/5796-93-0x00007FFA87720000-0x00007FFA881E1000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/5796-64-0x00000120CE400000-0x00000120CE418000-memory.dmp

                                    Filesize

                                    96KB

                                  • memory/5796-107-0x00007FFA87720000-0x00007FFA881E1000-memory.dmp

                                    Filesize

                                    10.8MB

                                  • memory/5972-80-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-91-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-92-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-90-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-89-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-88-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-87-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-86-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-81-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/5972-82-0x00000231D21B0000-0x00000231D21B1000-memory.dmp

                                    Filesize

                                    4KB