Resubmissions

24/03/2024, 19:50

240324-ykgdcaff8910

24/03/2024, 19:45

240324-ygg6gaff6210

Analysis

  • max time kernel
    92s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/03/2024, 19:50

General

  • Target
    Client-built.exe
  • Size 78KB
  • Sample240324-ykgdcaff89
  • SHA256 a938ff9ba13e88cd2989b4e7c4ec27805242a5da86d23d6ff7fbe0a1a868ba4f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • discordrat

Attributes
  • discord_token

    MTIyMTU0MzQwNjU4MTMyMTc2OA.GnG4Nm.0S3-zLC_CuQZnYYEbaguj4NVMBsyRSCgReVpu8

  • server_id

    1221543160388259971

Signatures

  • Discord RAT

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

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 62 IoCs
  • Suspicious use of SendNotifyMessage 52 IoCs
  • Suspicious use of SetWindowsHookEx 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2564
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • 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:2248
    • 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=106.0.5249.119 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffb24ff9758,0x7ffb24ff9768,0x7ffb24ff9778
      2⤵
        PID:3816
      • 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=1772 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:2
        2⤵
          PID:4316
        • 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=2164 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
          2⤵
            PID:3824
          • 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=utility --mojo-platform-channel-handle=2256 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
            2⤵
              PID:2836
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --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=3124 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:1
              2⤵
                PID:884
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3136 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:1
                2⤵
                  PID:3416
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4720 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:1
                  2⤵
                    PID:5316
                  • 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=5100 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                    2⤵
                      PID:5496
                    • 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=5200 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                      2⤵
                        PID:5516
                      • 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=5216 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                        2⤵
                          PID:5672
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=5424 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:1
                          2⤵
                            PID:6008
                          • 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=3220 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                            2⤵
                              PID:5500
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=3112 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:1
                              2⤵
                                PID:5916
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5884 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                                2⤵
                                  PID:5536
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5840 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                                  2⤵
                                    PID:3236
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4712 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                                    2⤵
                                      PID:4856
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5788 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                                      2⤵
                                        PID:1908
                                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=3320 --field-trial-handle=1740,i,2094961941544854416,6859390562316372167,131072 /prefetch:8
                                        2⤵
                                          PID:5088
                                        • C:\Users\Admin\Downloads\MEMZ.exe
                                          "C:\Users\Admin\Downloads\MEMZ.exe"
                                          2⤵
                                          • Checks computer location settings
                                          • Executes dropped EXE
                                          PID:6016
                                          • C:\Users\Admin\Downloads\MEMZ.exe
                                            "C:\Users\Admin\Downloads\MEMZ.exe" /watchdog
                                            3⤵
                                            • Executes dropped EXE
                                            • Suspicious behavior: EnumeratesProcesses
                                            • Suspicious use of SetWindowsHookEx
                                            PID:5988
                                          • C:\Users\Admin\Downloads\MEMZ.exe
                                            "C:\Users\Admin\Downloads\MEMZ.exe" /watchdog
                                            3⤵
                                            • Executes dropped EXE
                                            • Suspicious behavior: EnumeratesProcesses
                                            PID:5956
                                          • C:\Users\Admin\Downloads\MEMZ.exe
                                            "C:\Users\Admin\Downloads\MEMZ.exe" /watchdog
                                            3⤵
                                            • Executes dropped EXE
                                            • Suspicious behavior: EnumeratesProcesses
                                            • Suspicious use of SetWindowsHookEx
                                            PID:2396
                                          • C:\Users\Admin\Downloads\MEMZ.exe
                                            "C:\Users\Admin\Downloads\MEMZ.exe" /watchdog
                                            3⤵
                                            • Executes dropped EXE
                                            • Suspicious behavior: EnumeratesProcesses
                                            • Suspicious use of SetWindowsHookEx
                                            PID:5276
                                          • C:\Users\Admin\Downloads\MEMZ.exe
                                            "C:\Users\Admin\Downloads\MEMZ.exe" /watchdog
                                            3⤵
                                            • Executes dropped EXE
                                            • Suspicious behavior: EnumeratesProcesses
                                            • Suspicious use of SetWindowsHookEx
                                            PID:3024
                                          • C:\Users\Admin\Downloads\MEMZ.exe
                                            "C:\Users\Admin\Downloads\MEMZ.exe" /main
                                            3⤵
                                            • Checks computer location settings
                                            • Executes dropped EXE
                                            • Writes to the Master Boot Record (MBR)
                                            PID:2136
                                            • C:\Windows\SysWOW64\notepad.exe
                                              "C:\Windows\System32\notepad.exe" \note.txt
                                              4⤵
                                                PID:3412
                                        • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                                          "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                                          1⤵
                                            PID:3924
                                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4128 --field-trial-handle=2264,i,13734085038406049477,12426093271221802693,262144 --variations-seed-version /prefetch:8
                                            1⤵
                                              PID:5204
                                            • C:\Windows\system32\taskmgr.exe
                                              "C:\Windows\system32\taskmgr.exe" /7
                                              1⤵
                                              • Checks SCSI registry key(s)
                                              • Suspicious behavior: GetForegroundWindowSpam
                                              • Suspicious use of FindShellTrayWindow
                                              • Suspicious use of SendNotifyMessage
                                              PID:5492

                                            Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

                                                  Loading Replay Monitor...

                                                  Downloads

                                                  the-real-index

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index
                                                  • Size 2KB
                                                  • SHA256 38e7704da4c83a611bdf28c5f874723bf2d9d4f86993fa5ed35fac0f1ca1ec26
                                                  • MD5 SHA1 SHA512

                                                  the-real-index

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index
                                                  • Size 72B
                                                  • SHA256 90c80b7757b660f0cc0d5020c7321d53ea5ef4e685f4854c0c90181bdc500a37
                                                  • MD5 SHA1 SHA512

                                                  Network Persistent State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                                  • Size 2KB
                                                  • SHA256 6068a3c56e354d304337f7245452071c08615d5ef7681a25b4bea807cb1fe365
                                                  • MD5 SHA1 SHA512

                                                  TransportSecurity

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                                  • Size 863B
                                                  • SHA256 87d66982fb2807f93a281a97e93cb71708d37e297df13d168f269b38b2ddcd30
                                                  • MD5 SHA1 SHA512

                                                  TransportSecurity

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                                  • Size 367B
                                                  • SHA256 cde50c49502154c5eea000a4b5a8a81eb300aa5f59a18f9cc78f0a99ad6b8ae4
                                                  • MD5 SHA1 SHA512

                                                  TransportSecurity

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                                  • Size 1KB
                                                  • SHA256 9467fae3db673d781dda62e34238fee242e1ca23c5c07aaac8da62ceac6c92bc
                                                  • MD5 SHA1 SHA512

                                                  TransportSecurity

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                                  • Size 532B
                                                  • SHA256 01fd88394b2f01af8628f38691b54968dc62582f5f31143c0d1e80d637f5e617
                                                  • MD5 SHA1 SHA512

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                  • Size 6KB
                                                  • SHA256 bb4a38bd361690f9924eee343112b522f10623d5c08b2d15ef072a068ec66607
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                  • Size 6KB
                                                  • SHA256 e57f3fb214c9f06c63b3a534e32b42e676b3e570f29d2d92d09303f702c7ce53
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                  • Size 7KB
                                                  • SHA256 7736fe9ada8970df3024b5404c98ac44f44b6cac6b25cc9c16d7f3f375314961
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                  • Size 6KB
                                                  • SHA256 acae8957e764be7d54c2db6e13c5edb2448f901f142b7ed21705f9d8b0e6474f
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Secure Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                                  • Size 15KB
                                                  • SHA256 74a2d3cf1af2b28e0dc4005e843d9d04da8055855e79641ecf355cf9c14f7ef3
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Local State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                  • Size 258KB
                                                  • SHA256 7fa0a74a73d2b35ed88fe3ae9add589dd86786f0f9c2fc3c1e868429303c7937
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Module Info Cache

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache
                                                  • Size 114KB
                                                  • SHA256 7364a3c92dd6c6e90549a7a053edcf6dd78abc28a224e756aeac40981b33d0dc
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Module Info Cache

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache
                                                  • Size 101KB
                                                  • SHA256 cd474ddf4b30813dc3804c2a606f938fe75438d39da8724f9e2a504f20d46279
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  Module Info Cache~RFe5860d8.TMP

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache~RFe5860d8.TMP
                                                  • Size 96KB
                                                  • SHA256 514ffbda9a71a3536f620512b072dd546044c793b678b2a477da5e9b70db6414
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  persisted_first_party_sets.json

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json
                                                  • Size 2B
                                                  • SHA256 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
                                                  • MD5 SHA1 SHA512

                                                  MEMZ.exe

                                                  • Path C:\Users\Admin\Downloads\MEMZ.exe
                                                  • Size 16KB
                                                  • SHA256 3872c12d31fc9825e8661ac01ecee2572460677afbc7093f920a8436a42e28ff
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  note.txt

                                                  • Path C:\note.txt
                                                  • Size 218B
                                                  • SHA256 8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270
                                                  • MD5 SHA1 SHA512

                                                  memory/2564-3-0x000001B245DB0000-0x000001B245DC0000-memory.dmp

                                                  memory/2564-4-0x000001B246830000-0x000001B246D58000-memory.dmp

                                                  memory/2564-24-0x000001B245DC0000-0x000001B245EC2000-memory.dmp

                                                  memory/2564-0-0x000001B22B860000-0x000001B22B878000-memory.dmp

                                                  memory/2564-62-0x000001B245DB0000-0x000001B245DC0000-memory.dmp

                                                  memory/2564-61-0x00007FFB30B10000-0x00007FFB315D1000-memory.dmp

                                                  memory/2564-2-0x00007FFB30B10000-0x00007FFB315D1000-memory.dmp

                                                  memory/2564-1-0x000001B245EF0000-0x000001B2460B2000-memory.dmp

                                                  memory/5492-336-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-334-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-340-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-341-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-342-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-344-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-345-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-343-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-346-0x000001FD857D0000-0x000001FD857D1000-memory.dmp

                                                  memory/5492-335-0x000001FD857D0000-0x000001FD857D1000-memory.dmp