Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11-12-2024 23:08

General

  • Target

    Client-built.exe

  • Size

    78KB

  • MD5

    3eb92b8497ddfee8e43939e890bf1976

  • SHA1

    18aa6df7c8cc8f773f0bc9bec8d631c44fee4c5d

  • SHA256

    5ea6afa4f123b4ea918aacafa133309a4850a3cf7cf7ee503e7712aaae893992

  • SHA512

    cd40e0103e0f9f9669cd07139b60df631506931bd93c4d1f4ab3e2ab5ad2c488c56b465bec6d293dceb9b107b478a7545ad84a1b6db75b44441911ef4e3fb2c2

  • SSDEEP

    1536:52WjO8XeEXFh5P7v88wbjNrfxCXhRoKV6+V+2PIC:5Zv5PDwbjNrmAE+yIC

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTMxNjUzMzkwMTg5MTYwNDU1MA.GI7iob.pcLDsMYuxjZxVDoarIHuAYwRBVhdbFfMxNY8K0

  • server_id

    1316541708548313231

Signatures

  • Discord RAT

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

  • Discordrat family
  • Disables Task Manager via registry modification
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 8 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 4 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4484
    • C:\Windows\SYSTEM32\SCHTASKS.exe
      "SCHTASKS.exe" /create /tn "$77Client-built.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Client-built.exe'" /sc onlogon /rl HIGHEST
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3480
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2400
    • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffdc3933cb8,0x7ffdc3933cc8,0x7ffdc3933cd8
      2⤵
        PID:1564
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1868,6380056845094344876,800472057716757509,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1876 /prefetch:2
        2⤵
          PID:4652
        • 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=1868,6380056845094344876,800472057716757509,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2308 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2592
        • 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=1868,6380056845094344876,800472057716757509,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2620 /prefetch:8
          2⤵
            PID:2984
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1868,6380056845094344876,800472057716757509,131072 --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=3212 /prefetch:1
            2⤵
              PID:2888
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1868,6380056845094344876,800472057716757509,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3224 /prefetch:1
              2⤵
                PID:3556
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1868,6380056845094344876,800472057716757509,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4820 /prefetch:1
                2⤵
                  PID:1588
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1868,6380056845094344876,800472057716757509,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4524 /prefetch:1
                  2⤵
                    PID:3076
                  • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1868,6380056845094344876,800472057716757509,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4664 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4616
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1868,6380056845094344876,800472057716757509,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3684 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:392
                • C:\Windows\System32\CompPkgSrv.exe
                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                  1⤵
                    PID:4472
                  • C:\Windows\System32\CompPkgSrv.exe
                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                    1⤵
                      PID:4160
                    • C:\Windows\system32\BackgroundTransferHost.exe
                      "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
                      1⤵
                      • Modifies registry class
                      PID:3048

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

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

                      Filesize

                      152B

                      MD5

                      1fc959921446fa3ab5813f75ca4d0235

                      SHA1

                      0aeef3ba7ba2aa1f725fca09432d384b06995e2a

                      SHA256

                      1b1e89d3b2f3da84cc8494d07cf0babc472c426ccb1c4ae13398243360c9d02c

                      SHA512

                      899d1e1b0feece25ac97527daddcaaeb069cb428532477849eba43a627502c590261f2c26fef31e4e20efd3d7eb0815336a784c4d2888e05afcf5477af872b06

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

                      Filesize

                      152B

                      MD5

                      e9a2c784e6d797d91d4b8612e14d51bd

                      SHA1

                      25e2b07c396ee82e4404af09424f747fc05f04c2

                      SHA256

                      18ddbb93c981d8006071f9d26924ce3357cad212cbb65f48812d4a474c197ce6

                      SHA512

                      fc35688ae3cd448ed6b2069d39ce1219612c54f5bb0dd7b707c9e6f39450fe9fb1338cf5bd0b82a45207fac2fbab1e0eae77e5c9e6488371390eab45f76a5df1

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

                      Filesize

                      5KB

                      MD5

                      74446c3a02a3043a4e2bf4233fc735ec

                      SHA1

                      fddba3a43fd36aa8339510a2720fd6431cdb6520

                      SHA256

                      a26910d6f843f2daeab146a5ab1b39f1788b513d40c8c9dab2eace13967ed001

                      SHA512

                      69f3b2a5091ac2ca3d01c4edb186626954711089da80a3d6f6a1676339f93e998cd879585dc77e46cbdd56f52618d1d0449175eb10b061d33c2cf731e050cad7

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

                      Filesize

                      5KB

                      MD5

                      d71437970f3ea0680cf66ab52458ac7e

                      SHA1

                      6694939665852bdedaca0d29ee84aa35a0187011

                      SHA256

                      bc78855d163b97f3b5925b8ff3d6da67f09ee979562033640cfad6a11146560c

                      SHA512

                      bee80b5c82d66ade1330fad70b1db211775a30c332c70e15a688c0d4426fc83215bd59f52281046b9fe1585c6711b43032f5b6667cbcb7e7b7ba4d1177268857

                    • 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

                      10KB

                      MD5

                      66e25debbeaffcbf38c7c8b1cd2605a2

                      SHA1

                      3058da3c58bed9f25569af2f757e23c158fac98b

                      SHA256

                      7c6e3c0d0a83538daa697011300b447ad385f3d04d302d4298f8e53a6cf4f791

                      SHA512

                      5585243cef194bf5a24b7a02b2e945996c233e03e13d20c8338a452ef6ded2879d862403793f456963ca282ac6ec8fe78dbc34ee97035195c6f5dc68caa37052

                    • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\127990e6-bb14-4f86-91c2-a45652386fc7.down_data

                      Filesize

                      555KB

                      MD5

                      5683c0028832cae4ef93ca39c8ac5029

                      SHA1

                      248755e4e1db552e0b6f8651b04ca6d1b31a86fb

                      SHA256

                      855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e

                      SHA512

                      aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3

                    • memory/4484-3-0x00007FFDC8C30000-0x00007FFDC96F2000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/4484-6-0x00007FFDC8C30000-0x00007FFDC96F2000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/4484-5-0x00007FFDC8C33000-0x00007FFDC8C35000-memory.dmp

                      Filesize

                      8KB

                    • memory/4484-4-0x00000197B9630000-0x00000197B9B58000-memory.dmp

                      Filesize

                      5.2MB

                    • memory/4484-0-0x00007FFDC8C33000-0x00007FFDC8C35000-memory.dmp

                      Filesize

                      8KB

                    • memory/4484-2-0x00000197B83B0000-0x00000197B8572000-memory.dmp

                      Filesize

                      1.8MB

                    • memory/4484-1-0x000001979DC30000-0x000001979DC48000-memory.dmp

                      Filesize

                      96KB