Analysis

  • max time kernel
    120s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/04/2024, 08:29

General

  • Target
    DiscordSetup.exe
  • Size 91.7MB
  • Sample240404-kd18aaad3w
  • SHA256 5c87df642a1e50ca1c32b3bacec7f50b5d1341ad25b6bf028d4b529ceec2e1cb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 7 IoCs

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

  • Modifies registry class 11 IoCs
  • Modifies registry key 1 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DiscordSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\DiscordSetup.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\SquirrelTemp\Update.exe
      "C:\Users\Admin\AppData\Local\SquirrelTemp\Update.exe" --install .
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2808
      • C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe
        "C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe" --squirrel-install 1.0.9036
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2548
        • C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe
          C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Roaming\discord /prefetch:7 --no-rate-limit --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Roaming\discord\Crashpad --url=https://f.a.k/e --annotation=_productName=discord --annotation=_version=1.0.9036 --annotation=plat=Win32 --annotation=prod=Electron --annotation=ver=22.3.26 --initial-client-data=0x54c,0x550,0x554,0x548,0x558,0x8295d78,0x8295d88,0x8295d94
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5008
        • C:\Users\Admin\AppData\Local\Discord\Update.exe
          C:\Users\Admin\AppData\Local\Discord\Update.exe --createShortcut Discord.exe --setupIcon C:\Users\Admin\AppData\Local\Discord\app.ico
          4⤵
          • Executes dropped EXE
          PID:1252
        • C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe
          "C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\discord" --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1768 --field-trial-handle=1932,i,9697747500170291915,16327424227216231857,131072 --disable-features=HardwareMediaKeyHandling,MediaSessionService,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1680
        • C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe
          "C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\discord" --standard-schemes --secure-schemes=sentry-ipc --bypasscsp-schemes=sentry-ipc --cors-schemes=sentry-ipc --fetch-schemes=sentry-ipc --service-worker-schemes --streaming-schemes --mojo-platform-channel-handle=2064 --field-trial-handle=1932,i,9697747500170291915,16327424227216231857,131072 --disable-features=HardwareMediaKeyHandling,MediaSessionService,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:8
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:668
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v Discord /d "\"C:\Users\Admin\AppData\Local\Discord\Update.exe\" --processStart Discord.exe" /f
          4⤵
          • Adds Run key to start application
          • Modifies registry key
          PID:3084
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe add HKCU\Software\Classes\Discord /ve /d "URL:Discord Protocol" /f
          4⤵
          • Modifies registry class
          • Modifies registry key
          PID:3484
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe add HKCU\Software\Classes\Discord /v "URL Protocol" /f
          4⤵
          • Modifies registry class
          • Modifies registry key
          PID:2312
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe add HKCU\Software\Classes\Discord\DefaultIcon /ve /d "\"C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe\",-1" /f
          4⤵
          • Modifies registry class
          • Modifies registry key
          PID:1892
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe add HKCU\Software\Classes\Discord\shell\open\command /ve /d "\"C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe\" --url -- \"%1\"" /f
          4⤵
          • Modifies registry class
          • Modifies registry key
          PID:4452

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Discord.exe

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\Discord.exe
        • Size 130.2MB
        • SHA256 ac258f1ed44807eb0ed0c636919ae8f59466598d5476c7e09963f11b3a32c23c
        • MD5 SHA1 SHA512 SSDEEP

        app.ico

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\app.ico
        • Size 278KB
        • SHA256 dfcea1bea8a924252d507d0316d8cf38efc61cf1314e47dca3eb723f47d5fe43
        • MD5 SHA1 SHA512 SSDEEP

        chrome_100_percent.pak

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\chrome_100_percent.pak
        • Size 126KB
        • SHA256 9f79f46ca911543ead096a5ee28a34bf1fbe56ec9ba956032a6a2892b254857e
        • MD5 SHA1 SHA512 SSDEEP

        chrome_200_percent.pak

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\chrome_200_percent.pak
        • Size 175KB
        • SHA256 1408387e87cb5308530def6ce57bdc4e0abbbaa9e70f687fd6c3a02a56a0536c
        • MD5 SHA1 SHA512 SSDEEP

        d3dcompiler_47.dll

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\d3dcompiler_47.dll
        • Size 3.9MB
        • SHA256 2438b520ac961e38c5852779103734be373ee2b6d1e5a7a5d49248b52acc7c4d
        • MD5 SHA1 SHA512 SSDEEP

        ffmpeg.dll

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\ffmpeg.dll
        • Size 3.1MB
        • SHA256 f882717125ec8889172c64bebe56430b60c1b706b50692ff1edbcc899c65378a
        • MD5 SHA1 SHA512 SSDEEP

        icudtl.dat

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\icudtl.dat
        • Size 10.0MB
        • SHA256 97b978a19edd4746e9a44d9a44bb4bc519e127a203c247837ec0922f573449e3
        • MD5 SHA1 SHA512 SSDEEP

        libEGL.dll

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\libEGL.dll
        • Size 394KB
        • SHA256 f7124b3812a67d0d3628b849deb5c913c339d94863eb178183563adc161d5f59
        • MD5 SHA1 SHA512 SSDEEP

        libglesv2.dll

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\libglesv2.dll
        • Size 6.4MB
        • SHA256 14367059a17a440621a747f62b0008e199ba1bcd4de0dde8636a6c0629b8aad3
        • MD5 SHA1 SHA512 SSDEEP

        en-US.pak

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\locales\en-US.pak
        • Size 313KB
        • SHA256 bb165eaa51456b52fcbdf7639ee727280e335a1f6b4cfb91afc45222895b564f
        • MD5 SHA1 SHA512 SSDEEP

        resources.pak

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\resources.pak
        • Size 5.1MB
        • SHA256 c8895857a61455b2b2beca23f6d400d29fe1685666bef79f11385a3485d24628
        • MD5 SHA1 SHA512 SSDEEP

        app.asar

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\resources\app.asar
        • Size 6.3MB
        • SHA256 cba83099ca964e43d41d4dc027670ac6298ce3d7fee2b8db8850e5714599853c
        • MD5 SHA1 SHA512 SSDEEP

        build_info.json

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\resources\build_info.json
        • Size 83B
        • SHA256 f09b3331ab97c2d4eb403e559d48f1f5df6d19f6d3e674d7b90e5408a916eb7c
        • MD5 SHA1 SHA512

        v8_context_snapshot.bin

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\v8_context_snapshot.bin
        • Size 585KB
        • SHA256 869f5e88fb5e04840f035fc1c3f688e94499c8514bd053c9979413ebb8de4611
        • MD5 SHA1 SHA512 SSDEEP

        vk_swiftshader.dll

        • Path C:\Users\Admin\AppData\Local\Discord\app-1.0.9036\vk_swiftshader.dll
        • Size 4.3MB
        • SHA256 4cfd5978ffa3d12a6626181a903b12346d8d1fa6a77fc60054012791b5a14684
        • MD5 SHA1 SHA512 SSDEEP

        Discord-1.0.9036-full.nupkg

        • Path C:\Users\Admin\AppData\Local\SquirrelTemp\Discord-1.0.9036-full.nupkg
        • Size 90.8MB
        • SHA256 113f50be0da02f24ad66855e4df614af732f0a180915fe84da8cb16213648029
        • MD5 SHA1 SHA512 SSDEEP

        RELEASES

        • Path C:\Users\Admin\AppData\Local\SquirrelTemp\RELEASES
        • Size 80B
        • SHA256 741de6fc0492beaeefc2f4398eb2faefcfaff09d58663296865bbabb63a55576
        • MD5 SHA1 SHA512

        Update.exe

        • Path C:\Users\Admin\AppData\Local\SquirrelTemp\Update.exe
        • Size 1.5MB
        • SHA256 a4711b64695282d32036ee09ab1a67bc55ba8fa98ff50bf3836539edf5861d52
        • MD5 SHA1 SHA512 SSDEEP

        default.dic

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.dic
        • Size 2B
        • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
        • MD5 SHA1 SHA512

        memory/1252-219-0x00000000743F0000-0x0000000074BA0000-memory.dmp

        memory/1252-290-0x00000000743F0000-0x0000000074BA0000-memory.dmp

        memory/1252-227-0x0000000004F60000-0x0000000004F80000-memory.dmp

        memory/1252-220-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

        memory/2808-207-0x0000000004BD0000-0x0000000004BE0000-memory.dmp

        memory/2808-9-0x00000000001A0000-0x0000000000316000-memory.dmp

        memory/2808-206-0x0000000006070000-0x000000000607E000-memory.dmp

        memory/2808-205-0x0000000006090000-0x00000000060C8000-memory.dmp

        memory/2808-204-0x0000000005810000-0x0000000005818000-memory.dmp

        memory/2808-10-0x00000000743F0000-0x0000000074BA0000-memory.dmp

        memory/2808-11-0x0000000004BD0000-0x0000000004BE0000-memory.dmp

        memory/2808-312-0x00000000743F0000-0x0000000074BA0000-memory.dmp

        memory/2808-313-0x0000000004BD0000-0x0000000004BE0000-memory.dmp

        memory/2808-314-0x0000000004BD0000-0x0000000004BE0000-memory.dmp