Analysis

  • max time kernel
    900s
  • max time network
    664s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-de
  • resource tags

    arch:x64arch:x86image:win11-20260911-delocale:de-deos:windows11-21h2-x64systemwindows
  • submitted
    13/11/2026, 17:44

General

  • Target
    BetaBrowser.exe
  • Size 236.1MB
  • Sample261113-wbk9tset21
  • SHA256 dbcb033cbdb7f37d6d61709c455b10e6f9f9e8ffd0b9856153c6e24bf4c6359d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Reads ssh keys stored on the system 2 TTPs

    Tries to access SSH used by SSH programs.

  • Network Service Discovery 1 TTPs 1 IoCs

    Attempt to gather information on host's network.

  • Drops file in Windows directory 9 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe
    "C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe"
    1⤵
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2060
    • C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe
      "C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\BetaBrowser" --gpu-preferences=WAAAAAAAAADgAAAEAAAAAAAAAAAAAGAAQAAAAAAAAAADAAAAAAAAADgAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAKAAAAAAAAAAoAAAAAAAAAAgAAAAAAAAAEAAAAAIAAAABAAAAAAAAAAgAAAAAAAAACAAAAAAAAAA= --field-trial-handle=1904,i,1691605538960518731,11499686899429218087,262144 --enable-features=AllowWindowCaptureExclusionInRemoteSessions,PdfUseShowSaveFilePicker --disable-features=DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1908,i,7590516571360693597,2657099666464417106,4 --trace-process-track-uuid=3190708988185955192 --mojo-platform-channel-handle=1900 /prefetch:2
      2⤵
        PID:3584
      • C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe
        "C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=de --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\BetaBrowser" --bypasscsp-schemes=crx --field-trial-handle=1904,i,1691605538960518731,11499686899429218087,262144 --enable-features=AllowWindowCaptureExclusionInRemoteSessions,PdfUseShowSaveFilePicker --disable-features=DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1908,i,7590516571360693597,2657099666464417106,4 --trace-process-track-uuid=3190708989122997041 --mojo-platform-channel-handle=2156 /prefetch:11
        2⤵
        • Reads the TCP/IP host and domain name from the registry
        PID:5140
      • C:\Windows\system32\reg.exe
        reg.exe query HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall /s
        2⤵
        • Modifies registry key
        PID:6076
      • C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe
        "C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\BetaBrowser" --bypasscsp-schemes=crx --app-user-model-id=de.betabrowser.app --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --enable-sandbox --mse-audio-buffer-size-limit-mb=40 --mse-video-buffer-size-limit-mb=400 --video-capture-use-gpu-memory-buffer --lang=de --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=4 --launch-time-ticks=549707436 --field-trial-handle=1904,i,1691605538960518731,11499686899429218087,262144 --enable-features=AllowWindowCaptureExclusionInRemoteSessions,PdfUseShowSaveFilePicker --disable-features=DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1908,i,7590516571360693597,2657099666464417106,4 --trace-process-track-uuid=3190708990060038890 --mojo-platform-channel-handle=2460 /prefetch:1
        2⤵
          PID:1956
        • C:\Windows\system32\reg.exe
          reg.exe query HKCU\Software\Clients\StartMenuInternet\BetaBrowser
          2⤵
          • Modifies registry key
          PID:2656
        • C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe
          "C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=de --service-sandbox-type=service --user-data-dir="C:\Users\Admin\AppData\Roaming\BetaBrowser" --bypasscsp-schemes=crx --field-trial-handle=1904,i,1691605538960518731,11499686899429218087,262144 --enable-features=AllowWindowCaptureExclusionInRemoteSessions,PdfUseShowSaveFilePicker --disable-features=DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1908,i,7590516571360693597,2657099666464417106,4 --trace-process-track-uuid=3190708990997080739 --mojo-platform-channel-handle=3496 /prefetch:14
          2⤵
            PID:5372
          • C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe
            "C:\Users\Admin\AppData\Local\Temp\BetaBrowser.exe" --type=gpu-process --disable-gpu-sandbox --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.22000.1 --user-data-dir="C:\Users\Admin\AppData\Roaming\BetaBrowser" --gpu-preferences=WAAAAAAAAADoAAAEAAAAAAAAAAAAAGAAQAAAAAAAAAAAAAAAAAAAADgAAAAAAAAAAAAAAAAAAABCAAAAAAAAAAAAAAAAAAAAKAAAAAAAAAAoAAAAAAAAAAgAAAAAAAAADAAAAAEAAAAAAAAAAAAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=d3d11-warp-webgl --field-trial-handle=1904,i,1691605538960518731,11499686899429218087,262144 --enable-features=AllowWindowCaptureExclusionInRemoteSessions,PdfUseShowSaveFilePicker --disable-features=DropInputEventsWhilePaintHolding,LocalNetworkAccessChecks,NetworkServiceSandbox,ScreenAIOCREnabled,SpareRendererForSitePerProcess,TraceSiteInstanceGetProcessCreation --variations-seed-version --pseudonymization-salt-handle=1908,i,7590516571360693597,2657099666464417106,4 --trace-process-track-uuid=3190708991934122588 --mojo-platform-channel-handle=2796 /prefetch:10
            2⤵
            • Network Service Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:4888

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              temp-index

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\Code Cache\js\index-dir\temp-index
              • Size 48B
              • SHA256 0af65e9178e251015b6b1a74757eaea9c32df8e7a62d68802f7530f6f1f9e0b4
              • MD5 SHA1 SHA512

              data_0

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\DawnGraphiteCache\data_0
              • Size 8KB
              • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
              • MD5 SHA1 SHA512 SSDEEP

              data_1

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\DawnGraphiteCache\data_1
              • Size 264KB
              • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
              • MD5 SHA1 SHA512 SSDEEP

              data_2

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\DawnGraphiteCache\data_2
              • Size 8KB
              • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
              • MD5 SHA1 SHA512 SSDEEP

              data_3

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\DawnGraphiteCache\data_3
              • Size 8KB
              • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
              • MD5 SHA1 SHA512 SSDEEP

              Local State

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\Local State
              • Size 717B
              • SHA256 36840bb25c86c3d7721d9e27f0ee84e52cd316a2b26b812d07317c0b77c31e01
              • MD5 SHA1 SHA512 TLSH

              Local State00dc057c-2d61-4d91-a0ca-baff332cb4a9.tmp

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\Local State00dc057c-2d61-4d91-a0ca-baff332cb4a9.tmp
              • Size 717B
              • SHA256 3cfd0f39a74b8e30b7274c6a1e286ee9e30dfd7ab529c334429c517d8ed65208
              • MD5 SHA1 SHA512 TLSH

              CURRENT

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\Local Storage\leveldb\CURRENT
              • Size 16B
              • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
              • MD5 SHA1 SHA512

              Network Persistent State

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\Network\Network Persistent State
              • Size 59B
              • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
              • MD5 SHA1 SHA512 TLSH

              Network Persistent State7bd578a8-245f-41a0-a5d9-78fd5c8d8208.tmp

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\Network\Network Persistent State7bd578a8-245f-41a0-a5d9-78fd5c8d8208.tmp
              • Size 476B
              • SHA256 f3ee39028f858c784db376c215db511b5250ebd2615873c71162644765803a80
              • MD5 SHA1 SHA512 TLSH

              LICENSE

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\WidevineCdm\4.10.3112.0\LICENSE
              • Size 473B
              • SHA256 20de375707692099b3132084695377ce5fec0aec05813dedcce094b8eda44386
              • MD5 SHA1 SHA512 TLSH

              manifest.json

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\WidevineCdm\4.10.3112.0\manifest.json
              • Size 1005B
              • SHA256 1cc15465230ffb75fd028ee3b2189c8774f56bc7dee8dd17b952e6ca92144004
              • MD5 SHA1 SHA512 TLSH

              1090c5d6881985c042370d506e15f1db1d0a88bfb7e9602a9202fac421098eb3

              • Path C:\Users\Admin\AppData\Roaming\BetaBrowser\component_crx_cache\1090c5d6881985c042370d506e15f1db1d0a88bfb7e9602a9202fac421098eb3
              • Size 21.9MB
              • SHA256 1090c5d6881985c042370d506e15f1db1d0a88bfb7e9602a9202fac421098eb3
              • MD5 SHA1 SHA512 SSDEEP TLSH

              verified_contents.json

              • Path C:\Windows\SystemTemp\chromium_chrome_Unpacker_BeginUnzipping2060_766274767\_metadata\verified_contents.json
              • Size 1KB
              • SHA256 a6ce8c1d0d27c54034e67a83270bf3fd2bdfcc45ffc4b9084357169c00c90f77
              • MD5 SHA1 SHA512 TLSH

              widevinecdm.dll

              • Path C:\Windows\SystemTemp\chromium_chrome_Unpacker_BeginUnzipping2060_766274767\_platform_specific\win_x64\widevinecdm.dll
              • Size 21.9MB
              • SHA256 7b44e84403fbb3faee15ca2d56eb8432fdf4eb68812c4460abdd20972528e825
              • MD5 SHA1 SHA512 SSDEEP TLSH

              widevinecdm.dll.sig

              • Path C:\Windows\SystemTemp\chromium_chrome_Unpacker_BeginUnzipping2060_766274767\_platform_specific\win_x64\widevinecdm.dll.sig
              • Size 1KB
              • SHA256 f9f160cb5ca37ef81a3aa80eeb7fef8b302e18c82d92c34f42503e0ab085ada5
              • MD5 SHA1 SHA512 TLSH

              image.ico

              • Path C:\Windows\SystemTemp\scoped_dir2060_1754125474\image.ico
              • Size 107KB
              • SHA256 2986e62d120af0389aebe2a4912e4b3bdc3c6192700fed85e454620be977751e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/1956-32-0x00007FFCB8850000-0x00007FFCB8851000-memory.dmp

              memory/1956-34-0x00007FFCB8530000-0x00007FFCB8531000-memory.dmp

              memory/3584-151-0x0000027A89750000-0x0000027A8AFE8000-memory.dmp

              memory/3584-148-0x0000027A89750000-0x0000027A8AFE8000-memory.dmp

              memory/3584-213-0x0000027A89750000-0x0000027A8AFE8000-memory.dmp

              memory/4888-188-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-178-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-190-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-189-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-179-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-187-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-186-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-185-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-184-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp

              memory/4888-191-0x0000017F725E0000-0x0000017F73E78000-memory.dmp

              memory/4888-180-0x0000017F73FE0000-0x0000017F73FE1000-memory.dmp