Resubmissions

14/07/2026, 17:46

260714-wcjgmacw416

14/07/2026, 17:44

260714-wa4psacw216

Analysis

  • user interaction
    yes
  • max time kernel
    101s
  • max time network
    103s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    14/07/2026, 17:44

General

  • Target
    OperaInstaller.exe
  • Size 178KB
  • Sample260714-wa4psacw21
  • SHA256 20b545c7b0b0cb56926972b7fc2a94f428b7aa3e4f9f4e65d1bd0ad800fb60b7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 41 IoCs
  • Suspicious use of SendNotifyMessage 16 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OperaInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\OperaInstaller.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:3252
  • 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
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4968
    • 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:4 --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=140.0.7339.81 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ff92f2ec728,0x7ff92f2ec734,0x7ff92f2ec740
      2⤵
        PID:3600
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1656,i,16601230223400980887,7681226438027791425,262144 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=1796 /prefetch:2
        2⤵
          PID:5024
        • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=1472,i,17170021124197869925,366509294968025821,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2212 /prefetch:11
          2⤵
          • Downloads MZ/PE file
          • System Time Discovery
          PID:5044
        • 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=service --force-high-res-timeticks=disabled --metrics-shmem-handle=2392,i,5524297958427205439,3836286773051724141,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2364 /prefetch:13
          2⤵
            PID:2268
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --metrics-shmem-handle=3232,i,704727793858455446,7890406014313179045,2097152 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3252 /prefetch:1
            2⤵
              PID:2632
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --metrics-shmem-handle=3260,i,5889361859565552794,4171071155483944707,2097152 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3308 /prefetch:1
              2⤵
                PID:3668
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --metrics-shmem-handle=4304,i,15994976230264712485,6085742827460007332,2097152 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4316 /prefetch:9
                2⤵
                  PID:3296
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --metrics-shmem-handle=4728,i,15279683573184247406,6751266288470228042,2097152 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4740 /prefetch:1
                  2⤵
                    PID:1856
                  • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=3904,i,8421051485235524712,16160608814861766753,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3212 /prefetch:14
                    2⤵
                      PID:1696
                    • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=5052,i,2155816721098996970,3994188894705191030,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5060 /prefetch:14
                      2⤵
                        PID:2908
                      • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=5520,i,14947501797618041007,18100138749915586736,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5532 /prefetch:14
                        2⤵
                          PID:1968
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --metrics-shmem-handle=5924,i,3162733770129792434,6154012332233333168,2097152 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5876 /prefetch:1
                          2⤵
                            PID:4020
                          • 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 --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5640,i,6860174441071730116,6461639878282410771,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5548 /prefetch:14
                            2⤵
                              PID:3916
                            • 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 --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5920,i,1910336806313974360,9931400146882183574,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5900 /prefetch:14
                              2⤵
                                PID:3104
                              • 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 --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5744,i,2986993927451964439,6824420802987597564,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5996 /prefetch:14
                                2⤵
                                  PID:3100
                                • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=4328,i,14438065183397963809,7308110552597277617,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5880 /prefetch:14
                                  2⤵
                                  • Subvert Trust Controls: Mark-of-the-Web Bypass
                                  • NTFS ADS
                                  PID:1996
                                • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=6104,i,9189909727094201801,585595827104816683,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4436 /prefetch:14
                                  2⤵
                                    PID:4988
                                  • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=4388,i,14933956229954886297,6870998961997400989,524288 --field-trial-handle=1904,i,17277824585053314814,5197464148005992898,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4376 /prefetch:14
                                    2⤵
                                      PID:1696
                                  • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                                    "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                                    1⤵
                                      PID:4592
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                      1⤵
                                        PID:2668

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            BookmarkMergedSurfaceOrdering

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BookmarkMergedSurfaceOrdering
                                            • Size 6B
                                            • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                                            • MD5 SHA1 SHA512

                                            BrowsingTopicsState

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                            • Size 414B
                                            • SHA256 59ac3d066a3cbb51473ac85167dfe2a571e5e29fa004e1658a21d712a37f0a49
                                            • MD5 SHA1 SHA512 TLSH

                                            SCT Auditing Pending Reports

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                            • Size 2B
                                            • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                            • MD5 SHA1 SHA512

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 13KB
                                            • SHA256 fd3837de95bb13a920cb7ac3a9955b93d50126bddabe32198a4d0876b12ea4a9
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 12KB
                                            • SHA256 e16a1908e19606b39c8f20aaf9aeb13b012f4a10717113e56cf9229198aa7a36
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 12KB
                                            • SHA256 f263dc260cf62dc3495aadc1931b336289bbbdfaf8ae1203f35cabc37600d8ad
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 12KB
                                            • SHA256 c036fb8e7950df2fbac4a46006850d8639f4d79c1ebb7534af9749cfa4a572b5
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Secure Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                            • Size 17KB
                                            • SHA256 86a708718cf15f4439caa697f6058448e2b7016cb1cef9cd2e54315587d87208
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            the-real-index

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                            • Size 120B
                                            • SHA256 c41ac08760439a03ab5ec5e060c49882b8f4d15ab3ab00b85cb049c08f15be1a
                                            • MD5 SHA1 SHA512 TLSH

                                            the-real-index~RFe593118.TMP

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe593118.TMP
                                            • Size 96B
                                            • SHA256 289ede132c1e0e42f14a89a4a10d8e95c8f071908fccab0c9c7b08c9ca2ea065
                                            • MD5 SHA1 SHA512 TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 232KB
                                            • SHA256 b1af3090af2d05b7b230885d0a54f1d0232dc3d1c67ba248e6a3d55b2f1edf60
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 232KB
                                            • SHA256 21f114d21bdaf6ebf47400c995f28b736488130f3030f25fec0b6012932dd778
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 115KB
                                            • SHA256 accb0e2ff754990d5fa88d28bee460eb54870ed3b3b7c386fc7119e4dc575bae
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            OperaInstaller.exe.crdownload

                                            • Path C:\Users\Admin\Downloads\OperaInstaller.exe.crdownload
                                            • Size 178KB
                                            • SHA256 20b545c7b0b0cb56926972b7fc2a94f428b7aa3e4f9f4e65d1bd0ad800fb60b7
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            OperaInstaller.exe:Zone.Identifier

                                            • Path C:\Users\Admin\Downloads\OperaInstaller.exe:Zone.Identifier
                                            • Size 68B
                                            • SHA256 3c45b6fc55f23d3e43561f260f34b041730f609a56325bde2c7feb52a13e8dbe
                                            • MD5 SHA1 SHA512 TLSH