Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/07/2025, 04:29

General

  • Target
    rl_98df906d9b4b3caaf8bf153ca197f209cf1d746313fb33abd2f6855842874594.exe
  • Size 2.3MB
  • Sample250702-e4qlksssey
  • SHA256 98df906d9b4b3caaf8bf153ca197f209cf1d746313fb33abd2f6855842874594
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • DeerStealer

    DeerStealer is a sophisticated information stealer written in C++.

  • Deerstealer family
  • Detects DonutLoader 1 IoCs
  • DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

  • Donutloader family
  • Detects DeerStealer 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rl_98df906d9b4b3caaf8bf153ca197f209cf1d746313fb33abd2f6855842874594.exe
    "C:\Users\Admin\AppData\Local\Temp\rl_98df906d9b4b3caaf8bf153ca197f209cf1d746313fb33abd2f6855842874594.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      2⤵
      • Drops file in Windows directory
      • 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:3740
      • 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=133.0.6943.60 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7fff4743dcf8,0x7fff4743dd04,0x7fff4743dd10
        3⤵
          PID:1152
        • 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 --string-annotations --field-trial-handle=1960,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=2052 /prefetch:11
          3⤵
            PID:4040
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --string-annotations --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --field-trial-handle=2020,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=2016 /prefetch:2
            3⤵
              PID:1512
            • 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 --string-annotations --field-trial-handle=2376,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=2396 /prefetch:13
              3⤵
                PID:2824
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --string-annotations --enable-dinosaur-easter-egg-alt-images --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 --field-trial-handle=3288,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=3348 /prefetch:1
                3⤵
                  PID:4724
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --string-annotations --enable-dinosaur-easter-egg-alt-images --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 --field-trial-handle=3280,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=3324 /prefetch:1
                  3⤵
                    PID:4516
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --string-annotations --extension-process --enable-dinosaur-easter-egg-alt-images --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 --field-trial-handle=4128,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=3372 /prefetch:9
                    3⤵
                      PID:2452
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --string-annotations --enable-dinosaur-easter-egg-alt-images --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 --field-trial-handle=4748,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4740 /prefetch:1
                      3⤵
                        PID:4868
                      • 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 --video-capture-use-gpu-memory-buffer --string-annotations --field-trial-handle=4852,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4656 /prefetch:14
                        3⤵
                          PID:576
                        • 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 --video-capture-use-gpu-memory-buffer --string-annotations --field-trial-handle=4636,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4640 /prefetch:14
                          3⤵
                            PID:1236
                          • 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 --video-capture-use-gpu-memory-buffer --string-annotations --field-trial-handle=5328,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5368 /prefetch:14
                            3⤵
                              PID:2788
                            • 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 --video-capture-use-gpu-memory-buffer --string-annotations --field-trial-handle=5608,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5620 /prefetch:14
                              3⤵
                                PID:3604
                              • 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 --video-capture-use-gpu-memory-buffer --string-annotations --field-trial-handle=5912,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5788 /prefetch:14
                                3⤵
                                  PID:3652
                                • 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 --video-capture-use-gpu-memory-buffer --string-annotations --field-trial-handle=5936,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=6016 /prefetch:14
                                  3⤵
                                    PID:1312
                                  • 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 --video-capture-use-gpu-memory-buffer --string-annotations --field-trial-handle=5976,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5384 /prefetch:14
                                    3⤵
                                      PID:2268
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.22000.1 --string-annotations --gpu-preferences=UAAAAAAAAADoAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAABCAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --field-trial-handle=5836,i,7768628220672667643,1114282774333649899,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5440 /prefetch:10
                                      3⤵
                                      • Suspicious behavior: EnumeratesProcesses
                                      PID:2696
                                • C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe
                                  "C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe"
                                  1⤵
                                    PID:984
                                  • C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe
                                    "C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe"
                                    1⤵
                                      PID:124
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                      1⤵
                                        PID:1708

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            BrowsingTopicsState

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                            • Size 649B
                                            • SHA256 94177c8166b48d01de5e8d00d6f4e35e212696c5716df573a1f6c8225d631aef
                                            • MD5 SHA1 SHA512

                                            Network Persistent State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                            • Size 2KB
                                            • SHA256 9eb91682a9642a9426ec572773d3380f59d26a14a2cf65056873e1cb1a490580
                                            • MD5 SHA1 SHA512

                                            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 10KB
                                            • SHA256 b47ad3ad10f5acdba5bd78b061dbd34c1a4572d3121ac715571ea3d7baf1264a
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Secure Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                            • Size 15KB
                                            • SHA256 70ad945e0d44ea3f5193f0ee905b2f02289b3917e2932389e15a2386ef2124fa
                                            • MD5 SHA1 SHA512 SSDEEP

                                            the-real-index

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                            • Size 72B
                                            • SHA256 97dc7de0a3798961b8e6c5db44c6960f35fd93a71d3b093994737994b23c7d22
                                            • MD5 SHA1 SHA512

                                            the-real-index~RFe57ad38.TMP

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe57ad38.TMP
                                            • Size 48B
                                            • SHA256 ebbadbd8586c03f88a00c16ae008747324fd36cd242f6646ead03dcdc2275755
                                            • MD5 SHA1 SHA512

                                            Last Version

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Last Version
                                            • Size 13B
                                            • SHA256 7114eaf0a021d2eb098b1e9f56f3500dc4f74ac68a87f5256922e4a4b9fa66b7
                                            • MD5 SHA1 SHA512

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 164KB
                                            • SHA256 30e0dcfe09cbf8ce8c55766f914af02a4d3e2cb2778294ec28e918849ae58110
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 164KB
                                            • SHA256 b9221b63b0480dd721e22031d10b0da17e61c6c977662cf156018b54d6114873
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 83KB
                                            • SHA256 a2af5374f6a87b6bd024a85832c79d1e20f2ebeed22a9d9997286a5816db1d92
                                            • MD5 SHA1 SHA512 SSDEEP

                                            memory/4624-87-0x00007FF68E4E0000-0x00007FF68E7CF000-memory.dmp

                                            memory/4624-0-0x00007FF68E4E0000-0x00007FF68E7CF000-memory.dmp