Analysis

  • max time kernel
    149s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250619-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-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
  • Downloads MZ/PE file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • 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 24 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⤵
    • Downloads MZ/PE file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3408
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      2⤵
      • Checks processor information in registry
      • 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:4820
      • 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=0xf8,0xfc,0x100,0xd4,0x104,0x7fffb24adcf8,0x7fffb24add04,0x7fffb24add10
        3⤵
          PID:232
        • 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=2028,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=2024 /prefetch:2
          3⤵
            PID:2552
          • 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=1556,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=2248 /prefetch:3
            3⤵
              PID:2224
            • 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=2352,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=2372 /prefetch:8
              3⤵
                PID:2296
              • 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=3168,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=3204 /prefetch:1
                3⤵
                  PID:1300
                • 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=3176,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=3432 /prefetch:1
                  3⤵
                    PID:4388
                  • 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=4360,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4376 /prefetch:2
                    3⤵
                      PID:5092
                    • 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=4704,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4696 /prefetch:1
                      3⤵
                        PID:4488
                      • 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=4828,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4304 /prefetch:8
                        3⤵
                          PID:3104
                        • 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=4960,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4972 /prefetch:8
                          3⤵
                            PID:624
                          • 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=5484,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5356 /prefetch:8
                            3⤵
                              PID:3080
                            • 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=5592,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5604 /prefetch:8
                              3⤵
                                PID:2928
                              • 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=208,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5552 /prefetch:8
                                3⤵
                                  PID:4956
                                • 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=5628,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5740 /prefetch:8
                                  3⤵
                                    PID:4068
                                  • 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=5724,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=5644 /prefetch:8
                                    3⤵
                                      PID:4776
                                    • 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=10.0.19041.546 --string-annotations --gpu-preferences=UAAAAAAAAADoAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAABCAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --field-trial-handle=5824,i,16609933787658999584,2219350036721303749,262144 --variations-seed-version=20250618-180047.684000 --mojo-platform-channel-handle=4504 /prefetch:8
                                      3⤵
                                      • Suspicious behavior: EnumeratesProcesses
                                      PID:1072
                                • 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:1948
                                  • 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:2696
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                      1⤵
                                        PID:1312

                                      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 bd92506f8bc39bd51107514355abec65f3d9104af4a3f78bcefb29bc4fcf08b7
                                            • MD5 SHA1 SHA512

                                            Network Persistent State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                            • Size 2KB
                                            • SHA256 61b4f7b2a70b02d0b59bb2d58b941e7953fc94e7410638face10fff914f75aa5
                                            • 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 5a68562e7c0ecfe812755e6c46edd6fd4da653a2d8bec950a0ae9530c47ee945
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Secure Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                            • Size 15KB
                                            • SHA256 8771f8a67e22ec31c7d201b071fa892bf6bf4f375d883c2570ae216505ece82d
                                            • 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 20880bcafeaf0c05c07be8a2080bb8565d8df40b1e511902ab7781a3d32df646
                                            • MD5 SHA1 SHA512

                                            the-real-index~RFe57fb19.TMP

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe57fb19.TMP
                                            • Size 48B
                                            • SHA256 73bc50de4fe781b9bb5d258ebe85631924585e44ca821a2d3f18da5e3d8e125f
                                            • 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 2b8d5cf479fb5e24f5de9e1b25ae140b034dffac7a39e09f8887ec781fbd8197
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 83KB
                                            • SHA256 cc2e80da3b123df92b11d7a86c168fc03885a548adcfdde219547d39d31303ae
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 164KB
                                            • SHA256 e9ec29bf137456751476e58eceb786dfd8c12e26710551ac5bfc5296550f5ce8
                                            • MD5 SHA1 SHA512 SSDEEP

                                            memory/3408-87-0x00007FF752FF0000-0x00007FF7532DF000-memory.dmp

                                            memory/3408-0-0x00007FF752FF0000-0x00007FF7532DF000-memory.dmp