Analysis

  • max time kernel
    1716s
  • max time network
    1774s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/11/2024, 07:18

General

  • Target
    SteamtoolsSetup.exe
  • Size 978KB
  • Sample241115-h5d6qa1blh
  • SHA256 c9f2e2abb046ff2535537182edf9a9b748aa10a22e98a1d8c948d874f4ffb304
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Downloads MZ/PE file
  • Detected potential entity reuse from brand STEAM.
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 14 IoCs
  • Suspicious use of FindShellTrayWindow 32 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SteamtoolsSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\SteamtoolsSetup.exe"
    1⤵
      PID:1944
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default
      1⤵
      • Enumerates system info in registry
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4200
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ff917bd46f8,0x7ff917bd4708,0x7ff917bd4718
        2⤵
          PID:5068
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2020 /prefetch:2
          2⤵
            PID:4784
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2448 /prefetch:3
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1260
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2928 /prefetch:8
            2⤵
              PID:1848
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3480 /prefetch:1
              2⤵
                PID:4312
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3488 /prefetch:1
                2⤵
                  PID:3000
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5088 /prefetch:1
                  2⤵
                    PID:4380
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5256 /prefetch:1
                    2⤵
                      PID:3312
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3564 /prefetch:1
                      2⤵
                        PID:2448
                      • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5484 /prefetch:8
                        2⤵
                          PID:1564
                        • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5484 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:2844
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=212 /prefetch:1
                          2⤵
                            PID:2508
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5684 /prefetch:1
                            2⤵
                              PID:4308
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6024 /prefetch:1
                              2⤵
                                PID:3284
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5648 /prefetch:1
                                2⤵
                                  PID:388
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5976 /prefetch:1
                                  2⤵
                                    PID:2724
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5844 /prefetch:1
                                    2⤵
                                      PID:3172
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=17 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5388 /prefetch:1
                                      2⤵
                                        PID:1128
                                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=18 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5368 /prefetch:1
                                        2⤵
                                          PID:464
                                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=5632 /prefetch:8
                                          2⤵
                                            PID:4588
                                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=21 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5604 /prefetch:1
                                            2⤵
                                              PID:116
                                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=6544 /prefetch:8
                                              2⤵
                                                PID:3360
                                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1984,17672992964998094657,10939681502502402443,131072 --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 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=5400 /prefetch:2
                                                2⤵
                                                • Suspicious behavior: EnumeratesProcesses
                                                PID:4308
                                            • C:\Windows\System32\CompPkgSrv.exe
                                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                                              1⤵
                                                PID:4220
                                              • C:\Windows\System32\CompPkgSrv.exe
                                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                                1⤵
                                                  PID:5080

                                                Network

                                                      MITRE ATT&CK Enterprise v15

                                                      Replay Monitor

                                                      Loading Replay Monitor...

                                                      Downloads

                                                      settings.dat

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                                      • Size 152B
                                                      • SHA256 1b034ffe38e534e2b7a21be7c1f207ff84a1d5f3893207d0b4bb1a509b4185ea
                                                      • MD5 SHA1 SHA512

                                                      settings.dat

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                                      • Size 152B
                                                      • SHA256 d7e96088b37cec1bde202ae8ec2d2f3c3aafc368b6ebd91b3e2985846facf2e6
                                                      • MD5 SHA1 SHA512

                                                      the-real-index

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                                                      • Size 1KB
                                                      • SHA256 4366bdb3ca7ad176f0d49c362829f70d05d86fab8203ad429ff14d6483d60755
                                                      • MD5 SHA1 SHA512

                                                      Network Persistent State

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                                      • Size 1KB
                                                      • SHA256 ce5a94e17cef56caabce41b48402961678a39f584452e8b8d357cdba18fe733d
                                                      • MD5 SHA1 SHA512

                                                      Network Persistent State

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                                      • Size 1KB
                                                      • SHA256 ad9f8a7636a22e5e5ff535e001f780fe315408639b7cab025b91933b043d658a
                                                      • MD5 SHA1 SHA512

                                                      Network Persistent State

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                                      • Size 1KB
                                                      • SHA256 e999f6cd6b3d4bbef80ec01ec648c0db4b16cec600623e6294904447c5c7f183
                                                      • MD5 SHA1 SHA512

                                                      Network Persistent State

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                                      • Size 807B
                                                      • SHA256 d020364dc51250e9fea9b0966c53eb65e71a7cd6f5c6c9ddf7eb949436a08eef
                                                      • MD5 SHA1 SHA512

                                                      Network Persistent State

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                                                      • Size 1KB
                                                      • SHA256 b370301b5788627789da20691f5ac2fb6b1b4ab896ca478fc738cd7df5601dbb
                                                      • MD5 SHA1 SHA512

                                                      Preferences

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                                      • Size 5KB
                                                      • SHA256 d3e2d9513a87afdfb9a7f07757ec768d8992cb982609d7dfd551f1f73519d784
                                                      • MD5 SHA1 SHA512 SSDEEP

                                                      Preferences

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                                      • Size 6KB
                                                      • SHA256 3f8d570cbb8e2f7b3a109eea89e7d6eb83fe7d6d79b828e6e1288f79f8159f8f
                                                      • MD5 SHA1 SHA512 SSDEEP

                                                      Preferences

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                                      • Size 6KB
                                                      • SHA256 fa4cad9df08b9cb94f4166e7424bce173580cdc796f0a341bd1fde6f94920b76
                                                      • MD5 SHA1 SHA512 SSDEEP

                                                      CURRENT

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                                      • Size 16B
                                                      • SHA256 0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd
                                                      • MD5 SHA1 SHA512

                                                      Local State

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                                      • Size 10KB
                                                      • SHA256 a5ea1aafc4e323b6cab1eb23e2fc75e1d8d3716121f5dc2d11ddf82ea559044c
                                                      • MD5 SHA1 SHA512 SSDEEP

                                                      Local State

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                                      • Size 10KB
                                                      • SHA256 59426fa3586937ef4d734b5a00ee7f89e5a1ebb872fee35463511d71ee67312e
                                                      • MD5 SHA1 SHA512 SSDEEP

                                                      Unconfirmed 536672.crdownload

                                                      • Path C:\Users\Admin\Downloads\Unconfirmed 536672.crdownload
                                                      • Size 2.3MB
                                                      • SHA256 7d3654531c32d941b8cae81c4137fc542172bfa9635f169cb392f245a0a12bcb
                                                      • MD5 SHA1 SHA512 SSDEEP