Resubmissions

15-11-2024 18:21

241115-wzpl6azaqj 8

15-11-2024 18:20

241115-wy7rcazapm 8

Analysis

  • max time kernel
    29s
  • max time network
    31s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    15-11-2024 18:20

General

  • Target

    SteamtoolsSetup.exe

  • Size

    978KB

  • MD5

    bbf15e65d4e3c3580fc54adf1be95201

  • SHA1

    79091be8f7f7a6e66669b6a38e494cf7a62b5117

  • SHA256

    c9f2e2abb046ff2535537182edf9a9b748aa10a22e98a1d8c948d874f4ffb304

  • SHA512

    9bb261b4ed84af846e07ffb6352960687e59428fd497faa0a37d70b57a1a7430d48ac350fbb0c3f0f11e4231a98ebca4d6923deba0949fdd7a247a3c02737355

  • SSDEEP

    24576:4Fa9OUi2VoN2gZ1M8UQag3BXrYZt+GgGTfG74T+TRcL:Z9OUiTN2gZ1MExEZkkf+4TARg

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
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 14 IoCs
  • Suspicious use of FindShellTrayWindow 30 IoCs
  • Suspicious use of SendNotifyMessage 12 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:3888
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      1⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4796
      • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7fff70953cb8,0x7fff70953cc8,0x7fff70953cd8
        2⤵
          PID:4748
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1908 /prefetch:2
          2⤵
            PID:4684
          • 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=1896,9434187863470286582,10297859708055366020,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2336 /prefetch:3
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:4500
          • 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=1896,9434187863470286582,10297859708055366020,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2560 /prefetch:8
            2⤵
              PID:3712
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=3188 /prefetch:1
              2⤵
                PID:1528
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=3204 /prefetch:1
                2⤵
                  PID:3460
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=4604 /prefetch:1
                  2⤵
                    PID:3984
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=4636 /prefetch:1
                    2⤵
                      PID:4204
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=4616 /prefetch:1
                      2⤵
                        PID:1300
                      • 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.UtilWin --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4472 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:3532
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=4856 /prefetch:1
                        2⤵
                          PID:940
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=5148 /prefetch:1
                          2⤵
                            PID:2900
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=5428 /prefetch:1
                            2⤵
                              PID:2664
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=5308 /prefetch:1
                              2⤵
                                PID:3940
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5312 /prefetch:1
                                2⤵
                                  PID:4320
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=16 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5396 /prefetch:1
                                  2⤵
                                    PID:4624
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6248 /prefetch:8
                                    2⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:3772
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=3456 /prefetch:1
                                    2⤵
                                      PID:4820
                                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=19 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5588 /prefetch:1
                                      2⤵
                                        PID:3168
                                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1896,9434187863470286582,10297859708055366020,131072 --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=20 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3412 /prefetch:1
                                        2⤵
                                          PID:3584
                                      • C:\Windows\System32\CompPkgSrv.exe
                                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                                        1⤵
                                          PID:3260
                                        • C:\Windows\System32\CompPkgSrv.exe
                                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                                          1⤵
                                            PID:3544

                                          Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                            Filesize

                                            152B

                                            MD5

                                            e1544690d41d950f9c1358068301cfb5

                                            SHA1

                                            ae3ff81363fcbe33c419e49cabef61fb6837bffa

                                            SHA256

                                            53d69c9cc3c8aaf2c8b58ea6a2aa47c49c9ec11167dd9414cd9f4192f9978724

                                            SHA512

                                            1e4f1fe2877f4f947d33490e65898752488e48de34d61e197e4448127d6b1926888de80b62349d5a88b96140eed0a5b952ef4dd7ca318689f76e12630c9029da

                                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                            Filesize

                                            152B

                                            MD5

                                            9314124f4f0ad9f845a0d7906fd8dfd8

                                            SHA1

                                            0d4f67fb1a11453551514f230941bdd7ef95693c

                                            SHA256

                                            cbd58fa358e4b1851c3da2d279023c29eba66fb4d438c6e87e7ce5169ffb910e

                                            SHA512

                                            87b9060ca4942974bd8f95b8998df7b2702a3f4aba88c53b2e3423a532a75407070368f813a5bbc0251864b4eae47e015274a839999514386d23c8a526d05d85

                                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                            Filesize

                                            5KB

                                            MD5

                                            efaa5da9babdf3346a0ef0be0de08111

                                            SHA1

                                            4eadac6b6045f2ae23fdebbd857e0aec7426a38c

                                            SHA256

                                            31588fab358e7fddc376a49f0f00f20f5c74fb123389bfb9a235cf9990b3910b

                                            SHA512

                                            ce2344144689f033fd54b1831b0b7c349b25e92d67912fd8cfb16e6ebbd1a6428c93aba217ae8038727c9c0fe209ebd198d065c08b79486ab6a3ba4a579db4eb

                                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                            Filesize

                                            6KB

                                            MD5

                                            ebb8013dacb808491a7d932c8f69ac94

                                            SHA1

                                            602e22fed1c2fa4d20975e818370db72b7527092

                                            SHA256

                                            2d329faeea0940bdb679c60767d13ac66d3d59bf38a2bb4519bf7bfbfcbb67dc

                                            SHA512

                                            94a72b93e8d9eb9ac8d0a14956bfb7cd26ad00f5a4bdff763dacf8d89038c0bb1866bb7032eaeec457ae2d280767a2108b9af716519cd2efc4c51c3c54cdbd4f

                                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                            Filesize

                                            16B

                                            MD5

                                            46295cac801e5d4857d09837238a6394

                                            SHA1

                                            44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                            SHA256

                                            0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                            SHA512

                                            8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

                                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                            Filesize

                                            16B

                                            MD5

                                            206702161f94c5cd39fadd03f4014d98

                                            SHA1

                                            bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                            SHA256

                                            1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                            SHA512

                                            0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

                                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                                            Filesize

                                            10KB

                                            MD5

                                            0814c20cf5eb2a5ceab735c598af957a

                                            SHA1

                                            0b25d14eedc6c6a3435b5807351ca22b74c9f0a8

                                            SHA256

                                            0672325e9e43e1722697899844c1c20648c7546a2d37656835e20d62fb1fd2f9

                                            SHA512

                                            93d0ee41d74c5356f47ce20d89da48c183f597f4c315a1f1a94e95a585a979d621740bd209eb116eb12aba4188216dd1f002daaf476b0d9f18b4391c8bb45486

                                          • \??\pipe\LOCAL\crashpad_4796_ZPSPQISSSYDCHLNL

                                            MD5

                                            d41d8cd98f00b204e9800998ecf8427e

                                            SHA1

                                            da39a3ee5e6b4b0d3255bfef95601890afd80709

                                            SHA256

                                            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                            SHA512

                                            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e