Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 09:45

General

  • Target

    2024-05-23_199f7cdc7ac342e36e5d23b351e1fc20_ryuk.exe

  • Size

    4.0MB

  • MD5

    199f7cdc7ac342e36e5d23b351e1fc20

  • SHA1

    33bd8435d26c76782b563c382b658906e4fcead5

  • SHA256

    4b2e0a65ccc9dc001c14114369bcd567e2f4ec63dee471911c253116784636d9

  • SHA512

    d49cbe8ef4ee32297ab053e89aac234083d564768e5bdbe0eef54695df7f1c3af0512e4ef64207707c4a81470838921c7064c2bb3122c466cedbb8981b363a01

  • SSDEEP

    49152:bZZ3v2piy/Gjw1uZ2KWUEC8s1gDK1hPuWDpXGMKpBP8iBjcDoDLNnrFclC/qtB4j:RcC3HPuWgjh8k3G

Score
7/10

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-23_199f7cdc7ac342e36e5d23b351e1fc20_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_199f7cdc7ac342e36e5d23b351e1fc20_ryuk.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:116
    • C:\Users\Admin\AppData\Local\Temp\2024-05-23_199f7cdc7ac342e36e5d23b351e1fc20_ryuk.exe
      C:\Users\Admin\AppData\Local\Temp\2024-05-23_199f7cdc7ac342e36e5d23b351e1fc20_ryuk.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=125.0.6422.76 --initial-client-data=0x268,0x26c,0x270,0x244,0x274,0x7ff78e672698,0x7ff78e6726a4,0x7ff78e6726b0
      2⤵
        PID:5092
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --force-first-run
        2⤵
        • 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 WriteProcessMemory
        PID:1960
        • 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:7 --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=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7fff16cbab58,0x7fff16cbab68,0x7fff16cbab78
          3⤵
            PID:3476
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1716 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:2
            3⤵
              PID:3604
            • 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 --mojo-platform-channel-handle=2148 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
              3⤵
                PID:3036
              • 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 --mojo-platform-channel-handle=2224 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                3⤵
                  PID:2108
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3060 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:1
                  3⤵
                    PID:3660
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3084 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:1
                    3⤵
                      PID:4320
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4320 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:1
                      3⤵
                        PID:1536
                      • 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 --mojo-platform-channel-handle=4496 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                        3⤵
                          PID:4676
                        • 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 --mojo-platform-channel-handle=4628 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                          3⤵
                            PID:4428
                          • 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 --mojo-platform-channel-handle=4492 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                            3⤵
                              PID:376
                            • 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 --mojo-platform-channel-handle=4936 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                              3⤵
                                PID:2564
                              • 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 --mojo-platform-channel-handle=4000 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                                3⤵
                                  PID:1816
                                • C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe
                                  "C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe" --configure-user-settings --verbose-logging --system-level --force-configure-user-settings
                                  3⤵
                                    PID:4776
                                    • C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe
                                      "C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\Crashpad --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=110.0.5481.104 --initial-client-data=0x238,0x23c,0x240,0x214,0x244,0x7ff7b294ae48,0x7ff7b294ae58,0x7ff7b294ae68
                                      4⤵
                                        PID:5008
                                      • C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe
                                        "C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe" --system-level --verbose-logging --installerdata="C:\Program Files\Google\Chrome\Application\master_preferences" --create-shortcuts=1 --install-level=0
                                        4⤵
                                        • Modifies registry class
                                        • Suspicious use of FindShellTrayWindow
                                        PID:1788
                                        • C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe
                                          "C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\Crashpad --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=110.0.5481.104 --initial-client-data=0x238,0x23c,0x240,0x214,0x244,0x7ff7b294ae48,0x7ff7b294ae58,0x7ff7b294ae68
                                          5⤵
                                            PID:3968
                                      • 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 --mojo-platform-channel-handle=4604 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                                        3⤵
                                          PID:4488
                                        • 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 --mojo-platform-channel-handle=4808 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:8
                                          3⤵
                                            PID:4924
                                          • 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 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1628 --field-trial-handle=1912,i,7221873734652693790,8040813718699406930,131072 /prefetch:2
                                            3⤵
                                            • Suspicious behavior: EnumeratesProcesses
                                            PID:2528
                                      • C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
                                        "C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
                                        1⤵
                                          PID:1620

                                        Network

                                        MITRE ATT&CK Matrix ATT&CK v13

                                        Credential Access

                                        Unsecured Credentials

                                        1
                                        T1552

                                        Credentials In Files

                                        1
                                        T1552.001

                                        Discovery

                                        Query Registry

                                        1
                                        T1012

                                        System Information Discovery

                                        1
                                        T1082

                                        Collection

                                        Data from Local System

                                        1
                                        T1005

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • C:\Program Files\Google\Chrome\Application\SetupMetrics\e0b347ed-f7a2-4ab4-85b1-d3f8461a3026.tmp
                                          Filesize

                                          488B

                                          MD5

                                          6d971ce11af4a6a93a4311841da1a178

                                          SHA1

                                          cbfdbc9b184f340cbad764abc4d8a31b9c250176

                                          SHA256

                                          338ddefb963d5042cae01de7b87ac40f4d78d1bfa2014ff774036f4bc7486783

                                          SHA512

                                          c58b59b9677f70a5bb5efd0ecbf59d2ac21cbc52e661980241d3be33663825e2a7a77adafbcec195e1d9d89d05b9ccb5e5be1a201f92cb1c1f54c258af16e29f

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\settings.dat
                                          Filesize

                                          40B

                                          MD5

                                          d0df793c4e281659228b2837846ace2d

                                          SHA1

                                          ece0a5b1581f86b175ccbc7822483448ec728077

                                          SHA256

                                          4e5ceefae11a45c397cde5c6b725c18d8c63d80d2ce851fa94df1644169eafc9

                                          SHA512

                                          400a81d676e5c1e8e64655536b23dbae0a0dd47dc1e87e202e065903396e6a106770cec238093d748b9c71b5859edf097ffff2e088b5b79d6a449754140a52ad

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Google Profile.ico
                                          Filesize

                                          193KB

                                          MD5

                                          ef36a84ad2bc23f79d171c604b56de29

                                          SHA1

                                          38d6569cd30d096140e752db5d98d53cf304a8fc

                                          SHA256

                                          e9eecf02f444877e789d64c2290d6922bd42e2f2fe9c91a1381959acd3292831

                                          SHA512

                                          dbb28281f8fa86d9084a0c3b3cdb6007c68aa038d8c28fe9b69ac0c1be6dc2141ca1b2d6a444821e25ace8e92fb35c37c89f8bce5fee33d6937e48b2759fa8be

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                          Filesize

                                          1KB

                                          MD5

                                          66bc4ee56356e6191765792edcd2c5ee

                                          SHA1

                                          5c49b74d8e2e62dce113cb94ed8965f4a19b7027

                                          SHA256

                                          b7c2185ceab551550582eb7b05dfd6b5c05cae114f17854f90fab659bf162999

                                          SHA512

                                          a3152878bf06b6e917df5cd058a2ed4a50152b6f94a65cf7889db53a43a3a4531fb15717beaf6b8aa84c73ef37de2a6cd8b21494d996b03466de71e2122cf423

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                          Filesize

                                          2B

                                          MD5

                                          d751713988987e9331980363e24189ce

                                          SHA1

                                          97d170e1550eee4afc0af065b78cda302a97674c

                                          SHA256

                                          4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                                          SHA512

                                          b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                          Filesize

                                          354B

                                          MD5

                                          59b44e8d4ffeae939e9c5ca048f43dd6

                                          SHA1

                                          a8704f32f24de763de2199b76078e7c414b05325

                                          SHA256

                                          e542acb83a99906dffd57430c695ef860a23f2a6c2acb367c76fb15c1e4de850

                                          SHA512

                                          5630f4b8bb7485d6168a77c0afccf7cf77ba01b617c206106b0fc590b38c6c1f26a04b907b301fc2e932adf2e1702b4f6e62874bfd734ff7979c48749efaf4f3

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                          Filesize

                                          5KB

                                          MD5

                                          7bd20e2b5fddb623430f8368e12bce9d

                                          SHA1

                                          d07c328bbf5c5cbaccbde9483a33a00707ba4809

                                          SHA256

                                          a8bcec5656d8cb717a999831d217cada8f998ba11327bde9e22f9cbc39326832

                                          SHA512

                                          c937c55d795e91a73fc3303452fbfff86e0a9b39ec48161a72017f21c5b5cf288c574e62560cb01b12b294d98829ff22b39d1808f9c706d547dac915a7d9d853

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences~RFe577bb8.TMP
                                          Filesize

                                          2KB

                                          MD5

                                          1d0245a0816fd932b1963600bab98460

                                          SHA1

                                          82d188a3a5fd107ed83000e16e41e0d67eed941b

                                          SHA256

                                          b9d8f68c1f5aeadb1748f8efa21c33a4235cca822bfdf19951d296b2f29944f6

                                          SHA512

                                          febc999100ab08b73d52fa2a08f7c09cf2281c420762d121150da6cecc922372a9591619163881a5d2956cc20a7bd6d1b5017b6f0575b55ca6baeeaa604632f6

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                          Filesize

                                          16KB

                                          MD5

                                          72de610b3bb20c5b8bf1541c99cc8b7e

                                          SHA1

                                          5c3900174cafd2ba2a06f0aa1cd6c5548c6f3831

                                          SHA256

                                          fd38d2b3430bf1f65f3bb5cbf5c457901e341b705fdf67f8a525039a40389d7c

                                          SHA512

                                          7965f5627ad060008402f72278fbd637afd2ba2c396217e13a719849c22377aa7f7976718f1b92aab98ba7f1d92e8461fff6220eb7d4911c3faf4bd0f5af45a5

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                          Filesize

                                          260KB

                                          MD5

                                          cb5b87bbe35359cef126697f5c1f56fb

                                          SHA1

                                          c9eea80752197ae246c95e8afd56c8c95ddad551

                                          SHA256

                                          61c9c08a491ed1c59a445c8d541a835a4bf19695769d8f470a7d3612ba74c571

                                          SHA512

                                          2a6f3b64ab836d6d760c2a1aeef84e9ba68cb76cf23d2be9066f8ea58372f3e7b75c252f77d4c4b250be5ff6a7cc78b18e26d37945b18df788329d7a5544c0dc

                                        • C:\Users\Admin\AppData\Local\Temp\chrome_installer.log
                                          Filesize

                                          7KB

                                          MD5

                                          f23bbc66ef6a076b926dbb89f4b9a796

                                          SHA1

                                          432ca1de5ce4f634d7fefc0a9ed4bebbc2e89fd3

                                          SHA256

                                          e15292440a66cd3068ba94c456fa15cec4eae89c6fe954d4a9694d0835092f02

                                          SHA512

                                          f6a2e5ad2e00799322c979f92c3a3ffa932fe58afe68ef4f8f70a37d17fd27b20bceeb31c0d077a3904a2f04ba39a74931d1456f57f4919d23ccb8533151b7c7

                                        • C:\Users\Admin\AppData\Local\Temp\chrome_installer.log
                                          Filesize

                                          8KB

                                          MD5

                                          bd70f0c0a15a038ea66d831b21bbaff9

                                          SHA1

                                          c04dfe066fe0c3ec8d91b2f814ec83e92a6683e7

                                          SHA256

                                          579dd7f202613e658dc6dffd4a720426d96560a0d9274f32ef3912df476caf27

                                          SHA512

                                          fa06390c141c19d44654009c410186d34f7679e829cd6563d88080deb5047f2d93567197c5223a140524644a025b3a39bbc5c225e42f67001b4783fd67bbb3de

                                        • C:\Windows\TEMP\Crashpad\settings.dat
                                          Filesize

                                          40B

                                          MD5

                                          dd7a044bb22136e85285d21163fdef66

                                          SHA1

                                          1fcea0d904998de1bdea9cfa654a50c20b3dcc5b

                                          SHA256

                                          b918a44d48859b4ed705a9a7a23d4a816a368aa2161ad495a7a6d1c6992b61a0

                                          SHA512

                                          67afbad0468b8d5b405186c63a0960f5fcda15b2ab73767c292863e221265758001b2e110a3296f5d2ba1463863d556a535850a65a107344ade40a79c33bf358

                                        • \??\pipe\crashpad_1960_SPNSFZMVJIFGCVRY
                                          MD5

                                          d41d8cd98f00b204e9800998ecf8427e

                                          SHA1

                                          da39a3ee5e6b4b0d3255bfef95601890afd80709

                                          SHA256

                                          e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                          SHA512

                                          cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e