Analysis

  • max time kernel
    69s
  • max time network
    70s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-07-2023 10:11

General

  • Target

    http://bhagwatijobs.in/VISITOR.htm

Malware Config

Extracted

Family

kutaki

C2

http://treysbeatend.com/laptop/squared.php

http://terebinnahicc.club/sec/kool.txt

Signatures

  • Kutaki

    Information stealer and keylogger that hides inside legitimate Visual Basic applications.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 37 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" http://bhagwatijobs.in/VISITOR.htm
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4860
    • 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=106.0.5249.119 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7fffe44c9758,0x7fffe44c9768,0x7fffe44c9778
      2⤵
        PID:4204
      • 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=1652 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:2
        2⤵
          PID:4344
        • 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=2140 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:8
          2⤵
            PID:4268
          • 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=utility --mojo-platform-channel-handle=2252 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:8
            2⤵
              PID:3996
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2948 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:1
              2⤵
                PID:3884
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2940 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:1
                2⤵
                  PID:4908
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4536 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:1
                  2⤵
                    PID:2192
                  • 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=5208 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:8
                    2⤵
                      PID:4212
                    • 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=5616 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:8
                      2⤵
                        PID:392
                      • 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=5212 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:8
                        2⤵
                          PID:408
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3124 --field-trial-handle=1648,i,11929271747673387038,1365957374759403778,131072 /prefetch:8
                          2⤵
                            PID:3772
                        • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                          "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                          1⤵
                            PID:4512
                          • C:\Windows\System32\rundll32.exe
                            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                            1⤵
                              PID:1500
                            • C:\Program Files\7-Zip\7zG.exe
                              "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\WESTERN\" -spe -an -ai#7zMap14113:76:7zEvent20671
                              1⤵
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of FindShellTrayWindow
                              PID:2052
                            • C:\Program Files\7-Zip\7zG.exe
                              "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\WESTERN\WESTERN\" -spe -an -ai#7zMap12878:92:7zEvent31028
                              1⤵
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of FindShellTrayWindow
                              PID:440
                            • C:\Windows\System32\cmd.exe
                              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\Downloads\WESTERN\WESTERN\WESTERN.cmd"
                              1⤵
                                PID:4064

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

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

                                Filesize

                                6KB

                                MD5

                                508cd9971c5c1e66659a3259091cb1c4

                                SHA1

                                54e5dacc834ba0d298796aa502b952786754e4eb

                                SHA256

                                23a3611a4d4e3a773818e63672b6029a85140f562d57f3e37021b2213386b3b2

                                SHA512

                                d3167aaf3c202647e461ff76c2a2fd46549280839135652d47b9ef63275d613b9a9b6645e557c1f9e3e8b2b8f7416d056b90b3ee02c2c15806c42368d9dd09c7

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

                                Filesize

                                15KB

                                MD5

                                662df84828f8bf0498d5a57c33dc3c04

                                SHA1

                                733a8dc6dbb97b33c1e008e1b7d0c8310c67b935

                                SHA256

                                d76c85112c23d3f238f88db90ec4d954f09287c654476fa33440f20f16e03817

                                SHA512

                                ee2e33b73101849619b0d072f7d77e04c082dbfde79dd2ae0bf148e1de79a1c36434ec78eeeed698028ba6b29b5b9593754bc194ae3685e9834fc9aa0790401e

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

                                Filesize

                                172KB

                                MD5

                                7f08e8777185344d7dbd8f61a095d9c6

                                SHA1

                                02f51c7b3d803b7906bc11ae88845078c05bf586

                                SHA256

                                2ab329935649b3d2fce5e872408f8ebb9996ff89adb247866aa6cc90af08cde0

                                SHA512

                                fc7b96c9bdd4e0677389bd04491f47ced4682b33e93b2e6d95fdb80fba6aa69d323ea41cfef4ac0a7329055720ed35e268dbc664f4ddd270c0c5c66b2f77cc5d

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

                                Filesize

                                2B

                                MD5

                                99914b932bd37a50b983c5e7c90ae93b

                                SHA1

                                bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                                SHA256

                                44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                                SHA512

                                27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

                              • C:\Users\Admin\Downloads\WESTERN.zip

                                Filesize

                                2.1MB

                                MD5

                                b8ae580296be935fe8ee8e41a59335aa

                                SHA1

                                1f6dfb78f2a2b76174f9ce7b30d1f4e31611a84e

                                SHA256

                                b76080d069eb6c4f941b61154852d2000dd53db0f120827b81643f0dd9480c4e

                                SHA512

                                771123766fa2d893ca0ba1a03a358c17172f21181e1043698ed68789bfb370b18bddf457605947b7296c4d56ab6b89709a4fff47fba66034d19b4e603935889b

                              • C:\Users\Admin\Downloads\WESTERN\WESTERN.zip

                                Filesize

                                2.1MB

                                MD5

                                8ddc595aff7ae14e5463f4b3b1c242e3

                                SHA1

                                a741e466ed3f30cf69da87002c89f1ea47c5eba1

                                SHA256

                                d6acf9ddac80e7a172ba6572365ed329ad5d831ac6ad8a47e8297706869b96a9

                                SHA512

                                f8f9513185b6a0615054d0060928ea12cfc2e916b7a82eda74e283a67b563aac39eb293a7d453410d859fc0110e635e77359e87a5066f08eb88bd827ce8952ed

                              • C:\Users\Admin\Downloads\WESTERN\WESTERN\WESTERN.cmd

                                Filesize

                                2.3MB

                                MD5

                                edf847cfbfe0ba4c161c815c16a73195

                                SHA1

                                e7d8eb262eeb5a7f31bd4673d066bdf42761e90a

                                SHA256

                                3b4a299904bd4683c3043b0ca84553eb9e55d6c5450e0346f0456e3fd6bffb65

                                SHA512

                                a6aa8e181fba031d543a6125f6b9ee286a4c6c9829185b56cfeabb07103438573dab1ffe8e9afa97f7beef8a8d018239381d8daf3bf5525b2364317bdcad8884

                              • \??\pipe\crashpad_4860_XCELHVXOEMHCRCFX

                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e