Analysis

  • max time kernel
    600s
  • max time network
    490s
  • 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 00:47

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.

  • Drops startup file 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 1 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 34 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 12 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    "C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" http://bhagwatijobs.in/VISITOR.htm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:2060
    • 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,0x100,0x104,0xd8,0x108,0x7ffa40559758,0x7ffa40559768,0x7ffa40559778
      2⤵
        PID:4988
      • 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=1660 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:2
        2⤵
          PID:1508
        • 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=2220 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:8
          2⤵
            PID:4916
          • 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=2120 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:8
            2⤵
              PID:2624
            • 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=2996 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:1
              2⤵
                PID:3776
              • 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=3032 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:1
                2⤵
                  PID:1432
                • 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=4556 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:1
                  2⤵
                    PID:3344
                  • 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=5216 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:8
                    2⤵
                      PID:1340
                    • 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=5612 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:8
                      2⤵
                        PID:216
                      • 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=3008 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:8
                        2⤵
                          PID:3888
                        • 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=5140 --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=4952 --field-trial-handle=1892,i,10223009341188087340,791724223156033342,131072 /prefetch:2
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:5028
                      • 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:2560
                        • C:\Windows\System32\rundll32.exe
                          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                          1⤵
                            PID:380
                          • C:\Users\Admin\AppData\Local\Temp\Temp2_CLOSING UP.zip\CLOSING UP.cmd
                            "C:\Users\Admin\AppData\Local\Temp\Temp2_CLOSING UP.zip\CLOSING UP.cmd"
                            1⤵
                            • Drops startup file
                            • Suspicious use of SetWindowsHookEx
                            PID:3268
                            • C:\Windows\SysWOW64\cmd.exe
                              cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                              2⤵
                                PID:5008
                              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe
                                "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe"
                                2⤵
                                • Executes dropped EXE
                                • Suspicious use of SetWindowsHookEx
                                PID:3876
                            • C:\Users\Admin\AppData\Local\Temp\Temp2_CLOSING UP.zip\CLOSING UP.cmd
                              "C:\Users\Admin\AppData\Local\Temp\Temp2_CLOSING UP.zip\CLOSING UP.cmd"
                              1⤵
                              • Drops startup file
                              • Suspicious use of SetWindowsHookEx
                              PID:3916
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                2⤵
                                  PID:4724
                                • C:\Windows\SysWOW64\taskkill.exe
                                  taskkill /im ajgodbfk.exe /f
                                  2⤵
                                  • Kills process with taskkill
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1808
                                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe
                                  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Suspicious use of SetWindowsHookEx
                                  PID:2888

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

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                              Downloads

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

                                Filesize

                                5KB

                                MD5

                                73da152fb9bf9af2d66c66a2a08ad3d9

                                SHA1

                                f5606d4593aebadbd1fbd6b66f67dd595e490d7a

                                SHA256

                                8c0ac92ca4af10b1cde8545d5673e85a16781967ea181890feac71ea19cd7e99

                                SHA512

                                ed33d6413b50aca849f55cdab89b46705171a7b1e213d3aef55c9a09ea18dfe5b746bdf48c235559dff3eebaafc93eecd7b84aab2c14966f989734545393c0ab

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

                                Filesize

                                6KB

                                MD5

                                b14431ea312527f561f07abecf08fe2a

                                SHA1

                                9b067737b90ae1ba913f4a01fcceb8a9ad933eac

                                SHA256

                                f1955f19111b6cff07aa16935798052d1f69fd8887d0880e9b7f6c13d3d9fc67

                                SHA512

                                b4e38c9a814bffcf13191495a99eb87b6ea4c5ae6a37ee6df323714740a74bfe9792b8058c5b1f0e2937237d815995379dd73e834dec8703e3a24942483a0a7f

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

                                Filesize

                                6KB

                                MD5

                                0bcd653c600879305f3dd24ac21a4a08

                                SHA1

                                93db89a79ae0f5c822c2ca06124122003076e7d9

                                SHA256

                                dd335024a71671fe642d35e6d821081a84656f8a61439736176def7a3f87b603

                                SHA512

                                47bbaae5add8a21b523fdb2b10d4e679887acfd57cc9aba8464b31659795b485e89e1f187c325d4dcc3c0cc8ee9e3e3b4d9e137c707a4aa055e3899b3d58ae42

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

                                Filesize

                                172KB

                                MD5

                                3919ebb56a8899eec637ea7d953983e4

                                SHA1

                                e2337458baa5ba15d960c921b317c393ef3e043b

                                SHA256

                                7b96f35f483731227af6100aef3c3278d18e50d9a5def428a7ed9aa1018b85fa

                                SHA512

                                02059a4b53e71034c4548059c2096e21d8faffba1a045d42615f1e9801ab57f16c69df8306252cd69be8726406448592b654c83022c963a8d5a402d6382a05ed

                              • 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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe

                                Filesize

                                2.3MB

                                MD5

                                b0fde4f856305f4f38d1accca45f7e7f

                                SHA1

                                45c239a1f20675204988c47e5ab7f3347bd96370

                                SHA256

                                fd5b77188dba2d589addf9bd1931c71b2ff80632bc620f8d472d76827b56dc41

                                SHA512

                                b0b3715847f6dd52a54ffbe55891ea3362a252ff2db138171adf6fd69aee69227408b4b2b93ed89438df7c5844c933ea2d44122d656156c566890d821b4bab52

                              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe

                                Filesize

                                2.3MB

                                MD5

                                b0fde4f856305f4f38d1accca45f7e7f

                                SHA1

                                45c239a1f20675204988c47e5ab7f3347bd96370

                                SHA256

                                fd5b77188dba2d589addf9bd1931c71b2ff80632bc620f8d472d76827b56dc41

                                SHA512

                                b0b3715847f6dd52a54ffbe55891ea3362a252ff2db138171adf6fd69aee69227408b4b2b93ed89438df7c5844c933ea2d44122d656156c566890d821b4bab52

                              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe

                                Filesize

                                2.3MB

                                MD5

                                b0fde4f856305f4f38d1accca45f7e7f

                                SHA1

                                45c239a1f20675204988c47e5ab7f3347bd96370

                                SHA256

                                fd5b77188dba2d589addf9bd1931c71b2ff80632bc620f8d472d76827b56dc41

                                SHA512

                                b0b3715847f6dd52a54ffbe55891ea3362a252ff2db138171adf6fd69aee69227408b4b2b93ed89438df7c5844c933ea2d44122d656156c566890d821b4bab52

                              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ajgodbfk.exe

                                Filesize

                                2.3MB

                                MD5

                                b0fde4f856305f4f38d1accca45f7e7f

                                SHA1

                                45c239a1f20675204988c47e5ab7f3347bd96370

                                SHA256

                                fd5b77188dba2d589addf9bd1931c71b2ff80632bc620f8d472d76827b56dc41

                                SHA512

                                b0b3715847f6dd52a54ffbe55891ea3362a252ff2db138171adf6fd69aee69227408b4b2b93ed89438df7c5844c933ea2d44122d656156c566890d821b4bab52

                              • \??\pipe\crashpad_2060_KDQIEPYYRNFCUHVH

                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e