Analysis

  • max time kernel
    109s
  • max time network
    114s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    05-10-2023 02:50

General

  • Target

    http://architect9.in/.well-known/ITR.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 35 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://architect9.in/.well-known/ITR.htm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:3768
    • 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=0xcc,0xd0,0xd4,0xa8,0xd8,0x7fffc0a59758,0x7fffc0a59768,0x7fffc0a59778
      2⤵
        PID:4716
      • 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=1836 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:8
        2⤵
          PID:4832
        • 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=1576 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:2
          2⤵
            PID:1584
          • 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=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2656 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:1
            2⤵
              PID:1968
            • 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=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2664 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:1
              2⤵
                PID:4864
              • 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=2112 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:8
                2⤵
                  PID:3528
                • 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=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=3952 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:1
                  2⤵
                    PID:4876
                  • 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=4764 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:8
                    2⤵
                      PID:4156
                    • 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=3012 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:8
                      2⤵
                        PID:4564
                      • 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=4984 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:8
                        2⤵
                          PID:3056
                        • 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=5208 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:8
                          2⤵
                            PID:4448
                          • 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=5196 --field-trial-handle=1784,i,7897843110392171932,12379714142073890748,131072 /prefetch:8
                            2⤵
                              PID:4344
                          • 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:4020
                            • C:\Windows\System32\rundll32.exe
                              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                              1⤵
                                PID:4928
                              • C:\Users\Admin\AppData\Local\Temp\Temp1_E-FILLING FORM.zip\E-FILLING FORM.bat
                                "C:\Users\Admin\AppData\Local\Temp\Temp1_E-FILLING FORM.zip\E-FILLING FORM.bat"
                                1⤵
                                • Drops startup file
                                • Suspicious use of SetWindowsHookEx
                                PID:700
                                • C:\Windows\SysWOW64\cmd.exe
                                  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                  2⤵
                                    PID:5028
                                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\augkgsfk.exe
                                    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\augkgsfk.exe"
                                    2⤵
                                    • Executes dropped EXE
                                    • Suspicious use of SetWindowsHookEx
                                    PID:1036
                                • C:\Users\Admin\AppData\Local\Temp\Temp1_E-FILLING FORM.zip\E-FILLING FORM.bat
                                  "C:\Users\Admin\AppData\Local\Temp\Temp1_E-FILLING FORM.zip\E-FILLING FORM.bat"
                                  1⤵
                                  • Drops startup file
                                  • Suspicious use of SetWindowsHookEx
                                  PID:2680
                                  • C:\Windows\SysWOW64\cmd.exe
                                    cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                    2⤵
                                      PID:3884
                                    • C:\Windows\SysWOW64\taskkill.exe
                                      taskkill /im augkgsfk.exe /f
                                      2⤵
                                      • Kills process with taskkill
                                      • Suspicious use of AdjustPrivilegeToken
                                      PID:1840
                                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\augkgsfk.exe
                                      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\augkgsfk.exe"
                                      2⤵
                                      • Executes dropped EXE
                                      • Suspicious use of SetWindowsHookEx
                                      PID:3640

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

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                                  Downloads

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

                                    Filesize

                                    1KB

                                    MD5

                                    956bc87a5186f995397a4247e52bb3b2

                                    SHA1

                                    c911ff96e47db6ea8ba7db537ab20ce66a167bd3

                                    SHA256

                                    46783460bc2480a0b2260a5888cae01a8ac98bb5f5625a62dc424448cb48777b

                                    SHA512

                                    b3a264b5bb562d77cba44eccd54eb73477e839da4337ad1ba6bc3d6a28e4908c1c2f2414c9fe4447f6d2ba1fbdceaa0c627786efa18bb7d4eaf3401735680240

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

                                    Filesize

                                    703B

                                    MD5

                                    b7893aac3abf969559f563acea1725de

                                    SHA1

                                    46b51f0d9fb53f5f414f9288d672fd350f6dd08d

                                    SHA256

                                    8ef0ab12c99eea036fc9bb14e50fb2e07af85d42af12ad4f8917bd403fe1535d

                                    SHA512

                                    85527847bfdf7eba93776fa3ee61604251c3b6b52635e8aa6afcd6cecdddb3c0e5c291f5dc8380c59152293305f8b3423231e5392fb4a4bfc2142631ca6c88ce

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

                                    Filesize

                                    6KB

                                    MD5

                                    d68c302af4214915477e89c7155c47e4

                                    SHA1

                                    6aba330510006b614626e26deaa483636392615a

                                    SHA256

                                    fc6a853aba8c30977c29a24918e6dde352ec0568ed623896fe17ad400f1c1af6

                                    SHA512

                                    0324eeb537da00190e89d3a08be55b73436f70b7ac8baa1aed9424a9fc73afc8102f2cb2676979a8799a6becb70d694a19df28af70e8bfe38f656fcc0014e149

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

                                    Filesize

                                    6KB

                                    MD5

                                    f13317bd9b6e9a02c623611d8fdd4ff1

                                    SHA1

                                    c57fe2a139528c1e5ce60abd27bcfedb747da0bb

                                    SHA256

                                    acc382ced72e4cd402aca3d1f7b4342e22c708ead6dd9071ddd55f20ac7c1d2c

                                    SHA512

                                    7510ed159e724749a05a31ed7efa027ed480581f91f74b3d6d6af1a63837a9bbaf1da1cc7ab2ae37249f46c4a3425afca0c8edd39d9389c01f6f49abf6a3e931

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

                                    Filesize

                                    5KB

                                    MD5

                                    0804750d23be447c0560136a78ea437c

                                    SHA1

                                    e0f5605b8ee4fab0f82152448a3644bb0859b0e1

                                    SHA256

                                    43ab0bead24ecd1a68a59ed5a30299501555afbd60048a56bf7570f5dab82b27

                                    SHA512

                                    fc2a4c67e69ee85d7bb6be62937bfe72a2d8fa3eea207d4e88430ca5933e89e45aa55704bab233d995621bcea43273785650893045df962a5c8096e795984c52

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

                                    Filesize

                                    104KB

                                    MD5

                                    7e149fa54fb8802ef317edc714d517f2

                                    SHA1

                                    8b99b330748c20f3305abfd34322e4d625a7b825

                                    SHA256

                                    977c1b808f1ed80eb40200b0f54c224141d8ea18ac81270630528619fa8fefeb

                                    SHA512

                                    2cdc78827561ff7bc337116a02aaa08adb1e4b0a75155abada19b4894f7c10742d07a5788d57becb6de59d4976a77e9746444a54c992885a48996bb674b3fb01

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

                                    Filesize

                                    128KB

                                    MD5

                                    a50a8266d308dc77fa174afb0f242926

                                    SHA1

                                    0a28a988b9406c28b48f3a212f97f52ffb67b88d

                                    SHA256

                                    d73c6f26e383c79ba79555f686e105e68666d68616ecaa9e713f9786f62a6f85

                                    SHA512

                                    250a641981bcd841b68bba22a53315c201814f1368f111a41cd6d89e2d2c74235d6dc55c4a8b08b6cafb68b063a6a9f0d8b1f8bf3071e200c74bc307ec1d9d81

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

                                    Filesize

                                    103KB

                                    MD5

                                    78ff95d3c5c1e9e2a1cb1c72563e87fe

                                    SHA1

                                    c2d8a4092ed128ce148d31f0a663773f61a1ae0f

                                    SHA256

                                    91b27c8b9ebf2516642424c986931883047922cab050e910d63ed972250fec58

                                    SHA512

                                    2ee0b614967c4e280c981cf42f7c2adfb512c20550b068d5cddf0268bc6ef29911ef43e6370db112665dfeea835575f6e5da4291739abf1cbbde0587f4b4ab5e

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

                                    Filesize

                                    103KB

                                    MD5

                                    299d62f2384dc5e09adc09a1e7202510

                                    SHA1

                                    2e422dc2c073e7e39a62a1dbc174235c28563bc9

                                    SHA256

                                    9bd3a142ea8e0472f17b9ac0368a062d96613479be727209ccd54ff9d424c761

                                    SHA512

                                    ac1207177f765c7c87091ad564b0dd85762c6ce197aa5b830bbd63cb3588feb1f8d677502f8d439db2bf62055e29c12af1ef8bb9e6e03284189f692f9e73838e

                                  • 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\augkgsfk.exe

                                    Filesize

                                    2.6MB

                                    MD5

                                    838e596edc2b94701ce52ab9950b49db

                                    SHA1

                                    3fc3b85dffd9f1bf945dc90d1d42eac050862f8a

                                    SHA256

                                    212cc3e6d8c896b268c63ffcc29d19a2c64cba6dcd0a268a2f5dfd1788a069e7

                                    SHA512

                                    9ce3865af9450504c6601c1323b185b53a30cbc07de0e2d73106f64b8a217552679ea91faa3ef0c56a726329109d0a55fe4af89fbc69ea2205cc4a9184a75f1c

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

                                    Filesize

                                    2.6MB

                                    MD5

                                    838e596edc2b94701ce52ab9950b49db

                                    SHA1

                                    3fc3b85dffd9f1bf945dc90d1d42eac050862f8a

                                    SHA256

                                    212cc3e6d8c896b268c63ffcc29d19a2c64cba6dcd0a268a2f5dfd1788a069e7

                                    SHA512

                                    9ce3865af9450504c6601c1323b185b53a30cbc07de0e2d73106f64b8a217552679ea91faa3ef0c56a726329109d0a55fe4af89fbc69ea2205cc4a9184a75f1c

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

                                    Filesize

                                    2.6MB

                                    MD5

                                    838e596edc2b94701ce52ab9950b49db

                                    SHA1

                                    3fc3b85dffd9f1bf945dc90d1d42eac050862f8a

                                    SHA256

                                    212cc3e6d8c896b268c63ffcc29d19a2c64cba6dcd0a268a2f5dfd1788a069e7

                                    SHA512

                                    9ce3865af9450504c6601c1323b185b53a30cbc07de0e2d73106f64b8a217552679ea91faa3ef0c56a726329109d0a55fe4af89fbc69ea2205cc4a9184a75f1c

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

                                    Filesize

                                    2.6MB

                                    MD5

                                    838e596edc2b94701ce52ab9950b49db

                                    SHA1

                                    3fc3b85dffd9f1bf945dc90d1d42eac050862f8a

                                    SHA256

                                    212cc3e6d8c896b268c63ffcc29d19a2c64cba6dcd0a268a2f5dfd1788a069e7

                                    SHA512

                                    9ce3865af9450504c6601c1323b185b53a30cbc07de0e2d73106f64b8a217552679ea91faa3ef0c56a726329109d0a55fe4af89fbc69ea2205cc4a9184a75f1c

                                  • C:\Users\Admin\Downloads\E-FILLING FORM.zip.crdownload

                                    Filesize

                                    2.1MB

                                    MD5

                                    6979a716fc32dd0958278b769a0dd06c

                                    SHA1

                                    496b631b8518532d786742211c9ea5fa306d8e27

                                    SHA256

                                    ac0c628c6c9a3ab273d1db6bfeb9e565c8515156ff7070df1c73e590ccaac839

                                    SHA512

                                    eb7b2b9f98247f1af038147f36c478fe64d0ceae80e48778a16561ed56b66a442bfcdf8518eb3adeef3c147e5b1e850e6cd77b3ea9f0117bd7d0fce875cce396