Analysis

  • max time kernel
    87s
  • max time network
    90s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-07-2023 04:12

General

  • Target

    http://trendsaajkal.com/wp-includes/images/wuay

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 2 IoCs
  • Executes dropped EXE 1 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
  • 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 33 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 6 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    "C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" http://trendsaajkal.com/wp-includes/images/wuay
    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:420
    • 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,0x100,0x104,0xd8,0x108,0x7ff94ea49758,0x7ff94ea49768,0x7ff94ea49778
      2⤵
        PID:5044
      • 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=1684 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:2
        2⤵
          PID:4772
        • 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=2036 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:8
          2⤵
            PID:1492
          • 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=2228 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:8
            2⤵
              PID:3476
            • 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=2712 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:1
              2⤵
                PID:2432
              • 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=2720 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:1
                2⤵
                  PID:412
                • 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=3024 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:1
                  2⤵
                    PID:4652
                  • 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=5276 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:8
                    2⤵
                      PID:2352
                    • 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=5460 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:8
                      2⤵
                        PID:2392
                      • 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=5072 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:8
                        2⤵
                          PID:1540
                        • 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=5372 --field-trial-handle=1888,i,12620683750200832450,8890422598906705446,131072 /prefetch:8
                          2⤵
                            PID:1524
                        • 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:1916
                          • C:\Windows\System32\rundll32.exe
                            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                            1⤵
                              PID:444
                            • C:\Users\Admin\Downloads\ePayment_Credit\ePayment_Credit.bat
                              "C:\Users\Admin\Downloads\ePayment_Credit\ePayment_Credit.bat"
                              1⤵
                              • Drops startup file
                              • Suspicious use of SetWindowsHookEx
                              PID:2612
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                2⤵
                                  PID:4400
                                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xigoxbfk.exe
                                  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xigoxbfk.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Suspicious use of SetWindowsHookEx
                                  PID:3700

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\4f9641b5-ac2a-4ec2-857e-708d8d216b37.tmp

                                Filesize

                                1KB

                                MD5

                                298553a0980133f591085180585b6eba

                                SHA1

                                7a1682e0ef5e931282e50930e2942a623a97ddbf

                                SHA256

                                86bccf931fe3b782744857c49fc643ce18f4f146874b6cf909a376228adea08e

                                SHA512

                                93d588493f5cd07011a7dc83162dc83e78fc7aa782ab940d009c95b54280f66887743c9191dfbc09d76a01b3119b27927303f5bc671a97a5e111cd623cfe8d03

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

                                Filesize

                                705B

                                MD5

                                0feaaf7e8531a63051857b502b656239

                                SHA1

                                81e2c32b9b8b64b01101a6cd3a28b545f6f4c4aa

                                SHA256

                                4dc3704dc00e46613aa84a4de8dd350c214061db141e9700d10879e2cc3dc8ef

                                SHA512

                                f791e9d09f66abe2593f908c6a660f3ab8fde5e6d7ccafd3159272bdbdc843379e0c4f63945b0767459dfc7675565481d0d9dc6497a9e7e1a4fc2780a01e84d5

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

                                Filesize

                                6KB

                                MD5

                                dd396a2d4b53165efd0f1778ba3c9b2b

                                SHA1

                                bfd54848525e6149301d2e8fbd8dfdb811b01d55

                                SHA256

                                50f26dfcbc15f09daff75f784aff2523e9c87b2905ba784669a3cb568ee40e5b

                                SHA512

                                eb72fabfb520358c164c58a4749ba0760042a628836b32d5dca4b103f402f452a6157ea72e2d36852520443ab2122816158b2e1190de1e61f94d5171c63742a5

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

                                Filesize

                                15KB

                                MD5

                                7eff080185899314f394e88a53f4921e

                                SHA1

                                a0488b205cfafc28779e6a026ec7914ca17ca976

                                SHA256

                                4820aed94c87bf47969eb1a4328a33d0286162e39f9464a2c3255c88ae9fb037

                                SHA512

                                e462739ca54d1622b9d327f5eb984d7240ba714aa6a49f76e22d81569b640632332271f4137062175d6bd937bb5f9103c335c4236d89e5792819e7b11f5ca001

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

                                Filesize

                                173KB

                                MD5

                                7b2a66661ecc820415f13efdab89f96d

                                SHA1

                                68c449f0ccb9b23c9c91c6fbc3525f16ccdf1db5

                                SHA256

                                6ece141279cd2a44be5cac4c10dec044c527d191f5141b5e18e6df1d13716a13

                                SHA512

                                ab85ac352a3f8288becc245a82e5a71c462efa8755a8ce7688308aac980728a238ffa61c2848bea19733a606c48b8a3bdd36401b28e7c1c94be09cc8988ffd79

                              • 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\xigoxbfk.exe

                                Filesize

                                456KB

                                MD5

                                72bf294c8d6149dd8c0f2e21c18633b9

                                SHA1

                                f5a684be69f52504380be717a2c8d7b38e132199

                                SHA256

                                9ee64b15b7acf67c7f2a5a88971c2665d960876dd17323dc3425d5daf52c3d88

                                SHA512

                                581316006cf3f1e2fa10e1ac83c0f39433ae4e93a1945c53b03e14351fd6451648f004008f6bde3dc53f955e873b46efda22a66348870fab63f0da6f337a9350

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

                                Filesize

                                456KB

                                MD5

                                72bf294c8d6149dd8c0f2e21c18633b9

                                SHA1

                                f5a684be69f52504380be717a2c8d7b38e132199

                                SHA256

                                9ee64b15b7acf67c7f2a5a88971c2665d960876dd17323dc3425d5daf52c3d88

                                SHA512

                                581316006cf3f1e2fa10e1ac83c0f39433ae4e93a1945c53b03e14351fd6451648f004008f6bde3dc53f955e873b46efda22a66348870fab63f0da6f337a9350