Resubmissions

30-11-2023 09:42

231130-lpvqbaad4s 10

30-11-2023 09:21

231130-lbg73aaa85 10

Analysis

  • max time kernel
    93s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2023 09:42

General

  • Target

    http://doctor-fateev.ru/NEFT%20RECEIPT.zip

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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 36 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://doctor-fateev.ru/NEFT%20RECEIPT.zip
    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:888
    • 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,0x100,0x104,0xd8,0x108,0x7ffdae889758,0x7ffdae889768,0x7ffdae889778
      2⤵
        PID:2488
      • 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=1724 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:2
        2⤵
          PID:2980
        • 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=2136 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:8
          2⤵
            PID:4724
          • 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=2224 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:8
            2⤵
              PID:2712
            • 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=2944 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:1
              2⤵
                PID:3964
              • 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=2936 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:1
                2⤵
                  PID:4544
                • 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=5188 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:8
                  2⤵
                    PID:5000
                  • 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=5164 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:8
                    2⤵
                      PID:2696
                    • 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=5312 --field-trial-handle=1876,i,15028720852974585422,15417051297926379084,131072 /prefetch:8
                      2⤵
                        PID:3752
                    • 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:4984
                      • C:\Windows\System32\rundll32.exe
                        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                        1⤵
                          PID:5048
                        • C:\Program Files\7-Zip\7zG.exe
                          "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\NEFT RECEIPT\" -spe -an -ai#7zMap22716:86:7zEvent18446
                          1⤵
                          • Suspicious use of AdjustPrivilegeToken
                          • Suspicious use of FindShellTrayWindow
                          PID:3368
                        • C:\Program Files\7-Zip\7zG.exe
                          "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Downloads\NEFT RECEIPT\NEFT RECEIPT\" -spe -an -ai#7zMap14848:112:7zEvent22276
                          1⤵
                          • Suspicious use of FindShellTrayWindow
                          PID:1588
                        • C:\Windows\System32\cmd.exe
                          "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\Downloads\NEFT RECEIPT\NEFT RECEIPT\NEFT RECEIPT.bat"
                          1⤵
                            PID:3660

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

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

                            Filesize

                            1KB

                            MD5

                            a7ab23614dd38fa522c652fc8e15adec

                            SHA1

                            0210738172b7fd28b4dd31da81cc7e0a1dd8507e

                            SHA256

                            9ddc7bb1f81181d12b651f80354d4b6fe716c451a2bea3f25f816a117a72fcb4

                            SHA512

                            99e2f03d1af43e9b99377c2dbc4531e47fea5081ba7eddbef82205a01c48bea15b26c271b5e49a7bd8cb2f2ec55f4c0d25cf5ba69ef150c920f9f38d1fc20b8d

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

                            Filesize

                            6KB

                            MD5

                            01369a3d4ba57260ff79bbc93b17d51b

                            SHA1

                            83598e5702f9b1f72e8949d64ea7a6403c1871c3

                            SHA256

                            a3a5eb1bc97e60cceffcd916dd1cbee89b4edc9a8ddf99c9e03d2861c1731150

                            SHA512

                            d530d9552bdfd175a319415221737637436cfe3d1ceb78a0820949ffafe53c751a34280123e188789164f899d67a480e261b2ba646c160688830d0c3965c9488

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

                            Filesize

                            115KB

                            MD5

                            372f88339fa36939f890550f905d9f65

                            SHA1

                            c5f27d8c8bce556d190aaa957fe83bb0e309b8c2

                            SHA256

                            53158a567910009eb84eb7d02f1b61fe6f51f67e8e3b17ecb83d64ca3e79fbb9

                            SHA512

                            86d1bc6da60d8b6cc98607f5b3c1e02406fffe2a59db0bc68d4fe39528fd8dce5e67beba19eabb4ac547e6d1bbd1101ad1624c84bdaa77d304eac4a808eb4b50

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

                            Filesize

                            115KB

                            MD5

                            80d50fb282b3773e6d6bf0ad845acf33

                            SHA1

                            2024bd562bfa1b16338b1c0ebbf007ba3077a1d6

                            SHA256

                            759090c4a98cad064db8fb558c9d8f329e95f3cfad36fbfa42c425193a963c4a

                            SHA512

                            a23695dd57a2335e7880948f2c03faa046c268b04627986ed0b5fb92cd3c9e76ec64fca5fd17ed94a9a03169685ab33ab93c17bd3174c9ad1682536f7f4657b7

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ShaderCache\data_1

                            Filesize

                            264KB

                            MD5

                            a3dd7b0d489a48df2e3dc2659e4cd901

                            SHA1

                            a736186bc3e1c04d155870695b72bd933181031a

                            SHA256

                            9eee8244b4d94f96a11bc4e2987f0f66eb4d917e04ad710686d5efe6f6ee9e97

                            SHA512

                            7fd19529a717d041f513021e8827440561e1676990c5aef4f2a0acde95a3e1965e6e4e5f16149e6afbac4c84ee25a30f3a80c4c3c568f1bc6ef21b3bb9db47d2

                          • 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\NEFT RECEIPT.zip

                            Filesize

                            2.1MB

                            MD5

                            d259d10134ce1f45df757051b2b1accb

                            SHA1

                            c4c4260ae42e0522fab0d5696631fcfc0a2c665a

                            SHA256

                            3e32fbdd6075589abb8619e1b1a95058a01d62750525dae10a89ea8112e16e0b

                            SHA512

                            7c2df714593559bb417b7d95dc525ea096d8e49764ffb59b26e438ab65a3f467c8868db561100df21c0ca85a0559138ee304146bb433fd2b6d101cc7c3b1c34a

                          • C:\Users\Admin\Downloads\NEFT RECEIPT\NEFT RECEIPT.zip

                            Filesize

                            2.1MB

                            MD5

                            43bfb670cfff87ffdb8febd6da7513fb

                            SHA1

                            a232eea674cda0f71751eff2a6571a8e9602d2a7

                            SHA256

                            dec7a59afa017490684a8f597635acdbe964762612f6924bd5f2361605ada714

                            SHA512

                            2dd21b31186799592905f1371b32b0dad0f3363ed6af50895503fc30fffb0ef6541fff84782f1277bf2f3f658d180fda8376166f5c758d97557469005dc1aba7

                          • C:\Users\Admin\Downloads\NEFT RECEIPT\NEFT RECEIPT\NEFT RECEIPT.bat

                            Filesize

                            2.4MB

                            MD5

                            5ee81a84ebf389055aa233770b09a710

                            SHA1

                            45fe4367dd86f888a70e0c82b899a6602596bfff

                            SHA256

                            0ee72014a5767e3f99297e27fb4cd66fd8cbdf8577e494e9eb6aea61d4194626

                            SHA512

                            9208ea252f5d899fb7337052892175241bb2fa9c4943113f6731cccabb2a36dd94a44299b2e207fa760df303b53171af309a7c00580bfa0b7f67896054eb54f8

                          • \??\pipe\crashpad_888_DIVHDQTERPRCRIGN

                            MD5

                            d41d8cd98f00b204e9800998ecf8427e

                            SHA1

                            da39a3ee5e6b4b0d3255bfef95601890afd80709

                            SHA256

                            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                            SHA512

                            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e