Analysis

  • max time kernel
    299s
  • max time network
    260s
  • platform
    windows10-1703_x64
  • resource
    win10-20240214-en
  • resource tags

    arch:x64arch:x86image:win10-20240214-enlocale:en-usos:windows10-1703-x64system
  • submitted
    18-02-2024 22:35

General

  • Target

    https://kothariwheels.com/mmmko

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 4 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://kothariwheels.com/mmmko
    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:4148
    • 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,0xd0,0xd4,0xa8,0xd8,0x7ffc434e9758,0x7ffc434e9768,0x7ffc434e9778
      2⤵
        PID:2300
      • 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=1792 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:8
        2⤵
          PID:4656
        • 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=2072 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:8
          2⤵
            PID:1736
          • 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=1520 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:2
            2⤵
              PID:3248
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --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=2972 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:1
              2⤵
                PID:5096
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2988 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:1
                2⤵
                  PID:3320
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4400 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:1
                  2⤵
                    PID:3784
                  • 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=4932 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:8
                    2⤵
                      PID:2336
                    • 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=2912 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:8
                      2⤵
                        PID:1484
                      • 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=4972 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:8
                        2⤵
                          PID:4648
                        • 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=3688 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:8
                          2⤵
                            PID:2572
                          • 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=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.15063.0 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=4876 --field-trial-handle=1840,i,15276498362013684676,8118184248811344937,131072 /prefetch:2
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:2528
                        • 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:3560
                          • C:\Windows\System32\rundll32.exe
                            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                            1⤵
                              PID:1328
                            • C:\Users\Admin\AppData\Local\Temp\Temp1_E-Challan.zip\E-Challan.bat
                              "C:\Users\Admin\AppData\Local\Temp\Temp1_E-Challan.zip\E-Challan.bat"
                              1⤵
                              • Drops startup file
                              • Suspicious use of SetWindowsHookEx
                              PID:4400
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                2⤵
                                  PID:4504
                                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\qfqfuyfk.exe
                                  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\qfqfuyfk.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Suspicious use of SetWindowsHookEx
                                  PID:4856

                              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

                                57c699103c203619f7cff2b58ed9ba50

                                SHA1

                                38aa9a3a5730bc0b8d832c2873db566e7f3dc629

                                SHA256

                                5c24f197e35a31f1e3498bca24cb7764bb4576d6cb6d69fe935fca99686f26df

                                SHA512

                                8f6be299f16a51db1fa9b217f7850c9e35c9ad6c21bd4eb457ece06688e04ca75a638d0af62fedcedcfea0da7fce66609f77c2538e377ca11b8b5d186f03bbad

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

                                Filesize

                                701B

                                MD5

                                2f55b2590eb4877e022189ecba30def5

                                SHA1

                                313b651735f5706f77cb656fb283b04b4b37363c

                                SHA256

                                543ba9627757d8bead6cc00fd8c794988a824f676618e3098421e7f364216f4d

                                SHA512

                                c595ccae1e9e951d08d85b4288bc167133fd08ebf4424ce02084aa61f2edd0538239c85d150ec0f35b2466bc1d2e93c3797312ef2d30addf2c1350115037d6b8

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

                                Filesize

                                5KB

                                MD5

                                f94726265f8390b3b7fde863662be6ea

                                SHA1

                                6f73f298b4c3eb55d8fd55e33309bdf826405e99

                                SHA256

                                d3f66315c544cf78ffed9b73174e1b1f9f1ffa1023c80591124289ef78db0562

                                SHA512

                                29778191891d0a10b492334071bf40669ed7ccdde2ca982d97c6f41951d246c578d77331278294269b8bafb6ec1d0dda2e0136b1a36a54ee3e5c696e11b11eec

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

                                Filesize

                                6KB

                                MD5

                                fd13e2afcff039a5bad11099ccbb1afa

                                SHA1

                                5e272659b2e3ca706e4cc848a82fb83b432190bc

                                SHA256

                                9d0a12efb5228f9e8ad966866f43fb2c4b677f8e0f6b95d6a6176ec7a9766085

                                SHA512

                                535c782a6b446851b63faaff0dd57e90d5153a86941789cc834be9fd47f2460db428e2b36c3ca490d367aa05a831bec8bbdf5673b447551c799155c078871968

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

                                Filesize

                                6KB

                                MD5

                                8308130cf5400b8c60d6d8cf07da2de7

                                SHA1

                                50b70c8468cfdd457315b7f3ff6f645bb59f7ff3

                                SHA256

                                26b35c24c7bd46f0bcfd77d4a089c668c4bc530de38acc68a9702705997195a1

                                SHA512

                                74b8fcf6f2277141409f4c4f37965de8ed6d931d1bfc8a6b03d5f8f054932af0144ffa0d7d4032d7630beb54e1163e1be7c789327ca02944958a209d180279ef

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

                                Filesize

                                129KB

                                MD5

                                5c804ffd4127f466ad28fa3e1ab4383d

                                SHA1

                                642e2cee92c219f9f9b6f54e3ee11ce9901fa1c4

                                SHA256

                                20e3fb01ba2afe69526289a9e759f1bca8d926c87fd459b4e7312f6cae1dcc0f

                                SHA512

                                e08c2e80f7926b5a6528785c7f97eeef60dfe1f291634920a51c079d051996e7465869f40915f86e8099bc5755dbdfd2547b2511873718472503dc8ebf2dfe61

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache

                                Filesize

                                104KB

                                MD5

                                f4392127c76c7d468d3f6b0a1536eda6

                                SHA1

                                f59c2ed786355886bb6285c0faec29e99ea60446

                                SHA256

                                c167cb17b68c3422c5770ee0b8100625254e70f054c5630715e7353875d21006

                                SHA512

                                9540d17a2b873210f114a94409f1b317fc208f98b601e48d9871a5af5619ff2e3f9adf40221258f4e1689c8f365d8fa02ff50487ec53a63367204a9fa5d3feea

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache~RFe57d9a7.TMP

                                Filesize

                                101KB

                                MD5

                                2351b33d5f8c8c2de87b94fc7d631d3e

                                SHA1

                                126c2f0b1237d6a8bf670c29e301dae3c732e8d3

                                SHA256

                                8d6edd9a7b28daa143470c4fd843d4b97057d2f8cefa4d74dc0a18491eafa418

                                SHA512

                                3c3318608db0cde37c765b7a631470fca5e235bfe041ec13428157c606bb0ea2206d462d5758e441c83c21f494387943ef115f0e2017c6062c4c8c0676388ad3

                              • 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\qfqfuyfk.exe

                                Filesize

                                528KB

                                MD5

                                e50c1b7c8e16bd11af9ef216588e91e9

                                SHA1

                                f926e8d704ae07603d6130e5a031cebe22a521e9

                                SHA256

                                90d339caac0c827c1e6aa1cd879d067733e75d9a289bb4849c0109da902e3a6f

                                SHA512

                                21e777b821d176b55e6dad985ec0faa38c6b40c31732a14d82934f96f5369c592c88e598d341ff4958e1a517443f025038f53c7a8dc97741476fb8f37c54537e

                              • C:\Users\Admin\Downloads\E-Challan.zip

                                Filesize

                                336KB

                                MD5

                                895fdf18a0a9234c3cd5f55e88db592d

                                SHA1

                                8dcd5c85e033fc0e520b8eb8672edcfecbf9c973

                                SHA256

                                321f707f4f286a01118f8cf18a5eee397c1a446b60f1d469450dc8eb17032564

                                SHA512

                                416a06f057a0634b776b502afbbea767bd234f6566cca26a8c4cff46b681f4e17ba50ae09c35d4ff26599e6d7350231b2dbc6aa78708877c49db90371e7f0f21

                              • \??\pipe\crashpad_4148_LGNPTYUTQRKYSDCD

                                MD5

                                d41d8cd98f00b204e9800998ecf8427e

                                SHA1

                                da39a3ee5e6b4b0d3255bfef95601890afd80709

                                SHA256

                                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                SHA512

                                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e