Analysis

  • max time kernel
    300s
  • max time network
    271s
  • 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 04:42

General

  • Target

    VISITOR.htm

  • Size

    205B

  • MD5

    0d9e328d36728020df58014634db4fa1

  • SHA1

    4468af9b6ea60b08abfc1d7fa7bd575c98dde46d

  • SHA256

    f35a17872d4cfcdf2e425e1552bcfe20389232d58157b117185c2ee810d4aa00

  • SHA512

    05a5a82ad73e0bd2d7c23a943c9ec936e500c96fe0d6ec5008276cf5cafc73e8b79bbaed5f99362a3827168d196faf90ef7a4d0b1dec7264c5f14fefb7397adb

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 6 IoCs
  • Executes dropped EXE 3 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 2 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 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 22 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    "C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" C:\Users\Admin\AppData\Local\Temp\VISITOR.htm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:1740
    • 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,0x100,0x104,0xd8,0x108,0x7ff9b73c9758,0x7ff9b73c9768,0x7ff9b73c9778
      2⤵
        PID:1516
      • 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=1800 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:2
        2⤵
          PID:3128
        • 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=2208 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:8
          2⤵
            PID:2164
          • 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=2156 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:8
            2⤵
              PID:4988
            • 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=3076 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:1
              2⤵
                PID:3420
              • 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=3068 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:1
                2⤵
                  PID:3836
                • 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=4004 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:1
                  2⤵
                    PID:4868
                  • 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=5196 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:8
                    2⤵
                      PID:1644
                    • 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=5380 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:8
                      2⤵
                        PID:3796
                      • 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=5700 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:8
                        2⤵
                          PID:3676
                        • 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=3116 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:8
                          2⤵
                            PID:2784
                          • 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=4976 --field-trial-handle=1888,i,14844601214078343937,17408604318705232355,131072 /prefetch:2
                            2⤵
                            • Suspicious behavior: EnumeratesProcesses
                            PID:3256
                        • 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:3916
                          • C:\Windows\System32\rundll32.exe
                            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                            1⤵
                              PID:368
                            • C:\Users\Admin\AppData\Local\Temp\Temp2_GETTING UP.zip\GETTING UP.cmd
                              "C:\Users\Admin\AppData\Local\Temp\Temp2_GETTING UP.zip\GETTING UP.cmd"
                              1⤵
                              • Drops startup file
                              • Suspicious use of SetWindowsHookEx
                              PID:1052
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                2⤵
                                  PID:2276
                                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\piimdofk.exe
                                  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\piimdofk.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Suspicious use of SetWindowsHookEx
                                  PID:2256
                              • C:\Users\Admin\AppData\Local\Temp\Temp2_GETTING UP.zip\GETTING UP.cmd
                                "C:\Users\Admin\AppData\Local\Temp\Temp2_GETTING UP.zip\GETTING UP.cmd"
                                1⤵
                                • Drops startup file
                                • Suspicious use of SetWindowsHookEx
                                PID:2936
                                • C:\Windows\SysWOW64\cmd.exe
                                  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                  2⤵
                                    PID:1328
                                  • C:\Windows\SysWOW64\taskkill.exe
                                    taskkill /im piimdofk.exe /f
                                    2⤵
                                    • Kills process with taskkill
                                    PID:388
                                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\piimdofk.exe
                                    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\piimdofk.exe"
                                    2⤵
                                    • Executes dropped EXE
                                    • Suspicious use of SetWindowsHookEx
                                    PID:3480
                                • C:\Windows\system32\notepad.exe
                                  "C:\Windows\system32\notepad.exe"
                                  1⤵
                                  • Modifies registry class
                                  • Suspicious behavior: GetForegroundWindowSpam
                                  • Suspicious use of FindShellTrayWindow
                                  • Suspicious use of SetWindowsHookEx
                                  PID:3828
                                • C:\Users\Admin\Downloads\GETTING UP\GETTING UP\GETTING UP.cmd
                                  "C:\Users\Admin\Downloads\GETTING UP\GETTING UP\GETTING UP.cmd"
                                  1⤵
                                  • Drops startup file
                                  • Suspicious use of SetWindowsHookEx
                                  PID:1208
                                  • C:\Windows\SysWOW64\cmd.exe
                                    cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                    2⤵
                                      PID:3468
                                    • C:\Windows\SysWOW64\taskkill.exe
                                      taskkill /im piimdofk.exe /f
                                      2⤵
                                      • Kills process with taskkill
                                      PID:3836
                                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ngqdklfk.exe
                                      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ngqdklfk.exe"
                                      2⤵
                                      • Executes dropped EXE
                                      • Suspicious use of SetWindowsHookEx
                                      PID:3288

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

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

                                    Filesize

                                    1KB

                                    MD5

                                    f980038b901158fb89a09ff7999a927b

                                    SHA1

                                    948da440674efdd4b3a76e6261ff56794d5af360

                                    SHA256

                                    dbbe33420e9e45f07f1f9b0300d35006a22612bc5fc14abc3eda2b98c2b533f9

                                    SHA512

                                    a7a8f840a00280fa3ccff6a960b21f9693d6b9cbfa20e1ce06c172a98acd2e8f2bcff758f6b044c396569c5d5f6f48ac248bedc6e1d9fa6d8d49293736cccab2

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

                                    Filesize

                                    6KB

                                    MD5

                                    6bae50f2a49a2c81813d6a6bd5c43ffe

                                    SHA1

                                    7ecebcdca29d7ba939c098ece7ffcf79f854919e

                                    SHA256

                                    85609a1e0a884c7fe54ff938989ab2777401958a33299ce61a5d9ae1023dca8c

                                    SHA512

                                    b751d7d8fa2e4a1fbf7cbe749d958e626fb520bebf7ef01f01e1650313ecbf0b88f51ac092f4d890bc769d23eae23357f92f4e8eeb1ef9189c2019581b05c392

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

                                    Filesize

                                    15KB

                                    MD5

                                    42a0e8ea8be6ac7bc111458488456a6f

                                    SHA1

                                    16ae29972ab1d02d174f562daa20e6d7ad008cd0

                                    SHA256

                                    38fc2438a377004ce54c22b6b9797ba32b2dbb084426ee3bea9f2dd4a597a819

                                    SHA512

                                    5993065b2431445cc950bd118a83d6472982c480b1d462810d3211597283ed2609bb3e38c6cda4e147216f3b2c2ebee77b1ea89cc19b4d183d20b27d96c2925b

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

                                    Filesize

                                    110KB

                                    MD5

                                    3d3d9b32765340f002447200633f7ce4

                                    SHA1

                                    f1c0a085d5e9d20cda606d21abd3ea7d50876536

                                    SHA256

                                    9df8190e532eaa5adf0870589b752c00caf51de8f42d58a16f4b1f4f94fde814

                                    SHA512

                                    7392f8a534e2ae9272ca3b486fcc402162ef0399afac68088baf98f4c5d1232de9ea8b99440b9a79392f995c985da036cc9842bf72a9dfb62d3083de21698c80

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache~RFe57d61c.TMP

                                    Filesize

                                    106KB

                                    MD5

                                    503c1fe4f5b6f80594cb041f4946653c

                                    SHA1

                                    2893c2999761e7d9080831b94484d651f47f566e

                                    SHA256

                                    0ea289c4ae6f49e7e742a9bdca34575343975a397bd52f596cd2e05c217d42ff

                                    SHA512

                                    e991063fab8d3d813aafa364de405d63c662c574767b2663358195c4ea212b8600cb5e45c45bae666a7f2c34b3aab7d1760fb019675b6bbbf8dfd251865556d5

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\fb9f4894-6964-49af-a431-4a75e503e1ea.tmp

                                    Filesize

                                    172KB

                                    MD5

                                    fd3772b7879dd665ac87d80aeaf9798e

                                    SHA1

                                    d3a1fa2c30d6789683a717aeb0a7a2120a809124

                                    SHA256

                                    57a78057361ddc3ebbb6cad19071b00267079acbbc9881ac60c32b871c5ee0a6

                                    SHA512

                                    ee22f5582a53def9f0c54a5d84cc1c62d2c84030d7b589244090667dcc3d9461d5ef06ae8784f79cea9d5b1635da4f212ac3a4fac9242a613e2ff68995fc3e2b

                                  • 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\ngqdklfk.exe

                                    Filesize

                                    2.3MB

                                    MD5

                                    b9c876b131b9916df5a95e017e276fbf

                                    SHA1

                                    5026ca0ba6b4301cf0353e737f60cac921c5190f

                                    SHA256

                                    73077188c541952e4cee319a28243793d2bad1d8f1669e5d744bb55733a1ef31

                                    SHA512

                                    88c33d30c445ac218bffdd8e282a8d04685dade95ab2c912f41b6c41b97ef308e2efa4fd17d257946b824d3bb510432f0553765abdb57b07d716d6dc29c9db7c

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

                                    Filesize

                                    2.3MB

                                    MD5

                                    b9c876b131b9916df5a95e017e276fbf

                                    SHA1

                                    5026ca0ba6b4301cf0353e737f60cac921c5190f

                                    SHA256

                                    73077188c541952e4cee319a28243793d2bad1d8f1669e5d744bb55733a1ef31

                                    SHA512

                                    88c33d30c445ac218bffdd8e282a8d04685dade95ab2c912f41b6c41b97ef308e2efa4fd17d257946b824d3bb510432f0553765abdb57b07d716d6dc29c9db7c

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

                                    Filesize

                                    2.3MB

                                    MD5

                                    b9c876b131b9916df5a95e017e276fbf

                                    SHA1

                                    5026ca0ba6b4301cf0353e737f60cac921c5190f

                                    SHA256

                                    73077188c541952e4cee319a28243793d2bad1d8f1669e5d744bb55733a1ef31

                                    SHA512

                                    88c33d30c445ac218bffdd8e282a8d04685dade95ab2c912f41b6c41b97ef308e2efa4fd17d257946b824d3bb510432f0553765abdb57b07d716d6dc29c9db7c

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

                                    Filesize

                                    2.3MB

                                    MD5

                                    b9c876b131b9916df5a95e017e276fbf

                                    SHA1

                                    5026ca0ba6b4301cf0353e737f60cac921c5190f

                                    SHA256

                                    73077188c541952e4cee319a28243793d2bad1d8f1669e5d744bb55733a1ef31

                                    SHA512

                                    88c33d30c445ac218bffdd8e282a8d04685dade95ab2c912f41b6c41b97ef308e2efa4fd17d257946b824d3bb510432f0553765abdb57b07d716d6dc29c9db7c

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

                                    Filesize

                                    2.3MB

                                    MD5

                                    b9c876b131b9916df5a95e017e276fbf

                                    SHA1

                                    5026ca0ba6b4301cf0353e737f60cac921c5190f

                                    SHA256

                                    73077188c541952e4cee319a28243793d2bad1d8f1669e5d744bb55733a1ef31

                                    SHA512

                                    88c33d30c445ac218bffdd8e282a8d04685dade95ab2c912f41b6c41b97ef308e2efa4fd17d257946b824d3bb510432f0553765abdb57b07d716d6dc29c9db7c

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

                                    Filesize

                                    2.3MB

                                    MD5

                                    b9c876b131b9916df5a95e017e276fbf

                                    SHA1

                                    5026ca0ba6b4301cf0353e737f60cac921c5190f

                                    SHA256

                                    73077188c541952e4cee319a28243793d2bad1d8f1669e5d744bb55733a1ef31

                                    SHA512

                                    88c33d30c445ac218bffdd8e282a8d04685dade95ab2c912f41b6c41b97ef308e2efa4fd17d257946b824d3bb510432f0553765abdb57b07d716d6dc29c9db7c

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

                                    Filesize

                                    2.3MB

                                    MD5

                                    b9c876b131b9916df5a95e017e276fbf

                                    SHA1

                                    5026ca0ba6b4301cf0353e737f60cac921c5190f

                                    SHA256

                                    73077188c541952e4cee319a28243793d2bad1d8f1669e5d744bb55733a1ef31

                                    SHA512

                                    88c33d30c445ac218bffdd8e282a8d04685dade95ab2c912f41b6c41b97ef308e2efa4fd17d257946b824d3bb510432f0553765abdb57b07d716d6dc29c9db7c

                                  • \??\pipe\crashpad_1740_OFQANJIVNIWHCZSF

                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e