Analysis

  • max time kernel
    600s
  • max time network
    489s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09-10-2023 04:43

General

  • Target

    http://eekifoods.in/kkldh

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 6 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 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://eekifoods.in/kkldh
    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:4980
    • 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,0xd0,0xd4,0xa8,0xd8,0x7fff4f0e9758,0x7fff4f0e9768,0x7fff4f0e9778
      2⤵
        PID:3876
      • 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=224 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:2
        2⤵
          PID:192
        • 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=1796 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:8
          2⤵
            PID:3584
          • 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=2108 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:8
            2⤵
              PID:2136
            • 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=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:1
              2⤵
                PID:436
              • 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=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:1
                2⤵
                  PID:1488
                • 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=3916 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:1
                  2⤵
                    PID:4776
                  • 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=4996 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:8
                    2⤵
                      PID:4500
                    • 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=4876 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:8
                      2⤵
                        PID:4016
                      • 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=5216 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:8
                        2⤵
                          PID:3848
                        • 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=5328 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:8
                          2⤵
                            PID:5064
                          • 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=5240 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:8
                            2⤵
                              PID:3580
                            • 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=864 --field-trial-handle=1872,i,15551682097190842642,1562348966374966699,131072 /prefetch:2
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4480
                          • 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:4168
                            • C:\Windows\System32\rundll32.exe
                              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                              1⤵
                                PID:1268
                              • C:\Users\Admin\AppData\Local\Temp\Temp1_Inv No 47302.zip\Inv No 47302.cmd
                                "C:\Users\Admin\AppData\Local\Temp\Temp1_Inv No 47302.zip\Inv No 47302.cmd"
                                1⤵
                                • Drops startup file
                                • Suspicious use of SetWindowsHookEx
                                PID:4220
                                • C:\Windows\SysWOW64\cmd.exe
                                  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
                                  2⤵
                                    PID:1924
                                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zjmdumfk.exe
                                    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\zjmdumfk.exe"
                                    2⤵
                                    • Executes dropped EXE
                                    • Suspicious use of SetWindowsHookEx
                                    PID:936

                                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

                                  cab6dc0d185b0c90c2f4ef6bbddbc01c

                                  SHA1

                                  3aeb6f872990ade7149473e8b1f5280a221d7db0

                                  SHA256

                                  fe47663f4ff6616fd0f1a5e24e726dd4bc62ede02e609d3919db42366a171420

                                  SHA512

                                  91ef0bb9d396fc486078ca05adcb9ca9bfa6a0b1029b2865a33517c9f5e44761e8d9bea0f4564c81c268b1b2fade5cdab73cafaa7bae7e2f375d66c94790bbae

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

                                  705B

                                  MD5

                                  6d63605e027764d245912091cb854c0b

                                  SHA1

                                  22fd680d69b087a8eadfa5605fe11353569a777b

                                  SHA256

                                  590342fd45c6e778957ffd155e20c33e081a2dea335f07f4bbd2e640ad2d4354

                                  SHA512

                                  e5eb4e3990e0fb6c11497df1cfe0a5f91ec4c63ecfdebdfdc00eb3cb86702059de0e36d20a9ddecf8a051dcb39a978fdab9297073e4e83c392c6ae5b982a1872

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

                                  6KB

                                  MD5

                                  3958dafb7b744d9139cce7fd9896b91a

                                  SHA1

                                  52ec2156f912bfecf674c22fdedff504296f8055

                                  SHA256

                                  b6ee1e40ad16f76141ba85a3256e69348b137ddaa58126104ce7cb70d6b200d2

                                  SHA512

                                  6bd69f3d41afb4d4609196efdc5eac790bb553d4841c5c1fbf314a8971f06f1e509c6d72b7a4a9a8eda536edb37195048c9f121c5db7ddc77ac69ef3e0215d9f

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

                                  5KB

                                  MD5

                                  0e76b815a056759a29f8fd51c3bad3e7

                                  SHA1

                                  46dd2ec6af03fe28e1732246d4d2438453d231e9

                                  SHA256

                                  e6decb698413971acc5b06d4d722d4e45a1b97957d4dd2e71532d746053731fc

                                  SHA512

                                  ebc1345eed313e0bf7d055bd9260a0bea6ae70f330fed28b0e7da41ffc8f3f119221b11e0adae7fa43c16330eef575c1e57f7182a665044e4cb6a7e8cc19a859

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

                                  6KB

                                  MD5

                                  ed17bd1e9120b3f303a6c5c54cb5a52c

                                  SHA1

                                  cb12211b00ef9faf4d39e38ccf2b4ffc5f4b003a

                                  SHA256

                                  7fa98c6c39eb5b68745df65631bcf6db4cdb28aaf3d99abccf0421be56d81f1f

                                  SHA512

                                  a5b8ddfe6c7509f70c9694fe9c08e2dc2d00423bb0cca446bb8bdcc24d728c75b35aca4c6a8bb8188c7cc321fb3dcf68010e89ad49dbcb93c48f9789841cd1e4

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

                                  104KB

                                  MD5

                                  5b77b6733bc7038621474bb7c9801caa

                                  SHA1

                                  5d3eb81dd7d1f3f218b49e96207de181477b41a4

                                  SHA256

                                  c40ef1943231fcea566ddba0570317433cf17449540e9c2b6c9648b25cceb5ab

                                  SHA512

                                  849d8b0dcf32ef838f983b1985be372252b7de4965c6e243f4bf053ff691c372048fdc85bec8a0068b6e8c015a88bb943cc3f84fdac60a770bc9ca3c1c6aac07

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

                                  128KB

                                  MD5

                                  ef0dfe1cf81bf6a33c4a984bd9d0caf2

                                  SHA1

                                  941b421495775955dfefb82fe9fba51d1a837947

                                  SHA256

                                  a748693f56a5fbc29253c07fc9b49b8a3af6929707d15b3517d54ca74bd44fa0

                                  SHA512

                                  e896c9246b0e19aefa7ef1b497f5086a87c57547f336301245520fec653ce51c53c7ba9cfc0a58d1acf0865e087598fba9600b4cd5dbb1cd9348ec5fd3861646

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

                                  103KB

                                  MD5

                                  1a6f61c89d546d22169b5f49867d9c7c

                                  SHA1

                                  9c241c949018c5d9b98b5fdccc2d1a4f05ba076d

                                  SHA256

                                  64686b135198dcbd92bdd0ccb59b22caa80031d884e6b6059c232f4bd0255ec8

                                  SHA512

                                  9d98d04afe305642946f4d571ed1d40ba66c2c0bbe6d230ef77c71045a15ad68f454f4d1c4b5a915f78710e8fa4b801195449d1209468b4c82c26e8f786cce6d

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

                                  103KB

                                  MD5

                                  b251b3a6f029ee6b2d99e161e5ad8d8c

                                  SHA1

                                  eed805441cb486c8c31286694e5824e0543c7784

                                  SHA256

                                  8f056f0a1628dd867ae7450f8c2605c5b4ee1f51ebfda0cbfd75e2d3ec05856a

                                  SHA512

                                  cbcf0c17bd735a593f20be0b47a5a07797307510903fa065f7f4c403f00fa14750cea7463b7f023a12a080e18a8ad42d2f87da25d99a0c40e699a77d0d3045ce

                                • 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\zjmdumfk.exe
                                  Filesize

                                  2.3MB

                                  MD5

                                  315057e3fa306cd68248a18029e1c63a

                                  SHA1

                                  c13a8a556429f85c9f3365f7dbe2379d040ca9a7

                                  SHA256

                                  b68773eaf1a6a8e663a28cda929f8dcb34030d80507dec54d99aa8d993146117

                                  SHA512

                                  6535997e32c4bab6fadaf7494c3b4b227cd4f7457a6e6b2ef72195f392844e645e2cd44e64353df3f008ea1f16ad663b0b0a8e31041a6db4b31251dcbb587199

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

                                  2.3MB

                                  MD5

                                  315057e3fa306cd68248a18029e1c63a

                                  SHA1

                                  c13a8a556429f85c9f3365f7dbe2379d040ca9a7

                                  SHA256

                                  b68773eaf1a6a8e663a28cda929f8dcb34030d80507dec54d99aa8d993146117

                                  SHA512

                                  6535997e32c4bab6fadaf7494c3b4b227cd4f7457a6e6b2ef72195f392844e645e2cd44e64353df3f008ea1f16ad663b0b0a8e31041a6db4b31251dcbb587199

                                • C:\Users\Admin\Downloads\Inv No 47302.zip
                                  Filesize

                                  2.1MB

                                  MD5

                                  647efd971b659dee52466bee9c074f35

                                  SHA1

                                  68ad9eb05e995a25312244b776ded0a4a8c50f6b

                                  SHA256

                                  d52a1a8bdad75eaa4d109caf29e20dff9c30a249ea195ddf26711b75f1eb87ae

                                  SHA512

                                  ff9a8dd947d11db2716817b6ff48e2c8c61936c16c4c1b9a922615fb1222b4a2eb753568e06ed60372096a8236041d9dae0f0942897f4a154da765fb9062a0c7

                                • \??\pipe\crashpad_4980_MHESANVGUFWFQFHH
                                  MD5

                                  d41d8cd98f00b204e9800998ecf8427e

                                  SHA1

                                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                                  SHA256

                                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                  SHA512

                                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e