Analysis

  • max time kernel
    600s
  • max time network
    593s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2023 16:28

General

  • Target

    http://comstarllc.net

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 1 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://comstarllc.net
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1264
    • 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,0x100,0x104,0x40,0x108,0x7fff9a599758,0x7fff9a599768,0x7fff9a599778
      2⤵
        PID:4276
      • 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=1908 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:8
        2⤵
          PID:1844
        • 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=2260 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:8
          2⤵
            PID:3312
          • 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=1636 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:2
            2⤵
              PID:644
            • 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=2900 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
              2⤵
                PID:1688
              • 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=2892 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                2⤵
                  PID:3872
                • 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=4556 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                  2⤵
                    PID:3460
                  • 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=5068 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /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.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5064 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:8
                      2⤵
                        PID:4728
                      • 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=10 --mojo-platform-channel-handle=5080 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                        2⤵
                          PID:696
                        • 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=11 --mojo-platform-channel-handle=5364 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                          2⤵
                            PID:4788
                          • 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=12 --mojo-platform-channel-handle=5472 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                            2⤵
                              PID:4212
                            • 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=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=5148 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:2
                              2⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4492
                            • 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=14 --mojo-platform-channel-handle=5464 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                              2⤵
                                PID:4820
                              • 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=15 --mojo-platform-channel-handle=5392 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                                2⤵
                                  PID:2696
                                • 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=16 --mojo-platform-channel-handle=1448 --field-trial-handle=2072,i,16382904106160083469,2380522138093305482,131072 /prefetch:1
                                  2⤵
                                    PID:1516
                                • C:\Windows\System32\svchost.exe
                                  C:\Windows\System32\svchost.exe -k netsvcs -p
                                  1⤵
                                  • Drops file in System32 directory
                                  PID:2360
                                • 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:4616

                                  Network

                                  MITRE ATT&CK Matrix

                                  Replay Monitor

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                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index

                                    Filesize

                                    288B

                                    MD5

                                    fec593c93963a22711ff7ac0d4d26359

                                    SHA1

                                    380c3094bbfb24fb32c5799b533cbc01f81ab416

                                    SHA256

                                    95d0894161b18f8df0c1d376806a3b71f0627de5b9b0835ce3f6b2975908e154

                                    SHA512

                                    23807b184445c164c341e7ad8f1de9d7abee8f72d1a86230f02b70a8fb2a13d987f05bcc5f0c575b8580d13218b8e1cdac3f70bf1ceb13625ae202c1245963a8

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index

                                    Filesize

                                    432B

                                    MD5

                                    9aeddb3eb440813011af57430bc452fa

                                    SHA1

                                    a7c4b9a0e5e7d477d94ce1ab7e09c47239959298

                                    SHA256

                                    773eab1ef492565ec6b2d7f5e0df75690ed28872883efd03b93ed44becc63eed

                                    SHA512

                                    b1d4b64124f0a4210036612235b1a1f313758236327ecd880e455439180628497f4455663cc7ec1a4766ba3c486b4f35820f5c551b4292a30a9d062227f1c467

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index

                                    Filesize

                                    384B

                                    MD5

                                    67635bb203d61a2b1fc8e7f7103c39be

                                    SHA1

                                    2c8578d0ac3e612d57ef942ceefd9f1e9b4e4e54

                                    SHA256

                                    41c06dfce604e7ee8c2173a8242eded2522b8278fbb994cba19d0c3c5a537e5e

                                    SHA512

                                    d0132498044f8f4ee8bd413df0d415b6f753f6dca19459fe71c01db08190e7e2c8a12403c3ccd17a54180307180d74981dd42d73f5a4a0da1d5103d27ee1892c

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index

                                    Filesize

                                    336B

                                    MD5

                                    40b26b45fb05b3a6cfaadec6195aef84

                                    SHA1

                                    a0a0be9508e7157e88a51e7f0b403f14897e2c0a

                                    SHA256

                                    74d6cfad14d34b47db623c2fa7ea41f0824980e192860dc61f927b65c99fa63a

                                    SHA512

                                    f5c533585356974f2096083aca0a80c4882e34b3a571700eccc23229eaa1b9c1a6612e3aca69caecfd9c8fd9bff2ab19b85c5c8380140e0af2893044d78b6c7b

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index

                                    Filesize

                                    120B

                                    MD5

                                    03f53e02b0e27bf2f0106877f4c5530f

                                    SHA1

                                    5b30489403125cba847e7bf751c390de2bce0d50

                                    SHA256

                                    9b5aa434e018487ef37003b81b8d8013c0ab5a74bc0f6d963cc2459365771aa3

                                    SHA512

                                    2a7cdee52258f0063f8649e082ddc0181988c7ace9d5b6501e9f3d69db99284839483754430c7d1f8bdc704f9dc843d05a825e671ee587aecd6967a765615016

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

                                    Filesize

                                    1KB

                                    MD5

                                    1e78f00529ebe4d052fe8b47729f6c84

                                    SHA1

                                    c6979ac4853fa194bd4f65cca6a0f58cca42d885

                                    SHA256

                                    f801c17035d77d3b84501b6cba5c1b7e6946477c4c72066b5133a13d2a21ac67

                                    SHA512

                                    e2a01bca2aae1dbb10a7eeca0e3dc3ad7f42e1e0dc3f43374e9d4db1c81ba2ff67312455eefc6efd27bfd965a0208b017325d3a6278dec9bda9df55f663c94d1

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

                                    Filesize

                                    2KB

                                    MD5

                                    4a621b47741a97a12da083e83c0d4122

                                    SHA1

                                    53abde59ce9a3bf6c04201d13049fb9e560c97c4

                                    SHA256

                                    e888369db01caa32460ac2093dedf771ef9d0b06cabd4252d5ddb30d84a6c235

                                    SHA512

                                    aa20a3deafb51fef4a94000c09ba7e6313daca43eefff69818dfa4278d30ed0270928f904e0680885bcb2e5aded8906e6bd356abf686b780fdd809e8074ec0af

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

                                    Filesize

                                    2KB

                                    MD5

                                    6012d94d8abfcd4493cc7687d28f25a6

                                    SHA1

                                    6ae051d1e6034ada2b6847682d3a33f9a0b8a17c

                                    SHA256

                                    47ec21959f58f4b35600555b392e151bbdea052975730be64e50efbc2252ba0f

                                    SHA512

                                    a1942f818e15742529b7798d954ae01ea87ef706130a0c6327152e8be379eda04a36cdffb3f48bf00ebfb618bafbf90fbda1f25fc898b368bdb7e035e4666261

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

                                    Filesize

                                    1KB

                                    MD5

                                    1f5cd09d85bce05491bb8649f179ba17

                                    SHA1

                                    d48d9f1731fbf397f31560b86f17600201555678

                                    SHA256

                                    45455f11622e9ec6cea03f4dfcb67fa892862fd36cb6d6b335ef451df5c05bd2

                                    SHA512

                                    170abd2338a29f291179850f1fd1273ccf01c67a0b37e1fad70b5a47143b7bd9a1d97f05885f3dcd429855146a404cd8dbb777335957eb6ad436e667628700fa

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

                                    Filesize

                                    2KB

                                    MD5

                                    7f5fe81a0d5ea04daf3b4422a8dd14fd

                                    SHA1

                                    65d740be7d06fdcafa25c56d0fb5b50ee622654b

                                    SHA256

                                    8a9bbf4b24e1ad90c874e640873d60d70000b5457c11c2ca3b88474149c9bd62

                                    SHA512

                                    8cf1d292f98f48e6e78ef171e1e24b95aa8c9d2225554738865cd46afed9ec9064936d198edf0d0ec30f624e318654cf148c99a1829c61040e3e7171728bb4d1

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

                                    Filesize

                                    6KB

                                    MD5

                                    c89a944d39af547942afefa09d90472b

                                    SHA1

                                    8475733f91e7f28741c1981491743f941f0d78ef

                                    SHA256

                                    46d94e9596c871e5aab6a48bf57bf2219be251388cbc46af91478fe123cdecfd

                                    SHA512

                                    868bbe9ab59cdac189e07dc13a61074360a91b132570e349a64e90e7c489c5d3373bb7ad6bdad4013b6c155b8c3d8ed0e02b6498eb5995a6bd8d409eda170d3e

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

                                    Filesize

                                    6KB

                                    MD5

                                    1e9de6a5a49028e5f824f48f936fa422

                                    SHA1

                                    7ac7ec3c180d6e7f5ed882ec1a0014960a079da8

                                    SHA256

                                    396e3f5773fc7082a040f683d96bad067408ee9d10b81d4d641470ab8ffe020e

                                    SHA512

                                    4029ac3d09407fac380a94d7b4c29400dcf42710a025e79cbfee391bffb55950fd13676b2843d6f11bc5cae7224d7efec39b897f711cbec10401d8f6e5c3e78f

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

                                    Filesize

                                    6KB

                                    MD5

                                    fd9ce4499270466d509c7775c1c1777a

                                    SHA1

                                    4eda9709f302c5e27d4eb919ab8e19a833978c0e

                                    SHA256

                                    78ae31e284d4117adbb6d053e16f1188a3883595cf159db1a0e6b322fec02c6f

                                    SHA512

                                    3a177372f5ef9c980e3b98f26a7513b5b07391fbea8556b783e8811d96da8bc60af50e1356e708e5dd4618516c94b207c76ad5fc23c79c3a3115f6867f3923d5

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

                                    Filesize

                                    87KB

                                    MD5

                                    f5d46a6526ac1a4ea9bf78cbaf70b1ba

                                    SHA1

                                    25893c40ea1be45145cdaf373d8af0d3559e3657

                                    SHA256

                                    032766b1ebd422470e826459d7aa1da364f645062a582791c8cfb59e687d2d2c

                                    SHA512

                                    1e279585f002c6b24e6e8b8ba8475a07e0813cad4c1e0d9e21b69e5326c1f850eba39cb83ba225c222db38a328bc1c196c3cde58d3de1cc5b317fcd84a016717

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

                                    Filesize

                                    2B

                                    MD5

                                    99914b932bd37a50b983c5e7c90ae93b

                                    SHA1

                                    bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                                    SHA256

                                    44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                                    SHA512

                                    27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd