Analysis

  • max time kernel
    60s
  • max time network
    61s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    05-09-2024 12:42

General

  • Target

    updater.exe

  • Size

    6.1MB

  • MD5

    be00675212ecb96e7603354c84387ba0

  • SHA1

    ee4bfb93dea04a35e15e95dbcb096f66ffa8f907

  • SHA256

    e394b31b5d3530ba36cc348fab8ddf79cbe635b81c7991e93d1dec14c7076a68

  • SHA512

    bd0c5c530d162c70a440a471bad345c2d1d94caf6cfeb3c3a0ae38805eb68664a8a8d349b6d867747bcdc2416da39a16efd36f29ae83f04314dc06c4097d73b4

  • SSDEEP

    98304:gJIMtJix6CC7mR6jatnIC6JCfoYFu/I36GU8seJBHh9NwQYENY1yIXXrjmjyirxc:3f3C7mRP9hPfXE/5GUJWKQKFrj0rxc

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 1 IoCs
  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\updater.exe
    "C:\Users\Admin\AppData\Local\Temp\updater.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Program Files\silence\loader.exe
      "C:\Program Files\silence\loader.exe"
      2⤵
      • Executes dropped EXE
      PID:4492
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Drops file in Windows directory
    • Enumerates system info in registry
    • 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:1916
    • 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:4 --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=123.0.6312.123 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ff9fa6acc40,0x7ff9fa6acc4c,0x7ff9fa6acc58
      2⤵
        PID:3612
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1872,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=1820 /prefetch:2
        2⤵
          PID:1196
        • 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 --no-appcompat-clear --field-trial-handle=2140,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=2148 /prefetch:3
          2⤵
            PID:4692
          • 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=service --no-appcompat-clear --field-trial-handle=1740,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=2224 /prefetch:8
            2⤵
              PID:456
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3112,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=3204 /prefetch:1
              2⤵
                PID:4524
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3292,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=3280 /prefetch:1
                2⤵
                  PID:3316
                • 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 --no-appcompat-clear --field-trial-handle=4544,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=3668 /prefetch:8
                  2⤵
                    PID:4088
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --field-trial-handle=4620,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=4660 /prefetch:1
                    2⤵
                      PID:1404
                    • 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 --no-appcompat-clear --field-trial-handle=3668,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=4860 /prefetch:8
                      2⤵
                        PID:3376
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --field-trial-handle=4552,i,3975249376058082959,17591463989555817017,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=4340 /prefetch:1
                        2⤵
                          PID:3188
                      • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                        "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                        1⤵
                          PID:4504
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                          1⤵
                            PID:1640

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

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                          Downloads

                          • C:\Program Files\silence\loader.exe

                            Filesize

                            21.6MB

                            MD5

                            1f83dc0529085fcd339fc0fd5537773d

                            SHA1

                            260a92dcbab701b65218b4f0f5539984cc19481f

                            SHA256

                            d18edfdf943460fa7ee4a17543502d914fa3bcf71bead34734aa73e5de48258e

                            SHA512

                            a47f72f8a4b82d7b90c90a7a251985cac6a78224388510f510de4e0e2219167809c313ec4b52b4742d11df61dfe77a7700ca66464d0dc553e950820de5200942

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

                            Filesize

                            649B

                            MD5

                            737c150477df2495b731f5e5ff9b7bfb

                            SHA1

                            b8d46b59e5be4c1ce2170ca2e14553fd66abf3a0

                            SHA256

                            907630a4afb7e056eeb9293c8b8177ccdf8ab44a2f0ff0a09dc658137121f669

                            SHA512

                            da43171a92b68eca4bbc16f8fb95da46feb9c819d2dc75dabe9632ddac25d1de5a96528934489f3c3e8dcf67a53189932d9b5171e3ab4398d68e50a4e55880cd

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000001

                            Filesize

                            212KB

                            MD5

                            08ec57068db9971e917b9046f90d0e49

                            SHA1

                            28b80d73a861f88735d89e301fa98f2ae502e94b

                            SHA256

                            7a68efe41e5d8408eed6e9d91a7b7b965a3062e4e28eeffeefb8cdba6391f4d1

                            SHA512

                            b154142173145122bc49ddd7f9530149100f6f3c5fd2f2e7503b13f7b160147b8b876344f6faae5e8616208c51311633df4c578802ac5d34c005bb154e9057cf

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

                            Filesize

                            216B

                            MD5

                            2dc05f253a7b41b315ef2920b10c1a0c

                            SHA1

                            eb049348c671b613108787f84c7e75674e051a57

                            SHA256

                            8bc526f6dfd237297bf2e0da13f33bc69f0e698317a76ef56e916c9ab1c54fc3

                            SHA512

                            dbe8a6b853d488e57a67fbf09aa8ccc291ae9e5812793d51bbd9db45ee14e5a88cc5a1268a0d64d9446ec84dd70d1fc09a06e94cea58222df267ee84a1e7375f

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

                            Filesize

                            1KB

                            MD5

                            91ffc3b9695d2d821d0572048b9e9681

                            SHA1

                            ceb9f516cd8b54f7af3696703ca3d4d7eb528fe9

                            SHA256

                            c122041b975bf1dd521690d9f87bfb7660bebf4f2853e6d1065ad5634dc3af05

                            SHA512

                            914fbd60153e30a0f278db20daca3fd3a9594ee7575eb2dab5131b420487bd1f6d0dd3954d22527be52517ee2e000dc56cc6a170a594aa66bd74c6d356fe5288

                          • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                            Filesize

                            2B

                            MD5

                            d751713988987e9331980363e24189ce

                            SHA1

                            97d170e1550eee4afc0af065b78cda302a97674c

                            SHA256

                            4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                            SHA512

                            b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

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

                            Filesize

                            356B

                            MD5

                            1904037d7d4afa7bc6605640bf032d14

                            SHA1

                            9389fabb52381dd38352e1bd5c956ab75b8c70a8

                            SHA256

                            fd1bb716fd7d5a4f1b785ac5008506fd76441239acc91e774db782371b808b29

                            SHA512

                            d35722ca5a321ed3a459f58223ed56339b0c4deb6b8a63ef90e066f7d9c5cb23ef3c88df8e24c6f9ded9b09f3b6942c2fbbf103da206806a539cfe8704fb83dc

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

                            Filesize

                            9KB

                            MD5

                            3e51d13f2908c26f56c8663bb77872ec

                            SHA1

                            86de10a71ca668e352d7c5c20e6278c76b9ba817

                            SHA256

                            eaf8e6cf828b7f3f979c6a51c450a3118a23396c17e7794786cf08f62a318292

                            SHA512

                            507e1d5c4b0bc378880d00e8a4cc32c602bcf08dd9e64f449a3a071751fda82564943cd3d81beb7363981bd4e0310a7b0d4edbbb13cca86ce91587bf02430518

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

                            Filesize

                            9KB

                            MD5

                            871b50538fb6912ee0cc8ff9e6824181

                            SHA1

                            83779433a5db4790eaa1066c2abe29fb58e57d8f

                            SHA256

                            fd539e56cacee6e319710ce403df3202fef558321802ff2f2a77f635b95a6a59

                            SHA512

                            3bfe4e05d9d1e7523d96b06abf0be57cde0f7dbf2a8fa53b2e3450d449ae384a8b41b26d11ebc2fb4e4e511b7a100ad9c6b9a78a19311e84e394ac593d5fc9de

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

                            Filesize

                            9KB

                            MD5

                            dd073b7ba7d7e80e9f843aa1c6b29bef

                            SHA1

                            2da9a07b13af31226e2976a9d0dbe9e875e5174d

                            SHA256

                            9eda0d1dbdd019186d921fbeff1c01e971575b3525296687ea4cca5bedc53ce0

                            SHA512

                            3aa6bf2934b80d5c0a7a90ee467e7d2494aade6152b00b780e3dd3c832c6bb2b9ea2cffa3d51d49e442599f31918caeb31e4e8bdf3a06b4e8196d32a2bf72df0

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

                            Filesize

                            13KB

                            MD5

                            cb7ae9936a07a9442bd0f459962c2f0d

                            SHA1

                            e8c498db8102cdd25a4621a1e55b75f4dd13d12e

                            SHA256

                            13b4fdc3feeaf6b03bcb3ec8affd0354710fde372b28338f4c55a9f0e35d7aae

                            SHA512

                            69e88c1040e6d66bd3feec82b55df1707b21dd8522718f2ade21adf94e4345015b18b530e4ccdf6cae8a15efee84d5f3beb8b98d08c7ab3bb6e43294e78a2e71

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

                            Filesize

                            205KB

                            MD5

                            b61223ca3ef361efe60340cb6f9a81d1

                            SHA1

                            6d5a409afd9e4c58351a76cc0038e9ccae533f64

                            SHA256

                            0685b3109161b724c9b00a62ef6c761e3efefbb60bcf4b71ca18093bb9d18e9a

                            SHA512

                            d3a81ec17a432e94456c316c41a50dd6b3a633125a76daea450214088c665c2c9651a8afe8abac6cc89994074cebc43029548ef5ec9b392cfb5dd2d65c9011ba

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

                            Filesize

                            205KB

                            MD5

                            1da60379e08f3955c68d92f90ac2fe56

                            SHA1

                            5acffa39b5c9f78a8c676b53acdeb0300e2dcd6a

                            SHA256

                            654e2e8a545ae3ba293aad5f42dfa4b77ae730fbdaa946ab85bde2317169835d

                            SHA512

                            68a21e3c1bcae59230cc10456d48b2c175231fe6b05f10fa24aa5c75fe6131536aa366ff86e1221cd56b91f0f4d5a70cd74ca2d3b2be7fc2438d3dbf4004bf5f

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

                            Filesize

                            264KB

                            MD5

                            ff15da8f606673dfed938f8d602cc467

                            SHA1

                            7eed0dc32f0a1b0ea59212e6833432ea5a8e9a1c

                            SHA256

                            537cfdf20b35814060a15b9b863dfeefb24f2e472b94b02f778a2975c211fb39

                            SHA512

                            2ac49b405e7a6fd7a1992bf37af91d79529725798a8264af16ccf64827e425c493a22836d37b3452dbfeb2e82bd05ee4f939f8a2e656b89bcbe3079dad1f03bb

                          • memory/2248-8-0x0000000140000000-0x0000000140E52000-memory.dmp

                            Filesize

                            14.3MB

                          • memory/2248-0-0x0000000140000000-0x0000000140E52000-memory.dmp

                            Filesize

                            14.3MB

                          • memory/2248-23-0x0000000140000000-0x0000000140E52000-memory.dmp

                            Filesize

                            14.3MB

                          • memory/2248-2-0x00007FFA09170000-0x00007FFA0922D000-memory.dmp

                            Filesize

                            756KB

                          • memory/2248-11-0x00007FFA0918A000-0x00007FFA0918B000-memory.dmp

                            Filesize

                            4KB

                          • memory/2248-10-0x0000000140000000-0x0000000140E52000-memory.dmp

                            Filesize

                            14.3MB

                          • memory/2248-9-0x0000000140000000-0x0000000140E52000-memory.dmp

                            Filesize

                            14.3MB

                          • memory/2248-24-0x00007FFA09170000-0x00007FFA0922D000-memory.dmp

                            Filesize

                            756KB

                          • memory/2248-5-0x00007FFA09170000-0x00007FFA0922D000-memory.dmp

                            Filesize

                            756KB

                          • memory/2248-6-0x00007FFA09170000-0x00007FFA0922D000-memory.dmp

                            Filesize

                            756KB

                          • memory/2248-4-0x00007FFA09170000-0x00007FFA0922D000-memory.dmp

                            Filesize

                            756KB

                          • memory/2248-1-0x00007FFA0918A000-0x00007FFA0918B000-memory.dmp

                            Filesize

                            4KB

                          • memory/2248-3-0x00007FFA09170000-0x00007FFA0922D000-memory.dmp

                            Filesize

                            756KB

                          • memory/4492-20-0x0000000140000000-0x00000001436EF000-memory.dmp

                            Filesize

                            54.9MB