Analysis

  • max time kernel
    300s
  • max time network
    247s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    02/12/2024, 16:31

General

  • Target
    https://www.dropbox.com/scl/fi/j3tjzg5l5cn8o2g9nhulc/Or-amentoProdutosPdf.msi?rlkey=zq16gpcx74mv2k73ut38hdjsw&st=h34fzzpv&dl=1
  • Sample241202-t1tamaskes

Malware Config

Signatures

  • AteraAgent

    AteraAgent is a remote monitoring and management tool.

  • Ateraagent family
  • Detects AteraAgent 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 32 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://www.dropbox.com/scl/fi/j3tjzg5l5cn8o2g9nhulc/Or-amentoProdutosPdf.msi?rlkey=zq16gpcx74mv2k73ut38hdjsw&st=h34fzzpv&dl=1
    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:1596
    • 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=0x21c,0x220,0x224,0x1f8,0x228,0x7ffec353cc40,0x7ffec353cc4c,0x7ffec353cc58
      2⤵
        PID:2152
      • 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=2060,i,918278184864601751,6331682315943404600,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=2052 /prefetch:2
        2⤵
          PID:1340
        • 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=2004,i,918278184864601751,6331682315943404600,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=1756 /prefetch:3
          2⤵
            PID:3140
          • 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=2268,i,918278184864601751,6331682315943404600,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=2448 /prefetch:8
            2⤵
              PID:4812
            • 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=3128,i,918278184864601751,6331682315943404600,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=3164 /prefetch:1
              2⤵
                PID:3664
              • 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=3156,i,918278184864601751,6331682315943404600,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=3200 /prefetch:1
                2⤵
                  PID:4400
                • 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=4616,i,918278184864601751,6331682315943404600,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=4628 /prefetch:8
                  2⤵
                    PID:2508
                  • 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=10.0.19041.4355 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=500,i,918278184864601751,6331682315943404600,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=836 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1876
                • 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:1432
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                    1⤵
                      PID:3728

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          BrowsingTopicsState

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                          • Size 649B
                          • SHA256 c810b9d757bc935b4a100477aac0905d27dff1e9b4e29cde93bfeabe5b6fc09e
                          • MD5 SHA1 SHA512

                          Network Persistent State

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                          • Size 2KB
                          • SHA256 f9720ca381a1cec3bdf2d1ab06a639f3ab3537104add282d1a2e4324bde85378
                          • MD5 SHA1 SHA512

                          Network Persistent State

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                          • Size 1KB
                          • SHA256 b744370865e53f0db4fb21778a518f19bd93ee3e82af084c0848242985b2f08d
                          • MD5 SHA1 SHA512

                          SCT Auditing Pending Reports

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                          • Size 2B
                          • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                          • MD5 SHA1 SHA512

                          TransportSecurity

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                          • Size 690B
                          • SHA256 227978b4ea28dab8cb7b04100b91f3fcdf1279a3cc0709fdde2435cd1cb311e1
                          • MD5 SHA1 SHA512

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 604af1785c50983785b10dd5bf524a7ef93c00134db1f9c413562d3260c785f5
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 4f36daab096b0992ef561f7cab59d9ce2042b1be94949cde16e282001a00ccfa
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 4f5ff374dfc815c233d9738ee8f38f930be5468b4b2885eacebab512362c18fa
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 2157b04812ba23aa4fbc8e1aaf28398ded18b5ce00b7a58c2e1bccde6592de08
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 816211027a3dc4ba6f55f3699beb7d5c021af1b9477574efcff8e4eebfe73488
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 7fd7665965596fd650a65f26a62111d6e546478cf79d5265d61de13f0698dbb5
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 ff82443c568c51e78a81b88c8cb97f76f8af208c7ecd1db449a05572d0ad96e5
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 76182743a17f9583301b6a11c0fccdf117218ceee2d9a626991de1d136265373
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 4ac18321c79877c8333ad0d04b32ba53f33894494537e212a41586bd2cf1897b
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                          • Size 9KB
                          • SHA256 4c87c12aa5815b2f5fe768af93109ecefc0fdb351f422dcd74312d07c2f622b0
                          • MD5 SHA1 SHA512 SSDEEP

                          c8c4e36f-6db5-42b7-a286-2482413d6cf6.tmp

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\c8c4e36f-6db5-42b7-a286-2482413d6cf6.tmp
                          • Size 9KB
                          • SHA256 96c84cf4d31c69830af4727cb4065bec608975c7c72662bf2f87cfec7d307a0a
                          • MD5 SHA1 SHA512 SSDEEP

                          Local State

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                          • Size 118KB
                          • SHA256 df20cbb27f319d8a3e82dda96e1727c7983e85f3e70bd9bd3b601b0ecf9fe011
                          • MD5 SHA1 SHA512 SSDEEP

                          Local State

                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                          • Size 118KB
                          • SHA256 11504f2d3a4c42e2dcc7290b62e29edd08f04c3fc82ca9dfadad22aad65017eb
                          • MD5 SHA1 SHA512 SSDEEP

                          Unconfirmed 10586.crdownload

                          • Path C:\Users\Admin\Downloads\Unconfirmed 10586.crdownload
                          • Size 2.9MB
                          • SHA256 7c3142768abb93df6e5a48d19bb98be75a7c546cd4f39d7009fd05393dfc9d13
                          • MD5 SHA1 SHA512 SSDEEP