Analysis

  • max time kernel
    44s
  • max time network
    47s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14-11-2024 07:33

General

  • Target

    https://github.com/quasar/Quasar/releases

Malware Config

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 13 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Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://github.com/quasar/Quasar/releases
    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:5080
    • 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,0x100,0x104,0xd8,0x108,0x7ffc3adccc40,0x7ffc3adccc4c,0x7ffc3adccc58
      2⤵
        PID:2448
      • 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=1804,i,14531709563696188438,12125003138370551945,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1800 /prefetch:2
        2⤵
          PID:4716
        • 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=1928,i,14531709563696188438,12125003138370551945,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2396 /prefetch:3
          2⤵
            PID:3120
          • 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=2052,i,14531709563696188438,12125003138370551945,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2504 /prefetch:8
            2⤵
              PID:2468
            • 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=3076,i,14531709563696188438,12125003138370551945,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3100 /prefetch:1
              2⤵
                PID:3732
              • 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=3088,i,14531709563696188438,12125003138370551945,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3268 /prefetch:1
                2⤵
                  PID:4584
                • 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=4496,i,14531709563696188438,12125003138370551945,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4632 /prefetch:8
                  2⤵
                    PID:1068
                  • 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 --no-appcompat-clear --field-trial-handle=4468,i,14531709563696188438,12125003138370551945,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4948 /prefetch:8
                    2⤵
                    • NTFS ADS
                    PID:3700
                • 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:2812
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                    1⤵
                      PID:3896
                    • C:\Windows\System32\rundll32.exe
                      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                      1⤵
                        PID:3740
                      • C:\Users\Admin\Downloads\Quasar.v1.4.1\Quasar v1.4.1\Quasar.exe
                        "C:\Users\Admin\Downloads\Quasar.v1.4.1\Quasar v1.4.1\Quasar.exe"
                        1⤵
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of FindShellTrayWindow
                        • Suspicious use of SendNotifyMessage
                        PID:3836

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

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

                        Filesize

                        649B

                        MD5

                        fbd2b72ce286bc0be189ca8f249bfb35

                        SHA1

                        e341999426ee9d38d0b0fa7c59ad12f0cefa93d2

                        SHA256

                        17527de0efc4301759eef6e547043bf9c912b186e2384705ee3ceeaae0eefa66

                        SHA512

                        45ec5a9a4c6fff52aaf2d4735e9c08b82eaea21dccdd548509b100cb11f6c956283efd21a747462ac3ab97d9b34fa5b8153ecf6549b73170616cae59ebea7f79

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

                        Filesize

                        1KB

                        MD5

                        c675f88e494f74aef6a8ecef5b52255f

                        SHA1

                        e0f1481015dc7e3b9879b96efdd6aaad82aec33b

                        SHA256

                        c2d0d84f23ff1adf785d4896ee70f71769e3ddd56bcb94196c242309143e6a62

                        SHA512

                        f3db168c1a495a5d9e91a8b560753e3d5728662fa5d958a6178f704cc8efc9bcd89830d3946ecb3119096e6e72f1dcb426f37c4b8d2730a63f7ca0b6ace1e471

                      • 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

                        1KB

                        MD5

                        4ff5705167b41c973168c897a78ea841

                        SHA1

                        ba2339e4913dcaea3c503cad0b5cf8eaeb2e2abd

                        SHA256

                        27e0f03e827a2e878a41344151b465ab440bc51381b498f70413d03cd443fbdd

                        SHA512

                        3e05b968b80fd5e466edc52d4e2d891f58ee514e75ad292346bd89eba8ea2c8249869eaf0abb3724d2b5334d7b6244fe133fbc51ac2c7e509f5d7dac79cce918

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

                        Filesize

                        1KB

                        MD5

                        e3e8168ed2be5024814b8b2a88e7305c

                        SHA1

                        162b8cdd0e7d147652058bf2ad2b5480b82f5c1a

                        SHA256

                        b215e42665d82a4e550509fc84b88f1e0475c2acfc90b6a0afe59b3fd2f5ecd1

                        SHA512

                        9159d52bc167042cdb6d86c997718f0784a85102a70c10d7d54cc48e3c38d4a5d7af50e605109f4ef290532b6d019b7b89d947d4d2a99ea255a2da0f377ca2c2

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

                        Filesize

                        9KB

                        MD5

                        b7f634d021182d57da9f4c500b148b34

                        SHA1

                        657a3c6932ae64b4ad59db31939a27687155ae47

                        SHA256

                        daafdc204ae83bb738cfeb48185303aab71dba0b5c5045d076d299cb5d580f8a

                        SHA512

                        2ab58ed43d16619f0c6c1543859835f42771b0528532c71fa2313044fff0f40d5a7a505b3d990b38a33db066b3745eb94c372c9a5520a2a8e64a81c0adac8491

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

                        Filesize

                        10KB

                        MD5

                        69aa21259757a95e139dec87a4b4f5af

                        SHA1

                        f42c6c1f34795322c73fa9393d76529b6d16de33

                        SHA256

                        d964c25ee8888f8ff5d08e8de4453e86724e16ebc8aa935ccfcb5002d73fc265

                        SHA512

                        9dab23aec4ebb880388ab413ad1101406ba4599cd34d22afd8fa35da4c8cffa4261378892855877765235345ce85a3574aceefe865edc6009b4e84992819ba31

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

                        Filesize

                        9KB

                        MD5

                        620556207182cdc6ab10d370cdeca0fd

                        SHA1

                        1b2a107bd3ab2365c567fb6beafb0e8976de9ba2

                        SHA256

                        eef4ed2c481b82c6651c1f60b3a3b36345dc59651e892c770326c972b465cd9a

                        SHA512

                        aa4a28960400d843809fe13bb2c55800df16004b6147af293ed6c097d7bb78fbf232c7f862c5deb9498dd7df53a4d43c5b8ba84c01c24b5b79fc4316991398c7

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

                        Filesize

                        228KB

                        MD5

                        d36c11098049ca123d52f0b9aa6c00d7

                        SHA1

                        60f95453d63061b7c7288ea23e640775d52ebf54

                        SHA256

                        cd7b163dd9b3ddcc978ce8c8ea4464a43b63f8a9746df9079df1c5a84d30b634

                        SHA512

                        42c6187eeafadc02cdb4b4e5317617b9d25fc745367b350118536abd096706fc041002aab595da0a4059e1dcc33e905738936d7479cf272bb2a976735ac44ee4

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

                        Filesize

                        228KB

                        MD5

                        d300dc75e5a8fc173671ad2f8d4b2257

                        SHA1

                        779b99013a88624dae244fdd651648ec377472e3

                        SHA256

                        e26b417bcbd100262eb408d5ba84ac5cc49909f66dc4216f7bb94e5a3d8801ff

                        SHA512

                        5ebd824a73e751cde1d9a0d5d62349c2bb666c25cf0d9eb5171d428bca4904707d9412d5dc28666572c3692c459848c0842413c373ff448e10b18a9cf38e9edd

                      • C:\Users\Admin\Downloads\Quasar.v1.4.1.zip.crdownload

                        Filesize

                        3.3MB

                        MD5

                        13aa4bf4f5ed1ac503c69470b1ede5c1

                        SHA1

                        c0b7dadff8ac37f6d9fd00ae7f375e12812bfc00

                        SHA256

                        4cdeb2eae1cec1ab07077142313c524e9cf360cdec63497538c4405c2d8ded62

                        SHA512

                        767b03e4e0c2a97cb0282b523bcad734f0c6d226cd1e856f6861e6ae83401d0d30946ad219c8c5de3c90028a0141d3dc0111c85e0a0952156cf09e189709fa7d

                      • C:\Users\Admin\Downloads\Quasar.v1.4.1.zip:Zone.Identifier

                        Filesize

                        26B

                        MD5

                        fbccf14d504b7b2dbcb5a5bda75bd93b

                        SHA1

                        d59fc84cdd5217c6cf74785703655f78da6b582b

                        SHA256

                        eacd09517ce90d34ba562171d15ac40d302f0e691b439f91be1b6406e25f5913

                        SHA512

                        aa1d2b1ea3c9de3ccadb319d4e3e3276a2f27dd1a5244fe72de2b6f94083dddc762480482c5c2e53f803cd9e3973ddefc68966f974e124307b5043e654443b98

                      • memory/3836-191-0x00000163611E0000-0x00000163611F6000-memory.dmp

                        Filesize

                        88KB

                      • memory/3836-192-0x00007FFC36490000-0x00007FFC36F52000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3836-193-0x00007FFC36490000-0x00007FFC36F52000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3836-194-0x00007FFC36490000-0x00007FFC36F52000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3836-195-0x00007FFC36493000-0x00007FFC36495000-memory.dmp

                        Filesize

                        8KB

                      • memory/3836-196-0x00007FFC36490000-0x00007FFC36F52000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3836-190-0x0000016360C50000-0x0000016360D88000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/3836-189-0x00007FFC36493000-0x00007FFC36495000-memory.dmp

                        Filesize

                        8KB

                      • memory/3836-215-0x00007FFC36490000-0x00007FFC36F52000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3836-217-0x00007FFC36490000-0x00007FFC36F52000-memory.dmp

                        Filesize

                        10.8MB