Analysis

  • user interaction
    yes
  • max time kernel
    900s
  • max time network
    900s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/08/2026, 18:36

General

  • Target
    Client-2.exe
  • Size 2.6MB
  • Sample260809-w812jstdqg
  • SHA256 4518753aea43be0fa3d6755f531d569a209b715616c076880b7cdd026eebf3d1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.6.6

Botnet
  • Office04

C2
  • c6qitux5e.localto.net:2164

Mutex
  • b37c4cbf-68f4-4e7c-92ba-ac265729eb51

Attributes
  • encryption_key

    7799F230382DEC15CFC54F1D560B5A8B875621D2

  • install_name

    .exe

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-2.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-2.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Windows\SYSTEM32\Conhost.exe
      Conhost --headless cmd.exe /c taskkill /IM chrome.exe /F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4004
      • C:\Windows\SYSTEM32\cmd.exe
        cmd.exe /c taskkill /IM chrome.exe /F
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4716
        • C:\Windows\system32\taskkill.exe
          taskkill /IM chrome.exe /F
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4932
    • C:\Windows\explorer.exe
      explorer C:\Program Files\Google\Chrome\Application\chrome.exe
      2⤵
        PID:2700
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2096
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe"
        2⤵
        • Checks processor information in registry
        • 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 WriteProcessMemory
        PID:4636
        • 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=140.0.7339.81 --initial-client-data=0x118,0x11c,0x120,0xf4,0x124,0x7ffc847ac728,0x7ffc847ac734,0x7ffc847ac740
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3628
        • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=1944,i,13175257463237722107,5623918366249812524,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2196 /prefetch:3
          3⤵
          • System Time Discovery
          PID:2916
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1716,i,8934502669431101148,14729246750672932961,262144 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2152 /prefetch:2
          3⤵
            PID:2108
          • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=2428,i,9374302359752565294,18385806070696553894,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2444 /prefetch:8
            3⤵
              PID:4976
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --metrics-shmem-handle=3144,i,17417589358718375730,15735145402288235146,2097152 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3152 /prefetch:1
              3⤵
                PID:3348
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --metrics-shmem-handle=3200,i,3893743934602907514,17551704215936094142,2097152 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3216 /prefetch:1
                3⤵
                  PID:2524
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --metrics-shmem-handle=4256,i,11305252934278349389,15263103539943230339,2097152 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4268 /prefetch:2
                  3⤵
                    PID:3120
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --metrics-shmem-handle=4656,i,11312857114089808819,18409355585477022354,2097152 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4664 /prefetch:1
                    3⤵
                      PID:3948
                    • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=5456,i,1400079411619624486,63299427593248579,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5464 /prefetch:8
                      3⤵
                        PID:1656
                      • 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 --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5860,i,5664269136251977551,18147751306305674020,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5864 /prefetch:8
                        3⤵
                          PID:1564
                        • 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 --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5496,i,15855454118799075064,12591098339955566457,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5840 /prefetch:8
                          3⤵
                            PID:2172
                          • 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 --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5856,i,11469578499869415708,14604794814696887129,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5980 /prefetch:8
                            3⤵
                              PID:1820
                            • 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 --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=4280,i,15319677475273901628,1251878680504621819,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4260 /prefetch:8
                              3⤵
                              • Modifies registry class
                              PID:1616
                            • 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=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=5672,i,927301326153282304,3630829346130988758,262144 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5840 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4308
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=on_device_model.mojom.OnDeviceModelService --lang=en-US --service-sandbox-type=on_device_model_execution --force-high-res-timeticks=disabled --metrics-shmem-handle=4304,i,13717306480108477705,6337481073141815213,524288 --field-trial-handle=2156,i,3475264774207586891,3446178507062459106,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5876 /prefetch:8
                              3⤵
                                PID:3996
                          • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                            "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                            1⤵
                              PID:2564
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                              1⤵
                                PID:808

                              Network

                                    MITRE ATT&CK Enterprise v16

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    metadata

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\metadata
                                    • Size 114B
                                    • SHA256 29fde6ae5a0545f27bd5830055bc21b92f41bb3c58d81be26f866e040386a7a6
                                    • MD5 SHA1 SHA512 TLSH

                                    5ea6a8dd-7bad-499c-85ae-e23064a7dd05.dmp

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\reports\5ea6a8dd-7bad-499c-85ae-e23064a7dd05.dmp
                                    • Size 109KB
                                    • SHA256 1f06111b679230d608fed4d4b900a15a0aa2617b0ae907c0331d94184449d1dd
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    settings.dat

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\settings.dat
                                    • Size 40B
                                    • SHA256 934e8a2dd0b8fc2347eea4a5fcd1e0271ad9d5a2afa5dffa8aef017283231eb4
                                    • MD5 SHA1 SHA512

                                    BookmarkMergedSurfaceOrdering

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BookmarkMergedSurfaceOrdering
                                    • Size 6B
                                    • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                                    • MD5 SHA1 SHA512

                                    BrowsingTopicsState

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                    • Size 414B
                                    • SHA256 0d2c0b2a021d1410e8388539f08e907d013aeb7a9b32097edbe512ad1abfb860
                                    • MD5 SHA1 SHA512 TLSH

                                    Network Persistent State

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                    • Size 2KB
                                    • SHA256 515469f5c3ee761edce87facd6b3c7f59ba2b368347a1c48601514c4f2985283
                                    • MD5 SHA1 SHA512 TLSH

                                    Network Persistent State

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                    • Size 2KB
                                    • SHA256 efb15c307ecd8027ec199976245c100f8e7b739b0975703e426892c89d42fb3f
                                    • MD5 SHA1 SHA512 TLSH

                                    Network Persistent State

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                    • Size 2KB
                                    • SHA256 4150afd2f7f6ed53f0c7e583c61490f164782ac62fc6f7bea4e957f3a0cc8da6
                                    • MD5 SHA1 SHA512 TLSH

                                    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 519B
                                    • SHA256 1251b702082a4b56741373e0d4fa90aa5fcfc1eb3abae4f4317f7b338dfc3502
                                    • MD5 SHA1 SHA512 TLSH

                                    Preferences

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                    • Size 12KB
                                    • SHA256 b7160c7776d5f0313942033c285931bc77b2c83857ef370b01e1e99878edf9d0
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    Preferences

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                    • Size 12KB
                                    • SHA256 dfb14b99b5e870d09e987a2e259b66900578cd65c3e08efa4d5e8a89ab307412
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    Preferences

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                    • Size 13KB
                                    • SHA256 dc7be7464ff194d51741dc3bc6e631136237be17c6efea9750019be2c6c3b35e
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    Secure Preferences

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                    • Size 17KB
                                    • SHA256 93a969d5494520a313d59c847d3ee10e51ce49e2c8cea4f6ea38850cfab527d0
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    the-real-index

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                    • Size 120B
                                    • SHA256 fbe92b3f9326043105ccabe85c97b493699c6207fe59f5cf2721c1fd7c015405
                                    • MD5 SHA1 SHA512 TLSH

                                    the-real-index~RFe58ccc1.TMP

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe58ccc1.TMP
                                    • Size 96B
                                    • SHA256 da0b00281538250d0870b8ec9264da3035b75ba6fe98f0af2aaa99fe47976053
                                    • MD5 SHA1 SHA512 TLSH

                                    Local State

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                    • Size 236KB
                                    • SHA256 b8b55e8dcb3260e57c548f3e9a3b97c16473ead41aa0f1cdeaa832aee338e3a0
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    Local State

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                    • Size 236KB
                                    • SHA256 7d876417b8a11ec26f818a38ba63cde2f69f1971c4a0bbabe7a19df558eb1c30
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    Local State

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                    • Size 115KB
                                    • SHA256 47782c5ec218ee42418849706f1b5586baad36b0a7ba5116bf583ef04f7db28a
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    Local State

                                    • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                    • Size 235KB
                                    • SHA256 f7cd3147bbf3ef369dc0b5fec3ba14046eae4dabe2becb5a2c3627ee0a951eea
                                    • MD5 SHA1 SHA512 SSDEEP TLSH

                                    memory/2544-10-0x0000023C1FD90000-0x0000023C1FDDC000-memory.dmp

                                    memory/2544-9-0x0000023C1FC90000-0x0000023C1FCC4000-memory.dmp

                                    memory/2544-19-0x0000023C04F60000-0x0000023C04F70000-memory.dmp

                                    memory/2544-17-0x0000023C20440000-0x0000023C2044A000-memory.dmp

                                    memory/2544-16-0x0000023C20470000-0x0000023C204AC000-memory.dmp

                                    memory/2544-15-0x0000023C20410000-0x0000023C20422000-memory.dmp

                                    memory/2544-11-0x0000023C1FDE0000-0x0000023C1FE2A000-memory.dmp

                                    memory/2544-12-0x0000023C1FE30000-0x0000023C1FE5A000-memory.dmp

                                    memory/2544-0-0x0000023C04740000-0x0000023C049DE000-memory.dmp

                                    memory/2544-18-0x0000023C204B0000-0x0000023C204B8000-memory.dmp

                                    memory/2544-8-0x0000023C1FC60000-0x0000023C1FC86000-memory.dmp

                                    memory/2544-7-0x0000023C1FC10000-0x0000023C1FC5E000-memory.dmp

                                    memory/2544-6-0x0000023C1FB70000-0x0000023C1FBBA000-memory.dmp

                                    memory/2544-5-0x0000023C1FCD0000-0x0000023C1FD82000-memory.dmp

                                    memory/2544-4-0x0000023C1FBC0000-0x0000023C1FC10000-memory.dmp

                                    memory/2544-3-0x0000023C1FB30000-0x0000023C1FB6A000-memory.dmp

                                    memory/2544-2-0x0000023C04F30000-0x0000023C04F4E000-memory.dmp

                                    memory/2544-1-0x0000023C04F60000-0x0000023C04F70000-memory.dmp