Resubmissions

17/04/2026, 04:32

260417-e5xraaft4q5

17/04/2026, 04:27

260417-e28dlsat915

Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/04/2026, 04:32

General

  • Target
    ExecPolar.exe
  • Size 1.5MB
  • Sample260417-e5xraaft4q
  • SHA256 7a30ad5c504c42d0bd1f2dae0c58e72c74772dec9bf8eb4de240803b007cc11d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Time Discovery 1 TTPs 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 41 IoCs
  • Suspicious use of SendNotifyMessage 16 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ExecPolar.exe
    "C:\Users\Admin\AppData\Local\Temp\ExecPolar.exe"
    1⤵
      PID:5020
    • 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
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4056
      • 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=0x108,0x10c,0x110,0xe4,0x114,0x7ff87bf8c728,0x7ff87bf8c734,0x7ff87bf8c740
        2⤵
          PID:2956
        • 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=1736,i,13450526755788134122,14920967741848163792,262144 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=1876 /prefetch:2
          2⤵
            PID:3084
          • 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=2200,i,13244346540310313139,5287614522764047426,524288 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=2240 /prefetch:11
            2⤵
            • System Time Discovery
            PID:3364
          • 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=2364,i,6062850601466681925,3143557530194259742,524288 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=2548 /prefetch:13
            2⤵
              PID:3864
            • 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=3260,i,1117781504847706615,406025516862518880,2097152 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3492 /prefetch:1
              2⤵
                PID:3944
              • 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=3256,i,3909422498316255656,8441780865271730363,2097152 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3528 /prefetch:1
                2⤵
                  PID:4392
                • 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 --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=7 --metrics-shmem-handle=4244,i,8355606595999642630,13688299180422660743,2097152 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4360 /prefetch:9
                  2⤵
                    PID:3536
                  • 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=4680,i,11987570439502254453,737573485489346196,2097152 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4688 /prefetch:1
                    2⤵
                      PID:1432
                    • 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=5472,i,7702522886611054513,10822552669784240126,524288 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=5420 /prefetch:14
                      2⤵
                        PID:468
                      • 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=10 --metrics-shmem-handle=5748,i,16141652627037218678,9142019085651870557,2097152 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=5396 /prefetch:1
                        2⤵
                          PID:2560
                        • 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=11 --metrics-shmem-handle=4700,i,2857801909359137130,14955253071573829181,2097152 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=5872 /prefetch:1
                          2⤵
                            PID:2584
                          • 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=3708,i,16134509003889535162,4586777998978775914,524288 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3488 /prefetch:14
                            2⤵
                              PID:1504
                            • 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=3476,i,9763749026900017069,17759443765237750742,524288 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4808 /prefetch:14
                              2⤵
                                PID:4324
                              • 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=4712,i,13682796366578498274,12413505973885425030,524288 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=3528 /prefetch:14
                                2⤵
                                  PID:2248
                                • 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 --force-high-res-timeticks=disabled --metrics-shmem-handle=4860,i,16330586093719268535,10577297606422143153,524288 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=4464 /prefetch:14
                                  2⤵
                                  • NTFS ADS
                                  PID:4316
                                • 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=10.0.22000.1 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=876,i,12194472427888473628,7924282950005953023,262144 --field-trial-handle=1888,i,18295658928371959002,5145216516944316092,262144 --variations-seed-version=20260129-170056.646000 --mojo-platform-channel-handle=872 /prefetch:10
                                  2⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:2192
                              • 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:1812
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                  1⤵
                                    PID:2504
                                  • C:\Windows\System32\rundll32.exe
                                    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                    1⤵
                                      PID:3264
                                    • C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ExecPolar.exe
                                      "C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ExecPolar.exe"
                                      1⤵
                                        PID:1544

                                      Network

                                            MITRE ATT&CK Enterprise v16

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            Downloads

                                            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 edb80eb19f0894488d0ca484f303b769a90dd78c3019325f2b2212f03c2771d4
                                            • 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 02479beaf68cda3f109d6ff899f670a7294893e69230b8cf60398a1cb53de523
                                            • 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

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 13KB
                                            • SHA256 67629930bb183fd8979613e7ebd77dc1e29532bef2743c2cbe90f59dc7a10c18
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 12KB
                                            • SHA256 c90026c844cccc33d7f1ba94a11c311867c5adb92794838598ce4f8300acd944
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                            • Size 12KB
                                            • SHA256 670be45179ffc5719e34024df51468d9e531825fe41ebd93f406cdc92bff459f
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Secure Preferences

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                            • Size 17KB
                                            • SHA256 5ab444414a02d4891c7cbb4db3735bec720facb3265bdedc915a68f6beef1cd9
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            temp-index

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\temp-index
                                            • Size 120B
                                            • SHA256 a91631cbdff00df99b0be0cb9f2fba5c01037fec76b00d727a8db98955adefee
                                            • MD5 SHA1 SHA512 TLSH

                                            the-real-index~RFe58d5ba.TMP

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe58d5ba.TMP
                                            • Size 96B
                                            • SHA256 388e5de9bf53f0022f42eb16fa8a8711e3857ca5c3eb827a5228ef58f8797190
                                            • MD5 SHA1 SHA512 TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 193KB
                                            • SHA256 50a08da79a3de77d568d1e420e19747edb0d86325b3c2a09de8184ea5d3f4aa2
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 193KB
                                            • SHA256 6d33b6eb64c25706471713c28a0cd3de00504c91dc5363b7139b776808984683
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 194KB
                                            • SHA256 a066ff0caadff27366b60a74eec642760de81b2b641824acb08ec58117a261f7
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            Local State

                                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                            • Size 90KB
                                            • SHA256 6f36a9c16f84c14e0cc3b3a36add708bd64d1d99358f1b0b0441aff2f237a673
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            ExecPolar.zip

                                            • Path C:\Users\Admin\Downloads\ExecPolar.zip
                                            • Size 2.3MB
                                            • SHA256 b742ffdc14c6f3ca4852b7c42d04ee337994458375da100a057e4a41ab27cae2
                                            • MD5 SHA1 SHA512 SSDEEP TLSH

                                            ExecPolar.zip:Zone.Identifier

                                            • Path C:\Users\Admin\Downloads\ExecPolar.zip:Zone.Identifier
                                            • Size 123B
                                            • SHA256 aed2532e59ab151a006cd2b431f1408a382f17163918e71e4bbea849e729ff3e
                                            • MD5 SHA1 SHA512 TLSH

                                            memory/1544-125-0x00007FF60E1F0000-0x00007FF60E8AA000-memory.dmp

                                            memory/1812-15-0x000002AA16310000-0x000002AA1636D000-memory.dmp

                                            memory/3264-107-0x000001CC2C090000-0x000001CC2C0ED000-memory.dmp

                                            memory/5020-0-0x00007FF698430000-0x00007FF698AEA000-memory.dmp

                                            memory/5020-1-0x00007FF698430000-0x00007FF698AEA000-memory.dmp