Resubmissions

17/04/2026, 04:32

260417-e5xraaft4q5

17/04/2026, 04:27

260417-e28dlsat915

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/04/2026, 04:27

General

  • Target
    ExecPolar.exe
  • Size 1.5MB
  • Sample260417-e28dlsat91
  • 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.

  • 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.

  • 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
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 42 IoCs
  • Suspicious use of SendNotifyMessage 32 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:4340
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • 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 SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1344
      • 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,0x120,0xf4,0x124,0x7fffe9ebc728,0x7fffe9ebc734,0x7fffe9ebc740
        2⤵
          PID:2308
        • 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=1600,i,13943458258734536378,7103923827204918381,524288 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=2176 /prefetch:3
          2⤵
          • System Time Discovery
          PID:5104
        • 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=1712,i,17952648561132969398,11886489588626108533,262144 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=2084 /prefetch:2
          2⤵
            PID:1092
          • 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=2352,i,11180715405718269328,2491646937039782540,524288 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=2444 /prefetch:8
            2⤵
              PID:2036
            • 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,5506773170201991209,9024817860150896118,2097152 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3276 /prefetch:1
              2⤵
                PID:3996
              • 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=3464,i,15657212603276341177,142071235696626483,2097152 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3480 /prefetch:1
                2⤵
                  PID:4800
                • 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=4152,i,4222083436637260571,6451937506397095664,2097152 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=4168 /prefetch:2
                  2⤵
                    PID:4476
                  • 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=4760,i,4592198877357797330,9794837643247343991,2097152 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=4644 /prefetch:1
                    2⤵
                      PID:1544
                    • 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=5656,i,15829540752401992753,15612715419211254672,524288 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=5660 /prefetch:8
                      2⤵
                        PID:1020
                      • 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=5788,i,7231574403834429454,13166483493955657673,2097152 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=5792 /prefetch:1
                        2⤵
                          PID:4832
                        • 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=4852,i,12213324584216445086,1809808624484589323,2097152 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=5908 /prefetch:1
                          2⤵
                            PID:4592
                          • 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=3288,i,2839577637803860513,15217712394985583991,524288 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3588 /prefetch:8
                            2⤵
                              PID:3756
                            • 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=3388,i,13005223982593276140,1628554269125567228,524288 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3352 /prefetch:8
                              2⤵
                                PID:1160
                              • 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=3376,i,12836488360207975345,11483153577564975324,524288 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3332 /prefetch:8
                                2⤵
                                  PID:540
                                • 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=4180,i,14651160441532244681,11172209737304472340,524288 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=4204 /prefetch:8
                                  2⤵
                                    PID:1740
                                  • 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=1148,i,15531352741394453204,4526915683152179574,262144 --field-trial-handle=2092,i,12869504805645153256,6711564138645232822,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3488 /prefetch:8
                                    2⤵
                                    • Suspicious behavior: EnumeratesProcesses
                                    PID:1876
                                • 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:1008
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                    1⤵
                                      PID:4212
                                    • C:\Windows\System32\rundll32.exe
                                      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                      1⤵
                                        PID:3396
                                      • C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ExecPolar.exe
                                        "C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ExecPolar.exe"
                                        1⤵
                                          PID:3400
                                        • C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ExecPolar.exe
                                          "C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ExecPolar.exe"
                                          1⤵
                                            PID:1936
                                          • C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ByfronBypass.exe
                                            "C:\Users\Admin\Downloads\ExecPolar\ExecPolar - Copy\ByfronBypass.exe"
                                            1⤵
                                              PID:3244

                                            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 1d0c789064c41ccfa324e9a537b0c7d5da2c7f7eb7ff717f951f36593e6e947b
                                                  • 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 6e55f100dbdb554451425d174639c983c6696788b4298a257cd825b5ea4fd4b0
                                                  • 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 12KB
                                                  • SHA256 c0c8b66ea71255bac0c3e042d63744e95930b307b9757257a476d29b80c0440d
                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                  • Size 12KB
                                                  • SHA256 d4daadd08dfe19174b8901e424c9b55948e23c51f2529915afe112b4d50ab999
                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                  Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                                  • Size 13KB
                                                  • SHA256 ba6241629c2e571dc4ab536b32e11ad8971523beb1bca2b62d648c639fdac092
                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                  Secure Preferences

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                                  • Size 17KB
                                                  • SHA256 9c430f8c17feb865c008f25efcb04058f5ca91ec3e589c4f1ad8c3f157cbd990
                                                  • 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 b09769f29393e638191c31ca43757ccd3e856d5ff8dfe609af5a72859d68b6ae
                                                  • MD5 SHA1 SHA512 TLSH

                                                  the-real-index~RFe58a330.TMP

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe58a330.TMP
                                                  • Size 96B
                                                  • SHA256 41169ef1e1a12bb673aa3362ae9774ff79b1b42877d1f74487b3160c169a9925
                                                  • MD5 SHA1 SHA512 TLSH

                                                  Local State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                  • Size 194KB
                                                  • SHA256 4684266f7a5febb006c33e19556d980d36c7d330550821a01d1bfc64c0338ece
                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                  Local State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                  • Size 89KB
                                                  • SHA256 878350828cd2a142f582589d19690819eda27076e46c94c17bb47625fc7d8a92
                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                  Local State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                  • Size 193KB
                                                  • SHA256 36ab47628a8f0aa6d943afa6b558751c219c02ed5af57820d911a48b956edd2d
                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                  Local State

                                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                                  • Size 193KB
                                                  • SHA256 ba743c59ed71441184cedb465a8bb67127ae6ae2770d5bdf10e89736df94e63c
                                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                                  ExecPolar.zip

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

                                                  memory/3244-140-0x00007FF64A5E0000-0x00007FF64A763000-memory.dmp

                                                  memory/3244-141-0x0000022727620000-0x00000227276ED000-memory.dmp

                                                  memory/3396-105-0x0000023CD3340000-0x0000023CD340D000-memory.dmp

                                                  memory/3400-136-0x00007FF6A75A0000-0x00007FF6A7C5A000-memory.dmp

                                                  memory/4340-1-0x00007FF6B17F0000-0x00007FF6B1EAA000-memory.dmp

                                                  memory/4340-0-0x00007FF6B17F0000-0x00007FF6B1EAA000-memory.dmp