Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 04:23

General

  • Target
    2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
  • Size 6.2MB
  • Sample260522-ezzzfshs4s
  • SHA256 1bc8e3775f9c71c87c94999a648f1f377c50a1aff979f51c6bc96c2d31576345
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Creates new service(s) 2 TTPs
  • Executes dropped EXE 3 IoCs
  • Modifies service settings 1 TTPs

    Alters the configuration of existing services.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 17 IoCs
  • Launches sc.exe 6 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies data under HKEY_USERS 8 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 19 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2124
    • \??\c:\Windows\System32\cmstp.exe
      "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\yPmQzCefnNGeJWeM.inf
      2⤵
        PID:3248
      • C:\Windows\system32\schtasks.exe
        "schtasks" /create /tn WindowsDefender /tr C:\Users\Admin\AppData\Roaming\defender.exe /sc onlogon /rl highest /f
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4780
      • C:\Windows\system32\sc.exe
        "sc" create WindowsDefender binPath= C:\Users\Admin\AppData\Roaming\defender.exe start= auto
        2⤵
        • Launches sc.exe
        PID:4000
      • C:\Windows\system32\sc.exe
        "sc" start WindowsDefender
        2⤵
        • Launches sc.exe
        PID:1952
      • \??\c:\Windows\System32\cmstp.exe
        "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\5kEkMbYjhsCUb4eu.inf
        2⤵
          PID:3728
      • C:\Users\Admin\AppData\Roaming\defender.exe
        C:\Users\Admin\AppData\Roaming\defender.exe
        1⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:3440
        • \??\c:\Windows\System32\cmstp.exe
          "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\DFVB3aLaH86vMfpi.inf
          2⤵
            PID:4060
          • C:\Windows\system32\schtasks.exe
            "schtasks" /create /tn WindowsDefender /tr C:\Users\Admin\AppData\Roaming\defender.exe /sc onlogon /rl highest /f
            2⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1880
          • C:\Windows\system32\sc.exe
            "sc" create WindowsDefender binPath= C:\Users\Admin\AppData\Roaming\defender.exe start= auto
            2⤵
            • Launches sc.exe
            PID:5080
          • C:\Windows\system32\sc.exe
            "sc" start WindowsDefender
            2⤵
            • Launches sc.exe
            PID:1548
          • \??\c:\Windows\System32\cmstp.exe
            "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\coP5JMOjjbWDgcEA.inf
            2⤵
              PID:1524
          • C:\Users\Admin\AppData\Roaming\defender.exe
            C:\Users\Admin\AppData\Roaming\defender.exe
            1⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious use of WriteProcessMemory
            PID:4864
            • \??\c:\Windows\System32\cmstp.exe
              "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\9dL881BYIqmOrxa6.inf
              2⤵
              • Drops file in System32 directory
              • Modifies data under HKEY_USERS
              PID:3628
            • C:\Windows\system32\schtasks.exe
              "schtasks" /create /tn WindowsDefender /tr C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe /sc onlogon /rl highest /f
              2⤵
              • Scheduled Task/Job: Scheduled Task
              PID:1924
            • C:\Windows\system32\sc.exe
              "sc" create WindowsDefender binPath= C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe start= auto
              2⤵
              • Launches sc.exe
              PID:400
            • C:\Windows\system32\sc.exe
              "sc" start WindowsDefender
              2⤵
              • Launches sc.exe
              PID:4032
            • \??\c:\Windows\System32\cmstp.exe
              "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\agQeRjLqTBFBB9GI.inf
              2⤵
                PID:228
            • C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
              C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:4476
              • \??\c:\Windows\System32\cmstp.exe
                "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\h7Hq1ivgxe5v9IfF.inf
                2⤵
                  PID:5084
                • \??\c:\Windows\System32\cmstp.exe
                  "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\i8NeoJ2U8OKKSmDM.inf
                  2⤵
                    PID:3296
                • C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe
                  C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:4852
                  • \??\c:\Windows\System32\cmstp.exe
                    "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\ybH4plxxBJwRo0uk.inf
                    2⤵
                      PID:2404
                    • \??\c:\Windows\System32\cmstp.exe
                      "c:\Windows\System32\cmstp.exe" /au c:\windows\temp\HMXrXtp9gXCuInPI.inf
                      2⤵
                        PID:5112

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

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                          Downloads

                          dir.sqlite3

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\cache\dir.sqlite3
                          • Size 100KB
                          • SHA256 73c686eea1015a8574c2d6c9e88df8829718f24412156d37fb5a15ec17ae0dd4
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          con_microdesc_sha3-256-0e821c4310fc3aa9b648832113fc9b15815ffedeb8afc4e24e31fe6ef2816312

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\cache\dir_blobs\con_microdesc_sha3-256-0e821c4310fc3aa9b648832113fc9b15815ffedeb8afc4e24e31fe6ef2816312
                          • Size 3.4MB
                          • SHA256 2ea998b398ce6d99df64f646aa053c4f11fba1171544e7773fc6835baf718cea
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          circuit_timeouts.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\circuit_timeouts.json
                          • Size 419B
                          • SHA256 72b811d6f284457857648eec8316832e9c9860d71fa6e3b9ea29a2f0105e0430
                          • MD5 SHA1 SHA512 TLSH

                          circuit_timeouts.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\circuit_timeouts.json
                          • Size 65B
                          • SHA256 9dbe12675e515f32f07aea11cc9f8bea69b3f143b3d825d98ca1ef41b2988ee7
                          • MD5 SHA1 SHA512 TLSH

                          guards.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\guards.json
                          • Size 121B
                          • SHA256 a2c2287ea6aa4ba07c2c1ab66268828c011a5d9cacef6dba1179a6bd196c2c3d
                          • MD5 SHA1 SHA512 TLSH

                          guards.json

                          • Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\guards.json
                          • Size 9KB
                          • SHA256 eb292e5c2061d185ecd246eb318c25316d6fa79b451f8eef8a65d1bfd2dbd826
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          defender.exe

                          • Path C:\Users\Admin\AppData\Roaming\defender.exe
                          • Size 6.2MB
                          • SHA256 1bc8e3775f9c71c87c94999a648f1f377c50a1aff979f51c6bc96c2d31576345
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          DFVB3aLaH86vMfpi.inf

                          • Path \??\c:\windows\temp\DFVB3aLaH86vMfpi.inf
                          • Size 606B
                          • SHA256 335cb3c398f27c39abb5002596bc5189cabb5282ccf8ceda50dc8ca7dd4ea96b
                          • MD5 SHA1 SHA512 TLSH

                          yPmQzCefnNGeJWeM.inf

                          • Path \??\c:\windows\temp\yPmQzCefnNGeJWeM.inf
                          • Size 671B
                          • SHA256 e055e3fa9cd24b91221a5b8a8f890de5a111bd5ee26b220d531864c130d266d8
                          • MD5 SHA1 SHA512 TLSH

                          ybH4plxxBJwRo0uk.inf

                          • Path \??\c:\windows\temp\ybH4plxxBJwRo0uk.inf
                          • Size 632B
                          • SHA256 0ec08cda0760d14a3bc3d0cf818876fd90ac27066d86cd2c7fe6a606a5acf761
                          • MD5 SHA1 SHA512 TLSH

                          memory/2124-115-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/2124-125-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/2124-107-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/2124-103-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/2124-129-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/2124-111-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/2124-75-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/2124-23-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/3440-126-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-76-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-28-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-72-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-104-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-120-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-112-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-130-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/3440-108-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp

                          memory/4476-109-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-123-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-131-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-73-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-113-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-127-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-30-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-105-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4476-101-0x00007FF73F280000-0x00007FF73F8B7000-memory.dmp

                          memory/4852-102-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-110-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-124-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-74-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-114-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-128-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-106-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-67-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4852-31-0x00007FF6B0580000-0x00007FF6B0BB7000-memory.dmp

                          memory/4864-29-0x00007FF6A78D0000-0x00007FF6A7F07000-memory.dmp