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
Static task
static1
Behavioral task
behavioral1
Sample
2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
Resource
win11-20260513-en
General
- Target 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe
- Size 6.2MB
- Sample260522-ezzzfshs4s
- SHA256 1bc8e3775f9c71c87c94999a648f1f377c50a1aff979f51c6bc96c2d31576345
- MD5 e487c3bf87196e9b3ec9e656bed06197
- SHA1 9792ed8a9cf98266a1dcc8ade30dc123b3b08656
- SHA512 d19c3b98dbc80fcad499ba11438a53feb1eb2fc14a47e0c870057f77b7bad019e3d11979d078aa02c8657b3e34ce2128d529cd6a47bb04e090a48678210ac489
- SSDEEP 49152:SQLFnB3N4W4ROFkoVFuPQCQpINjWEFFIdjEfii7nbb+KnCDBzNH5diEs3k9quZnt:FF0fOJralAGbeljs0Jw05ZR+bD
- TLSH T14D665A03F2A581E8C0AEC174835AA733FA32B8895535B65F5BE0CB212F25F509F1E759
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Creates new service(s) 2 TTPs
- Executes dropped EXE 3 IoCs
pid Process 3440 defender.exe 4864 defender.exe 4852 defender.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2654269261-3199571979-4291878722-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Users\\Admin\\AppData\\Roaming\\defender.exe" 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe Set value (str) \REGISTRY\USER\S-1-5-21-2654269261-3199571979-4291878722-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Users\\Admin\\AppData\\Roaming\\defender.exe" defender.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_768.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_wide.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_wide_alternate.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe defender.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_32.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_256.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_2560.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_1920.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_exif.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_custom_stream.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_16.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_48.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_1280.db cmstp.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_sr.db cmstp.exe File created C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe defender.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\iconcache_96.db cmstp.exe - Launches sc.exe 6 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4000 sc.exe 1952 sc.exe 5080 sc.exe 400 sc.exe 1548 sc.exe 4032 sc.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies data under HKEY_USERS 8 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Windows\\system32\\config\\systemprofile\\AppData\\Roaming\\defender.exe" defender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Network\Network Connections cmstp.exe Key created \REGISTRY\USER\.DEFAULT\Software cmstp.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft cmstp.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT cmstp.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion cmstp.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Network cmstp.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run defender.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4780 schtasks.exe 1880 schtasks.exe 1924 schtasks.exe - Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 2124 wrote to memory of 3248 2124 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe 80 PID 2124 wrote to memory of 4780 2124 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe 82 PID 2124 wrote to memory of 4000 2124 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe 83 PID 3440 wrote to memory of 4060 3440 defender.exe 88 PID 2124 wrote to memory of 1952 2124 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe 89 PID 2124 wrote to memory of 3728 2124 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe 90 PID 4864 wrote to memory of 3628 4864 defender.exe 93 PID 3440 wrote to memory of 1880 3440 defender.exe 95 PID 3440 wrote to memory of 5080 3440 defender.exe 96 PID 4864 wrote to memory of 1924 4864 defender.exe 99 PID 4864 wrote to memory of 400 4864 defender.exe 100 PID 4476 wrote to memory of 5084 4476 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe 105 PID 4852 wrote to memory of 2404 4852 defender.exe 107 PID 3440 wrote to memory of 1548 3440 defender.exe 108 PID 3440 wrote to memory of 1524 3440 defender.exe 109 PID 4864 wrote to memory of 4032 4864 defender.exe 111 PID 4864 wrote to memory of 228 4864 defender.exe 112 PID 4476 wrote to memory of 3296 4476 2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe 114 PID 4852 wrote to memory of 5112 4852 defender.exe 115 - 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
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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.inf2⤵PID:3248
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C:\Windows\system32\schtasks.exe"schtasks" /create /tn WindowsDefender /tr C:\Users\Admin\AppData\Roaming\defender.exe /sc onlogon /rl highest /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4780
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C:\Windows\system32\sc.exe"sc" create WindowsDefender binPath= C:\Users\Admin\AppData\Roaming\defender.exe start= auto2⤵
- Launches sc.exe
PID:4000
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C:\Windows\system32\sc.exe"sc" start WindowsDefender2⤵
- Launches sc.exe
PID:1952
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\??\c:\Windows\System32\cmstp.exe"c:\Windows\System32\cmstp.exe" /au c:\windows\temp\5kEkMbYjhsCUb4eu.inf2⤵PID:3728
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C:\Users\Admin\AppData\Roaming\defender.exeC:\Users\Admin\AppData\Roaming\defender.exe1⤵
- 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.inf2⤵PID:4060
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C:\Windows\system32\schtasks.exe"schtasks" /create /tn WindowsDefender /tr C:\Users\Admin\AppData\Roaming\defender.exe /sc onlogon /rl highest /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:1880
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C:\Windows\system32\sc.exe"sc" create WindowsDefender binPath= C:\Users\Admin\AppData\Roaming\defender.exe start= auto2⤵
- Launches sc.exe
PID:5080
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C:\Windows\system32\sc.exe"sc" start WindowsDefender2⤵
- Launches sc.exe
PID:1548
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\??\c:\Windows\System32\cmstp.exe"c:\Windows\System32\cmstp.exe" /au c:\windows\temp\coP5JMOjjbWDgcEA.inf2⤵PID:1524
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C:\Users\Admin\AppData\Roaming\defender.exeC:\Users\Admin\AppData\Roaming\defender.exe1⤵
- 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.inf2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3628
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C:\Windows\system32\schtasks.exe"schtasks" /create /tn WindowsDefender /tr C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe /sc onlogon /rl highest /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:1924
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C:\Windows\system32\sc.exe"sc" create WindowsDefender binPath= C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe start= auto2⤵
- Launches sc.exe
PID:400
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C:\Windows\system32\sc.exe"sc" start WindowsDefender2⤵
- Launches sc.exe
PID:4032
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\??\c:\Windows\System32\cmstp.exe"c:\Windows\System32\cmstp.exe" /au c:\windows\temp\agQeRjLqTBFBB9GI.inf2⤵PID:228
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C:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exeC:\Users\Admin\AppData\Local\Temp\2026-05-22_e487c3bf87196e9b3ec9e656bed06197_akira_glassworm_quasar-rat.exe1⤵
- Suspicious use of WriteProcessMemory
PID:4476 -
\??\c:\Windows\System32\cmstp.exe"c:\Windows\System32\cmstp.exe" /au c:\windows\temp\h7Hq1ivgxe5v9IfF.inf2⤵PID:5084
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\??\c:\Windows\System32\cmstp.exe"c:\Windows\System32\cmstp.exe" /au c:\windows\temp\i8NeoJ2U8OKKSmDM.inf2⤵PID:3296
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C:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exeC:\Windows\system32\config\systemprofile\AppData\Roaming\defender.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4852 -
\??\c:\Windows\System32\cmstp.exe"c:\Windows\System32\cmstp.exe" /au c:\windows\temp\ybH4plxxBJwRo0uk.inf2⤵PID:2404
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\??\c:\Windows\System32\cmstp.exe"c:\Windows\System32\cmstp.exe" /au c:\windows\temp\HMXrXtp9gXCuInPI.inf2⤵PID:5112
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Network
MITRE ATT&CK Enterprise v16
Execution
Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\torproject\Arti\cache\dir.sqlite3
- Size 100KB
- SHA256 73c686eea1015a8574c2d6c9e88df8829718f24412156d37fb5a15ec17ae0dd4
- MD5 d09bc8afca65cedb2c91501e2c7a24e2
- SHA1 17eabbd541944dcb6778eb2928a2952420fe64ab
- SHA512 a71ddc56e0110122fd301efd416a540c2a511a458b201193453c7be21d98a6657be81f7b87567311ea50ad5e633cf805ebf49b4d31e12205cddd08dbc0bfd75a
- SSDEEP 768:SAZAXO0BuRfhZgDs9kZux1b2M/tpEuv2bwygK:SFXOuuNhZgDsJrELkygK
- TLSH T1D3A37D6A0E643DF4C056C235EC9B16CAEF34536F17E6388032E0209BFF4395A966E579
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\torproject\Arti\cache\dir_blobs\con_microdesc_sha3-256-0e821c4310fc3aa9b648832113fc9b15815ffedeb8afc4e24e31fe6ef2816312
- Size 3.4MB
- SHA256 2ea998b398ce6d99df64f646aa053c4f11fba1171544e7773fc6835baf718cea
- MD5 9d7902be66836facf655552dfde300a8
- SHA1 3df54d088fbf8cb85487945df3a176e623448dbe
- SHA512 5f3a9c8b9a21d621880baa6a3af4641104698e3e3959dd868cf364747c2806cb1771e2ad635363ab5dc549510b1b275ec327bc752ef71963b2e4ddd9547f956a
- SSDEEP 12288:CmVPWvZsOeWYIvb6SjbNk44UP9MeODyBODOHvtDP6KrhuGICYTakhVaY+ZDowTDE:kvyOeRMpkxa9qnOVDP68uGM2kDI+jn7h
- TLSH T189F554EA97124EEED22609DBE510FB7BF33F2725C2486B94296F8CFA7205091751093D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\circuit_timeouts.json
- Size 419B
- SHA256 72b811d6f284457857648eec8316832e9c9860d71fa6e3b9ea29a2f0105e0430
- MD5 393d318526c61dbc012dcbcfd39f9416
- SHA1 3cb01166d228e8f0c644ac1a98eae25d1fdf0b8b
- SHA512 6d6375cf5ec96dd6fe95f240ff64897cc8522eb7b238fed49d36ec0d54601fc9619423fe9297c61c2ddb47ca2980ea60d8fefe93e7a5b781dbf0ed304e8f6c64
- TLSH T12AE00902880D0AAA948883B0802CC38E9608EA433C3DBF81363E0E042FBF14C4FBC428
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\circuit_timeouts.json
- Size 65B
- SHA256 9dbe12675e515f32f07aea11cc9f8bea69b3f143b3d825d98ca1ef41b2988ee7
- MD5 b2b738c82cdfbf56440274e03a50c9f8
- SHA1 5c1a0274017a666f069980c3c5a6220026cd3336
- SHA512 d4c9dbca06de019b7ea2519e24ad603d6283c3f0aa7f9d97b9b014861f54d9cfb4f6a295b48d6bf69f2ee122668709df175afcf8f90b0e7e67a3e643f28e84e8
- TLSH T103A02220C0A200B3E0C023300222C3C88F20EF0232A23208300F0C0C02883A8033A222
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\guards.json
- Size 121B
- SHA256 a2c2287ea6aa4ba07c2c1ab66268828c011a5d9cacef6dba1179a6bd196c2c3d
- MD5 bd45eb55dc8a46aa313e7f68dd9cf953
- SHA1 c6b7653ca38370cd639678a925802d1cd8a282eb
- SHA512 058ffd60fa2aa2ab14022c0628d72a47440ad99bdfc82f8e6a4e303febde74514bda8e3064c015f57c63760462ca1193ee858040ce85cf8182d638d888e9cb71
- TLSH T1C3B09276A87B4C1611C0562A88382283E30128F3658CBC2E34CF450C0B4D0349DB5188
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\torproject\Arti\data\state\guards.json
- Size 9KB
- SHA256 eb292e5c2061d185ecd246eb318c25316d6fa79b451f8eef8a65d1bfd2dbd826
- MD5 00c320b6fe8de714fd0601b6433ffafe
- SHA1 e35dcf313460bd0c8fee4bb5016e8a1186b04f1c
- SHA512 23d5986c451888bb6aeb9fa4c1997b93f669447345be6196548297f4202797768cceb64e46f488df333338460d1ea9b89345ed97976c9b839571eec5ad7ea0c7
- SSDEEP 192:ayvlHIH+HzUHpHnHzD2yHbH4HxHqSHZHZHecHMaHyVHtHteHuoHAZHuiivc2:hvloeTUJHd7YRt55fsaCNNeOowGvF
- TLSH T18E228C54C87A2CC316DD552E887A52C2D325928B7EAD3C243B4E569C0F4D1ED0B3A7AF
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\defender.exe
- Size 6.2MB
- SHA256 1bc8e3775f9c71c87c94999a648f1f377c50a1aff979f51c6bc96c2d31576345
- MD5 e487c3bf87196e9b3ec9e656bed06197
- SHA1 9792ed8a9cf98266a1dcc8ade30dc123b3b08656
- SHA512 d19c3b98dbc80fcad499ba11438a53feb1eb2fc14a47e0c870057f77b7bad019e3d11979d078aa02c8657b3e34ce2128d529cd6a47bb04e090a48678210ac489
- SSDEEP 49152:SQLFnB3N4W4ROFkoVFuPQCQpINjWEFFIdjEfii7nbb+KnCDBzNH5diEs3k9quZnt:FF0fOJralAGbeljs0Jw05ZR+bD
- TLSH T14D665A03F2A581E8C0AEC174835AA733FA32B8895535B65F5BE0CB212F25F509F1E759
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\c:\windows\temp\DFVB3aLaH86vMfpi.inf
- Size 606B
- SHA256 335cb3c398f27c39abb5002596bc5189cabb5282ccf8ceda50dc8ca7dd4ea96b
- MD5 2a7592f3d093dd5ac173461786634a2d
- SHA1 256f9221e9d1393ab928dd28677be5f6382708d4
- SHA512 a8ba906ce4d32add222f6551ee6ac2fbd504ae221b7c81a9d66163fd25ac8a57e9c74c98657e8ff7bc297765c6d76a914f5609a4a954d61fefbef543c58695ac
- TLSH T190F0020C0CBF6002691A272029AB05609BF3420035845600F6F5AC102A7E74D82CF32F
- MD5 SHA1 SHA512 TLSH
- Path \??\c:\windows\temp\yPmQzCefnNGeJWeM.inf
- Size 671B
- SHA256 e055e3fa9cd24b91221a5b8a8f890de5a111bd5ee26b220d531864c130d266d8
- MD5 66283966d07f70a9ce3357c0f696ab3c
- SHA1 fd37f8d189026118fbc17763e84eea5116a238e7
- SHA512 229132f3ed4f6ac125de754f412bfbf5ef96864508f9876fb1dc4d4b4456352d30d5e63375ddd9034ad944cfacb6233a2e878e120906a384cbd9bec745729a31
- TLSH T10601281C0CBBB002681A7710559705A0DFB2510436D15600F6F5DD141A7FB4F41CF36F
- MD5 SHA1 SHA512 TLSH
- Path \??\c:\windows\temp\ybH4plxxBJwRo0uk.inf
- Size 632B
- SHA256 0ec08cda0760d14a3bc3d0cf818876fd90ac27066d86cd2c7fe6a606a5acf761
- MD5 fa7aa1006b01db5066d6724abf201a82
- SHA1 8d797d45977255a57570b49663dd380e522025ab
- SHA512 25caab247e6290634ff122ef9b7c358e4f1ddd1cd2b074fd159bcccfe0da9c99721a7b0572db2ddfe1acd0fde370b06e57fc97096af318b0b2e70a68a416b36a
- TLSH T1EFF0DD0C0DBF6052692A6B20659B0A60AFB6A21135804600B5F5AC652A6E74E839BB7F
- MD5 SHA1 SHA512 TLSH