Analysis
- max time kernel
10s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
03/08/2026, 09:15
Static task
static1
Behavioral task
behavioral1
Sample
extension-fix-1JQH0T.hta
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
extension-fix-1JQH0T.hta
Resource
win11ltsc2024-20260709-en
General
- Target extension-fix-1JQH0T.hta
- Size 3KB
- Sample260803-k78t8ashld
- SHA256 99e150272b9f27c01aa370f0265957c60cb4c9de6b61856a3bfb299a5ef2ab64
- MD5 a616ade773d363259c2b77f866468a27
- SHA1 6c2981e69ca7ab5c2ebe52f8a5d944dcb8addc8a
- SHA512 a8e85cee075625e39061109722ae92ffd25b6f693dfee2e15545f76c0b40d25987515cd63e83370d3f03db40e17798a1e6878e28c7c45a45e3d931f0bf108219
- TLSH T1E761D9F7B94A92C6BD3299AB1E2F8089408417462362D4FCF3D7EC01AF89F4D4478398
- MD5 SHA1 SHA512 TLSH
Malware Config
Signatures
- Badlisted process makes network request 3 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 5 4936 mshta.exe 7 4936 mshta.exe 8 4936 mshta.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 808 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mshta.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 808 cmd.exe 4216 PING.EXE -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe - Modifies registry class 17 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheVersion = "1" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheLimit = "1" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheVersion = "1" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheVersion = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheLimit = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Extensible Cache rundll32.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 4216 PING.EXE - Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 8 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) - Suspicious use of FindShellTrayWindow 5 IoCs
pid Process 1888 rundll32.exe 4232 rundll32.exe 5328 rundll32.exe 5364 rundll32.exe 4936 mshta.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4936 wrote to memory of 5328 4936 mshta.exe 90 PID 4936 wrote to memory of 4232 4936 mshta.exe 91 PID 4936 wrote to memory of 1888 4936 mshta.exe 92 PID 4936 wrote to memory of 5364 4936 mshta.exe 93 PID 4936 wrote to memory of 4600 4936 mshta.exe 94 PID 5364 wrote to memory of 4180 5364 rundll32.exe 96 PID 1888 wrote to memory of 3892 1888 rundll32.exe 97 - Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 4600 attrib.exe
Processes
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C:\Windows\SysWOW64\mshta.exeC:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\extension-fix-1JQH0T.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}1⤵
- Badlisted process makes network request
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 82⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
PID:5328 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:000000003⤵PID:2424
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 82⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
PID:4232 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:000000003⤵PID:2188
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 82⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:000000003⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:3892
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 82⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5364 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:000000003⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:4180
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C:\Windows\SysWOW64\attrib.exe"C:\Windows\System32\attrib.exe" +h +s "C:\opjsqnjs\"2⤵
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:4600
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C:\opjsqnjs\opjsqnjs.exe"C:\opjsqnjs\opjsqnjs.exe" C:\opjsqnjs\opjsqnjs2⤵PID:4964
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 82⤵PID:6116
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:000000003⤵PID:4220
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping -n 300 -w 1000 127.0.0.1 >nul2⤵
- Executes a command shell one-liner
- System Network Configuration Discovery: Internet Connection Discovery
PID:808 -
C:\Windows\SysWOW64\PING.EXEping -n 300 -w 1000 127.0.0.13⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4216
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Network
MITRE ATT&CK Enterprise v16
Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
- Size 1KB
- SHA256 63b14543360f5e89942ea8d5113526e64fbc71c1207328f0136b3a495d921dd0
- MD5 adac67e1d2da2d706db151c2db316b2d
- SHA1 5f6e301d23e33132209707945d0e740d5bcb8996
- SHA512 9371b62ac25c6ea8fb6fca19ac47b873ced9b3d0cb45ce4de5ea974b93c12684c65aa23c7d83331c77502853258a08dff73ce5e3fb6170bd3ab1c5b3283a86a9
- TLSH T1DE31AD4EA2153027D5427F72D8CEBE83CEB1364667CAD46B18046E4229AAFC25FC80C9
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
- Size 528B
- SHA256 d2bb091268ade68ad8121d2184d0fbce128070156304bd4de312e6fbd267409c
- MD5 047f3e9d21d6b325d592b1959e4362e6
- SHA1 5aeef5f985171cd69da397fd039854e44ebecdd2
- SHA512 4523896ed4a03afafd2075d8c8947236d34fe1da2c246a3f90c2be2a5c151c18bc58a6cde5a209abb8e06e80f662e24d0149640b3e98e8a872bfa8a04ef592a4
- TLSH T147F0500990082252C855FF55DFD6AC97DC76336136E595036D458E410C12F96AF950F5
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
- Size 174B
- SHA256 64a11c1e9a6fd4134a16b98df0630100b18e0386667dc91204a4679ea1e2f032
- MD5 39ca7bcff47d1d966e4f19babd68a464
- SHA1 555ddaf51336537f3e622d1a4a1a33ca0b165a56
- SHA512 d5abf7bca67740717cd1d1c38241a8bb1459b1c4487f7490c3df118a466e306997d5a9f5b2c7392cd97b46b8df23cdb33db3fdb4d0242f29b89f2dfd3f8dac9f
- TLSH T12DC09B0437B54255F1344D7F165753118BFAE505CE8183540F70525DC61DB429CF5D06
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
- Size 170B
- SHA256 21398f0a2cb7c2e2a61f07fb954617dfb53efe4ba20fe31e9774a00854cf0f27
- MD5 dcaa7e2a101cc2d9881a38a5aa08f84b
- SHA1 fbe1ee8dc2eeb3523ec216bc673288598759d92d
- SHA512 49bc693558e94d33bc783fbce25de44388298903296cf60a1a4230ee6c0382b8dd54117507d2a410de3de762c60a74aef820513a8b67faafc27f3b7cca7f9bea
- TLSH T174C09B14736D4716F10D113D79E6160417B58105F5CAC3144B7C113885196440C71D05
- MD5 SHA1 SHA512 TLSH
- Path C:\opjsqnjs\a1.zip
- Size 494KB
- SHA256 a034b7805e5725e81590c507c36c9e7cf510d99689dee7ab6234bfddb71b7c8c
- MD5 9df4d68df0522f8ba8bee00352e1a8de
- SHA1 5db457baefadc4ebde54b8e1eb5ddaba6c3572f2
- SHA512 8eb152891951c30b7b499e6509dcd1cced5f287396e6e8b7c6dc3c3b46b1c47ea5ec8df89b759e3c178db274355f5d5a80c0036ee2f9f7873c623e6599fd40e9
- SSDEEP 12288:ExU7hblQnL+/dh+Gez4yOGtBan225oCWp8SrI6:Eq7hblmK/dgGeVlk22aCarI6
- TLSH T1C4B4231C22C4BD086D3D97FB58539F7405EA6A9E14B8024CE18B73C4ABCEF815F829E5
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\opjsqnjs\a2.zip
- Size 1.3MB
- SHA256 1671e1b949c0df1ec02f6470b5a2f2cae8979de913b5b2a423b94d29e30d443a
- MD5 18b45b886e551bbde0cc421c8d84c862
- SHA1 0c7b14c892ddf0daebddb63d62c7c2e980332f98
- SHA512 02b1c1573d477989577e84ab31eb4aee5694f179c33c1847e149377168cacb2f09956cc8ff233f93691cba2a8b8b29b69522451f4c5c9f8cfb39d803d1f0cb5a
- SSDEEP 24576:sAuYNwua6NduNqjRt1pSdu4E0mcKptG6lgVT0kQkmSp9QpDH1tMlyam:sAuSw7Ku4xpSd7m7BlgVQmvQJH1t7
- TLSH T120553355B7EDDF14E07D52A1C9C14ED42EE304ADBFE8CC081AC84788D5D236DA948EBA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\opjsqnjs\a3.zip
- Size 2KB
- SHA256 b7601505b60a6a8e51da5eee5ba0f02819c2e8acf6799527994b6f65309cb2bb
- MD5 850fb8686edbd87c7689c6d4e1dc443f
- SHA1 a8488d0224ccd42384529f6aca88eab043ea4bd5
- SHA512 e290d03459c8738efbbff953a91fcb7686760b2243e35632d0e17a1a0bfb2882ad313ba4688dbabf0274f153a523751f8117e68b49790fb29aaa776358f47318
- TLSH T1A2413CE88D6CBD90D6CEB9349D146470593B3EC489C061A80EBEEC441130298DB2E42C
- MD5 SHA1 SHA512 TLSH
- Path C:\opjsqnjs\opjsqnjs
- Size 1.3MB
- SHA256 30af0a4b9b7c7d8cf41c169be3d51c03d9dabd0c18ed699b31850b618b5db55e
- MD5 3acd16edf0a4a2c6ece5bdb47bbfe252
- SHA1 f2c68a96d6233778d1900a859ff089284c1672f2
- SHA512 db484aa924751393a2bb72b482dea0882e2ea077a48f24e9535c1dd4fb49491779832533a50b509770220503952dc01253e62205b3a376ee4660d7c7f3348172
- SSDEEP 24576:wAsYBwwc6NnutqPLth3SduIE0mcKppG2RgzTckokmGpVQpHH3tghysG:wAsiw7WuYn3Sdpm7PRgzIYrQhH3tb
- TLSH T121553355B7EDDF04E0BD51A1D9C14ED42EE304ADBFE8CC081AC84788D5D236DA948EBA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\opjsqnjs\opjsqnjs.exe
- Size 957KB
- SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
- MD5 279274f8a137bf31425a9c2c14444b66
- SHA1 6f7f971406854309d94139aa70bdc772308aff52
- SHA512 2e69e99ae2c2f0c3361351853ecfcd1982ea542ef8aff9314e991642f106a87d45479f21f53367ad93b29ce9d98b60706ff9554a9c9d2a793fbed1589b90a85d
- SSDEEP 24576:8SmEH7kpRArkvBz1oxovFDVeAj2HoB3a33rfBH:827kpRA4R1oGDVeQXsrf
- TLSH T11B259E0373D18022FF93A9721E5FE72656BC6D2A0323956F13D81EB9F9305B14A1E672
- MD5 SHA1 SHA512 SSDEEP TLSH