Analysis
- max time kernel
12s - max time network
144s - 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, 11:18
Static task
static1
Behavioral task
behavioral1
Sample
Termo de Adesao-TSIU59.hta
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Termo de Adesao-TSIU59.hta
Resource
win11ltsc2024-20260709-en
General
- Target Termo de Adesao-TSIU59.hta
- Size 3KB
- Sample260803-nehn4swake
- SHA256 005805520dc9f399fe4501b0982b29b68b5f37e9a70e55ec74d3010bb9c19cb2
- MD5 364cac076295cbc5e46f58ea97b598a8
- SHA1 faa126cc1b84bd5e274ef043e1fa6c40bb3fc369
- SHA512 9353caf8136b272f0d43bbf4381b366574b6025a4be77fadc3ac59e04b1b4b7a56834c456a1dfa5a0efa6366942c4f5ad691955d4344b0447e9a4d90bad1b9d3
- TLSH T1B461ABF7B55A51C6BC329AAB1A6F51CE14A016021366E0B8E3E6DD01EF8DF594078398
- 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 5556 mshta.exe 7 5556 mshta.exe 9 5556 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 5688 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 10 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 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 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 rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mshta.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 5688 cmd.exe 2504 PING.EXE -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe - Modifies registry class 28 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheLimit = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\MuiCache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\MuiCache rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\MuiCache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Extensible Cache rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheVersion = "1" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_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-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\MuiCache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" rundll32.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 2504 PING.EXE - Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 9 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) - Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 3440 rundll32.exe 6056 rundll32.exe 5320 rundll32.exe 1652 rundll32.exe 5556 mshta.exe 5556 mshta.exe 5556 mshta.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 5556 wrote to memory of 5320 5556 mshta.exe 89 PID 5556 wrote to memory of 3440 5556 mshta.exe 90 PID 5556 wrote to memory of 6056 5556 mshta.exe 91 PID 5556 wrote to memory of 1652 5556 mshta.exe 92 PID 5556 wrote to memory of 4228 5556 mshta.exe 93 PID 1652 wrote to memory of 5584 1652 rundll32.exe 95 PID 6056 wrote to memory of 5760 6056 rundll32.exe 96 PID 5320 wrote to memory of 1736 5320 rundll32.exe 98 PID 3440 wrote to memory of 5916 3440 rundll32.exe 99 - Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 4228 attrib.exe
Processes
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C:\Windows\SysWOW64\mshta.exeC:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\Termo de Adesao-TSIU59.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:5556 -
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:5320 -
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:1736
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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:3440 -
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:5916
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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:6056 -
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:5760
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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:1652 -
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:5584
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C:\Windows\SysWOW64\attrib.exe"C:\Windows\System32\attrib.exe" +h +s "C:\idhiofre\"2⤵
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:4228
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C:\idhiofre\idhiofre.exe"C:\idhiofre\idhiofre.exe" C:\idhiofre\idhiofre2⤵PID:6096
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 82⤵PID:3616
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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:4504
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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:5688 -
C:\Windows\SysWOW64\PING.EXEping -n 300 -w 1000 127.0.0.13⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2504
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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:\idhiofre\a1.zip
- Size 494KB
- SHA256 210531cbaaad847c03f04fafa7e75a4a4df7fce5befbba2424de5ef5abcf4c3c
- MD5 119f901d95354e31f32834f4c7ec735e
- SHA1 fe5ed1833dc38cb6657dad8e5da7db2a7ac4be0d
- SHA512 08462e4169f94e9c3f657704bbb7ada4bbf25217e8f25b50141e11843b83014c6991e2b40f9c168ef7f93e02caa2e3afa9f99fbcaad9ba76876c3af1343dd2c4
- SSDEEP 12288:mxU7hblQnL+/dh+Gez4yOGtBan225oCWp8SrIU:mq7hblmK/dgGeVlk22aCarIU
- TLSH T108B4231C22C5BD086D3D97FB58539F7405E6269E14B8024CE18B63C4ABCEF815F829E5
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\idhiofre\a2.zip
- Size 1.3MB
- SHA256 1b7df420a917b2f1c735ebfd3506438f4751160292d1aeb782360953935b2b4c
- MD5 6d2680cc712971f2af991a4eae9c5cf8
- SHA1 3b23c768886855ab92eb2442c71ce875c519e584
- SHA512 5866f721f720988a7f92584913f4f9e2a0e7ef69dad746d183bff6587cb8908a4a09ca2b55e6d96837e539a7a769867db5a01f4c845bdb31b7defef437b8177c
- SSDEEP 24576:mAuYNwua6NduNqjRt1pSdu4E0mcKptG6lgVT0kQkmSp9QpDH1tMlyag:mAuSw7Ku4xpSd7m7BlgVQmvQJH1tF
- TLSH T1FF553355B7EDDF14E07C52A1C9C14ED42EE304ADBFE8CC081AC84788D5D236DA948EBA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\idhiofre\a3.zip
- Size 2KB
- SHA256 46ffd78ef179c0f159f30d487932ed3528fa404df415c7d4face82c6736046ee
- MD5 2da9073cfa8bb84e6ac5f2edbbb026df
- SHA1 fa22e14b0c23c6c91f83ab8f9e03a911c0d4ca4a
- SHA512 a38e1c0a724f6b5303f8dad7f760a219c7288121333222bf0dd9e6a3a96f3fba51ca648e19ce09e3bd62f734846a7d6bacb66dc7a841b43a46b42482b19f390a
- TLSH T10C413AE88E7CBDE0D28FB9349A18587055373EC899C461680EBFEC04213039DDB6E42C
- MD5 SHA1 SHA512 TLSH
- Path C:\idhiofre\idhiofre
- Size 1.3MB
- SHA256 30af0a4b9b7c7d8cf41c169be3d51c03d9dabd0c18ed699b31850b618b5db55e
- MD5 3acd16edf0a4a2c6ece5bdb47bbfe252
- SHA1 f2c68a96d6233778d1900a859ff089284c1672f2
- SHA512 db484aa924751393a2bb72b482dea0882e2ea077a48f24e9535c1dd4fb49491779832533a50b509770220503952dc01253e62205b3a376ee4660d7c7f3348172
- SSDEEP 24576:wAsYBwwc6NnutqPLth3SduIE0mcKppG2RgzTckokmGpVQpHH3tghysG:wAsiw7WuYn3Sdpm7PRgzIYrQhH3tb
- TLSH T121553355B7EDDF04E0BD51A1D9C14ED42EE304ADBFE8CC081AC84788D5D236DA948EBA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\idhiofre\idhiofre.exe
- Size 957KB
- SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
- MD5 279274f8a137bf31425a9c2c14444b66
- SHA1 6f7f971406854309d94139aa70bdc772308aff52
- SHA512 2e69e99ae2c2f0c3361351853ecfcd1982ea542ef8aff9314e991642f106a87d45479f21f53367ad93b29ce9d98b60706ff9554a9c9d2a793fbed1589b90a85d
- SSDEEP 24576:8SmEH7kpRArkvBz1oxovFDVeAj2HoB3a33rfBH:827kpRA4R1oGDVeQXsrf
- TLSH T11B259E0373D18022FF93A9721E5FE72656BC6D2A0323956F13D81EB9F9305B14A1E672
- MD5 SHA1 SHA512 SSDEEP TLSH