Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
22/05/2026, 13:59
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
3 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe
Resource
win11-20260513-en
windows11-21h2-x64
0 signatures
150 seconds
General
- Target 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe
- Size 1.3MB
- Sample260522-rat35afv8v
- SHA256 2995bbd6c3a02f8fca7b6ee44810613f0fb5c13b07973868e9e0e8b7b94d641f
- MD5 a601aaa689b82d37451001838a8c763d
- SHA1 63adc38d9281378efbba670ad23b658926d4ee53
- SHA512 b09d08da9192169733e64174d88d74f84eab697a8736dc565398c15056a60a180f4139129650d66a6da6c174a1033cf0cde90f13986e34d9877e491f1830f039
- SSDEEP 12288:LabzQUGzoDhTs9vet7XnIcN/ld5lVvYRMFlvZoByl:eGzPeV3J5lkoZayl
- TLSH T1D155C541B6A80895FCAE9D7489668675FA32BD9F3D2DB30F1C50B22F1E338D05E25721
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
Malware Config
Signatures
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\H: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\T: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\V: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\W: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\Y: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\Z: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\A: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\B: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\G: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\M: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\S: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\U: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\X: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\J: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\L: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\E: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\I: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\K: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\N: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\O: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\P: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\Q: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened (read-only) \??\R: 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe - Drops file in Program Files directory 21 IoCs
description ioc Process File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\createdump.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\7-Zip\7zG.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ShapeCollector.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\TabTip.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\dotnet\dotnet.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\mip.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\InputPersonalization.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-22_a601aaa689b82d37451001838a8c763d_mespinoza.exe"1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Checks processor information in registry
PID:2016