Overview
overview
8Static
static
3Reserva.zip
windows10-2004-x64
8Reserva.zip
windows11-21h2-x64
1Abrir_Rese...em.cmd
windows10-2004-x64
3Abrir_Rese...em.cmd
windows11-21h2-x64
3Instalar_Cliente.cmd
windows10-2004-x64
8Instalar_Cliente.cmd
windows11-21h2-x64
8Reserva_Nuvem_160.exe
windows10-2004-x64
3Reserva_Nuvem_160.exe
windows11-21h2-x64
3Verificar_GDS32.cmd
windows10-2004-x64
3Verificar_GDS32.cmd
windows11-21h2-x64
3dbexpint.dll
windows10-2004-x64
3dbexpint.dll
windows11-21h2-x64
3gds32.dll
windows10-2004-x64
3gds32.dll
windows11-21h2-x64
3midas.dll
windows10-2004-x64
3midas.dll
windows11-21h2-x64
3msvcr71.dll
windows10-2004-x64
3msvcr71.dll
windows11-21h2-x64
3reserva.ini
windows10-2004-x64
1reserva.ini
windows11-21h2-x64
3Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
05/06/2026, 16:59
Static task
static1
Behavioral task
behavioral1
Sample
Reserva.zip
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Reserva.zip
Resource
win11-20260513-en
Behavioral task
behavioral3
Sample
Abrir_Reserva_Nuvem.cmd
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
Abrir_Reserva_Nuvem.cmd
Resource
win11-20260513-en
Behavioral task
behavioral5
Sample
Instalar_Cliente.cmd
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
Instalar_Cliente.cmd
Resource
win11-20260513-en
Behavioral task
behavioral7
Sample
Reserva_Nuvem_160.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
Reserva_Nuvem_160.exe
Resource
win11-20260513-en
Behavioral task
behavioral9
Sample
Verificar_GDS32.cmd
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
Verificar_GDS32.cmd
Resource
win11-20260513-en
Behavioral task
behavioral11
Sample
dbexpint.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
dbexpint.dll
Resource
win11-20260513-en
Behavioral task
behavioral13
Sample
gds32.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
gds32.dll
Resource
win11-20260513-en
Behavioral task
behavioral15
Sample
midas.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
midas.dll
Resource
win11-20260513-en
Behavioral task
behavioral17
Sample
msvcr71.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
msvcr71.dll
Resource
win11-20260513-en
Behavioral task
behavioral19
Sample
reserva.ini
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
reserva.ini
Resource
win11-20260513-en
General
- Target msvcr71.dll
- Size 340KB
- Sample260605-vhsrtacy3l
- SHA256 8094af5ee310714caebccaeee7769ffb08048503ba478b879edfef5f1a24fefe
- MD5 86f1895ae8c5e8b17d99ece768a70732
- SHA1 d5502a1d00787d68f548ddeebbde1eca5e2b38ca
- SHA512 3b7ce2b67056b6e005472b73447d2226677a8cadae70428873f7efa5ed11a3b3dbf6b1a42c5b05b1f2b1d8e06ff50dfc6532f043af8452ed87687eefbf1791da
- SSDEEP 6144:OcV9z83OtqxnEYmt3NEnvfF+Tbmbw6An8FMciFMNrb3YgxxpbCAOxO2ElvlE:Ooz83OtIEzW+/m/AyF7bCrO/E
- TLSH T10374C012B1A3CCB3D0B6007449596B599BBFE43046798A73BFE80E4E4F746D1D726A23
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 3428 672 WerFault.exe 84 - System Location Discovery: System Language Discovery 1 TTPs 1 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 - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3432 wrote to memory of 672 3432 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr71.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3432 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr71.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:672 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 672 -s 6003⤵
- Program crash
PID:3428
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 672 -ip 6721⤵PID:2372