Analysis
- max time kernel
40s - max time network
24s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
20/07/2026, 19:28
General
- Target rconfirma____odepagamento_PDF.exe
- Size 987KB
- Sample260720-x6vx7aex4x
- SHA256 b393bd767c142e171dd1b2928bae16fff2f63b3d319b2c1acb37129d8d538cc9
Malware Config
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 4 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 17 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 24 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS1⤵
- Suspicious behavior: GetForegroundWindowSpam
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C:\Users\Admin\AppData\Local\Temp\rconfirma____odepagamento_PDF.exe"C:\Users\Admin\AppData\Local\Temp\rconfirma____odepagamento_PDF.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\rconfirma____odepagamento_PDF.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\mr5vikduevz.ps1"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\jxkwuZDc.exe"C:\Users\Admin\AppData\Roaming\jxkwuZDc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\sethc.exe"C:\Windows\SysWOW64\sethc.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Accessibility Features
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Accessibility Features
1Replay Monitor
Loading Replay Monitor...
Downloads
StartupProfileData-NonInteractive
__PSScriptPolicyTest_ubuynjsd.fi0.ps1
mr5vikduevz.ps1
jxkwuZDc.exe
memory/1172-49-0x0000000000FF0000-0x0000000001036000-memory.dmp
memory/1172-24-0x00000000015A0000-0x0000000001914000-memory.dmp
memory/1172-17-0x0000000000FF0000-0x0000000001036000-memory.dmp
memory/1172-16-0x0000000000400000-0x0000000000446000-memory.dmp
memory/1172-50-0x0000000000FF0000-0x0000000001036000-memory.dmp
memory/1172-32-0x0000000000FF0000-0x0000000001036000-memory.dmp
memory/1756-5-0x0000000005840000-0x000000000584A000-memory.dmp
memory/1756-0-0x0000000075082000-0x0000000075083000-memory.dmp
memory/1756-10-0x00000000086C0000-0x00000000087A2000-memory.dmp
memory/1756-9-0x0000000008620000-0x00000000086BC000-memory.dmp
memory/1756-8-0x0000000075070000-0x000000007582C000-memory.dmp
memory/1756-7-0x0000000075082000-0x0000000075083000-memory.dmp
memory/1756-6-0x00000000083E0000-0x00000000083F0000-memory.dmp
memory/1756-4-0x0000000075070000-0x000000007582C000-memory.dmp
memory/1756-3-0x00000000057A0000-0x0000000005832000-memory.dmp
memory/1756-2-0x0000000005E40000-0x00000000063FA000-memory.dmp
memory/1756-1-0x0000000000B80000-0x0000000000C7E000-memory.dmp
memory/1756-25-0x0000000075070000-0x000000007582C000-memory.dmp
memory/2788-52-0x0000000005A00000-0x0000000005AC2000-memory.dmp
memory/2856-28-0x000002635A870000-0x000002635A892000-memory.dmp
memory/3168-48-0x0000000000E20000-0x0000000000E63000-memory.dmp
memory/3168-51-0x0000000000E20000-0x0000000000E63000-memory.dmp
memory/3316-12-0x00000000024C0000-0x00000000024F6000-memory.dmp
memory/3316-30-0x0000000006270000-0x00000000062BC000-memory.dmp
memory/3316-29-0x00000000058E0000-0x00000000058FE000-memory.dmp
memory/3316-35-0x0000000006EC0000-0x0000000006EF6000-memory.dmp
memory/3316-39-0x0000000006EA0000-0x0000000006EC0000-memory.dmp
memory/3316-18-0x0000000004EF0000-0x0000000004F12000-memory.dmp
memory/3316-40-0x0000000006F00000-0x0000000006FA3000-memory.dmp
memory/3316-36-0x0000000075950000-0x000000007599C000-memory.dmp
memory/3316-41-0x0000000007660000-0x0000000007CDC000-memory.dmp
memory/3316-42-0x0000000007020000-0x000000000703A000-memory.dmp
memory/3316-43-0x0000000007090000-0x000000000709A000-memory.dmp
memory/3316-44-0x0000000007290000-0x0000000007326000-memory.dmp
memory/3316-23-0x0000000005920000-0x0000000005C7B000-memory.dmp
memory/3316-47-0x0000000075070000-0x000000007582C000-memory.dmp
memory/3316-20-0x00000000056D0000-0x0000000005736000-memory.dmp
memory/3316-19-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/3316-14-0x0000000075070000-0x000000007582C000-memory.dmp
memory/3316-15-0x0000000004FA0000-0x00000000055EA000-memory.dmp
memory/3316-13-0x0000000075070000-0x000000007582C000-memory.dmp