Analysis
- max time kernel
149s - max time network
96s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
01/06/2026, 06:39
General
- Target _28278de0514cbae5672f69ac20e42144483c5a6eef2af6778dae742446ca3760.exe
- Size 1.1MB
- Sample260601-het49af13j
- SHA256 28278de0514cbae5672f69ac20e42144483c5a6eef2af6778dae742446ca3760
Malware Config
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 2 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- 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 14 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\_28278de0514cbae5672f69ac20e42144483c5a6eef2af6778dae742446ca3760.exe"C:\Users\Admin\AppData\Local\Temp\_28278de0514cbae5672f69ac20e42144483c5a6eef2af6778dae742446ca3760.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\_28278de0514cbae5672f69ac20e42144483c5a6eef2af6778dae742446ca3760.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\_28278de0514cbae5672f69ac20e42144483c5a6eef2af6778dae742446ca3760.exe"C:\Users\Admin\AppData\Local\Temp\_28278de0514cbae5672f69ac20e42144483c5a6eef2af6778dae742446ca3760.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 2043⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2996 -ip 29961⤵
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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\cghxxe0f124.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\OBNyBwwiWHxjw.exe"C:\Users\Admin\AppData\Roaming\OBNyBwwiWHxjw.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\Roaming\OBNyBwwiWHxjw.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:\Users\Admin\AppData\Roaming\OBNyBwwiWHxjw.exe"C:\Users\Admin\AppData\Roaming\OBNyBwwiWHxjw.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_1vyv3u5y.zlz.ps1
cghxxe0f124.ps1
OBNyBwwiWHxjw.exe
memory/1756-80-0x0000000005EF0000-0x0000000006247000-memory.dmp
memory/1756-92-0x0000000007910000-0x0000000007925000-memory.dmp
memory/1756-82-0x0000000006390000-0x00000000063DC000-memory.dmp
memory/1756-83-0x00000000711F0000-0x000000007123C000-memory.dmp
memory/1756-90-0x0000000007580000-0x0000000007624000-memory.dmp
memory/1756-91-0x00000000078D0000-0x00000000078E1000-memory.dmp
memory/1804-15-0x0000000005380000-0x0000000005390000-memory.dmp
memory/1804-5-0x0000000005900000-0x000000000590A000-memory.dmp
memory/1804-0-0x0000000000760000-0x000000000087E000-memory.dmp
memory/1804-9-0x0000000008E70000-0x0000000008F4E000-memory.dmp
memory/1804-8-0x0000000005380000-0x0000000005390000-memory.dmp
memory/1804-7-0x00000000089D0000-0x00000000089E8000-memory.dmp
memory/1804-6-0x0000000005FC0000-0x000000000605C000-memory.dmp
memory/1804-4-0x0000000005380000-0x0000000005390000-memory.dmp
memory/1804-3-0x0000000005460000-0x00000000057B7000-memory.dmp
memory/1804-2-0x00000000053C0000-0x0000000005452000-memory.dmp
memory/1804-1-0x0000000005970000-0x0000000005F16000-memory.dmp
memory/2832-35-0x00000266C38B0000-0x00000266C38D2000-memory.dmp
memory/2996-14-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2996-32-0x00000000014E0000-0x0000000001836000-memory.dmp
memory/2996-19-0x0000000001130000-0x0000000001176000-memory.dmp
memory/2996-42-0x0000000001130000-0x0000000001176000-memory.dmp
memory/5820-33-0x0000000005CF0000-0x0000000005D0E000-memory.dmp
memory/5820-34-0x0000000005D80000-0x0000000005DCC000-memory.dmp
memory/5820-47-0x0000000006EC0000-0x0000000006EF4000-memory.dmp
memory/5820-56-0x00000000062F0000-0x000000000630E000-memory.dmp
memory/5820-49-0x0000000072C40000-0x0000000072C8C000-memory.dmp
memory/5820-57-0x0000000006F00000-0x0000000006FA4000-memory.dmp
memory/5820-59-0x0000000007040000-0x000000000705A000-memory.dmp
memory/5820-58-0x0000000007680000-0x0000000007CFA000-memory.dmp
memory/5820-60-0x00000000070C0000-0x00000000070CA000-memory.dmp
memory/5820-61-0x00000000072D0000-0x0000000007366000-memory.dmp
memory/5820-62-0x0000000007250000-0x0000000007261000-memory.dmp
memory/5820-63-0x0000000007280000-0x000000000728E000-memory.dmp
memory/5820-64-0x0000000007290000-0x00000000072A5000-memory.dmp
memory/5820-65-0x0000000007390000-0x00000000073AA000-memory.dmp
memory/5820-66-0x0000000007380000-0x0000000007388000-memory.dmp
memory/5820-31-0x0000000005820000-0x0000000005B77000-memory.dmp
memory/5820-24-0x00000000057B0000-0x0000000005816000-memory.dmp
memory/5820-23-0x0000000005690000-0x00000000056F6000-memory.dmp
memory/5820-22-0x0000000004E60000-0x0000000004E82000-memory.dmp
memory/5820-20-0x0000000002530000-0x0000000002540000-memory.dmp
memory/5820-21-0x0000000004EF0000-0x000000000551A000-memory.dmp
memory/5820-17-0x00000000024E0000-0x0000000002516000-memory.dmp
memory/5820-16-0x0000000002530000-0x0000000002540000-memory.dmp