Analysis
- max time kernel
149s - max time network
141s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
10/09/2026, 11:04
General
- Target eed61761454ec6512cea73d5c13430aea0d66a8518970775dd31c8b0fd677bd6.exe
- Size 1.1MB
- Sample260910-m6gepabl4z
- SHA256 eed61761454ec6512cea73d5c13430aea0d66a8518970775dd31c8b0fd677bd6
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 1 IoCs
Run Powershell and hide display window.
- Executes dropped EXE 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\eed61761454ec6512cea73d5c13430aea0d66a8518970775dd31c8b0fd677bd6.exe"C:\Users\Admin\AppData\Local\Temp\eed61761454ec6512cea73d5c13430aea0d66a8518970775dd31c8b0fd677bd6.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:\Users\Admin\AppData\Local\Temp\eed61761454ec6512cea73d5c13430aea0d66a8518970775dd31c8b0fd677bd6.exe"C:\Users\Admin\AppData\Local\Temp\eed61761454ec6512cea73d5c13430aea0d66a8518970775dd31c8b0fd677bd6.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2516 -s 2283⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2516 -ip 25161⤵
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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 -Command "$mnoxof=2080;$keldz4=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$gjepph=Get-Date;$dslt4f=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXFZ6Yi5leGU=')));$mnoxof=2080;& $keldz4 -FilePath $dslt4f"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\Vzb.exe"C:\Users\Admin\AppData\Roaming\Vzb.exe"2⤵
- Executes dropped EXE
- 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:\Users\Admin\AppData\Roaming\Vzb.exe"C:\Users\Admin\AppData\Roaming\Vzb.exe"3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\Vzb.exe"C:\Users\Admin\AppData\Roaming\Vzb.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
Vzb.exe
memory/1840-27-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-32-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-34-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-29-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-28-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-17-0x00007FFC1405F000-0x00007FFC14060000-memory.dmp
memory/1840-26-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-25-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-24-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-23-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-22-0x000001FFA3320000-0x000001FFA3342000-memory.dmp
memory/1840-19-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/1840-18-0x00007FFC13ED0000-0x00007FFC14874000-memory.dmp
memory/2516-16-0x0000000001A10000-0x0000000001D84000-memory.dmp
memory/2516-33-0x0000000001620000-0x0000000001666000-memory.dmp
memory/2516-14-0x0000000001620000-0x0000000001666000-memory.dmp
memory/2516-13-0x0000000000400000-0x0000000000446000-memory.dmp
memory/4800-35-0x0000000006CE0000-0x000000000703B000-memory.dmp
memory/4832-8-0x0000000006F60000-0x00000000072BB000-memory.dmp
memory/4832-5-0x0000000005AD0000-0x0000000005B6C000-memory.dmp
memory/4832-10-0x0000000074B92000-0x0000000074B93000-memory.dmp
memory/4832-9-0x0000000005D70000-0x0000000005D92000-memory.dmp
memory/4832-15-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/4832-7-0x0000000005BD0000-0x0000000005BF2000-memory.dmp
memory/4832-6-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/4832-11-0x0000000074B80000-0x000000007533C000-memory.dmp
memory/4832-4-0x0000000003460000-0x000000000346A000-memory.dmp
memory/4832-12-0x00000000075A0000-0x0000000007686000-memory.dmp
memory/4832-3-0x00000000058C0000-0x0000000005952000-memory.dmp
memory/4832-2-0x0000000005FA0000-0x000000000655A000-memory.dmp
memory/4832-0-0x0000000074B92000-0x0000000074B93000-memory.dmp
memory/4832-1-0x0000000000C90000-0x0000000000DAC000-memory.dmp