Analysis
- max time kernel
149s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
10/08/2026, 08:28
General
- Target proformainvoice396397740000.pdf.exe
- Size 981KB
- Sample260810-kdaqbsvckb
- SHA256 bbb3837bc8706b87668877a86fcda6a69ace99739e19caa744bef624570a7c0a
Malware Config
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 1 IoCs
- SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 1 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\proformainvoice396397740000.pdf.exe"C:\Users\Admin\AppData\Local\Temp\proformainvoice396397740000.pdf.exe"1⤵
- 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\Local\Temp\proformainvoice396397740000.pdf.exe"C:\Users\Admin\AppData\Local\Temp\proformainvoice396397740000.pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\proformainvoice396397740000.pdf.exe"C:\Users\Admin\AppData\Local\Temp\proformainvoice396397740000.pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\proformainvoice396397740000.pdf.exe"C:\Users\Admin\AppData\Local\Temp\proformainvoice396397740000.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1843⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4804 -ip 48041⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2340-0-0x00000000004A0000-0x000000000059A000-memory.dmp
memory/2340-1-0x00000000054C0000-0x0000000005A64000-memory.dmp
memory/2340-2-0x0000000004FB0000-0x0000000005042000-memory.dmp
memory/2340-3-0x0000000005160000-0x0000000005170000-memory.dmp
memory/2340-4-0x0000000004F80000-0x0000000004F8A000-memory.dmp
memory/2340-5-0x0000000005120000-0x0000000005134000-memory.dmp
memory/2340-6-0x0000000005160000-0x0000000005170000-memory.dmp
memory/2340-7-0x0000000006B40000-0x0000000006BDC000-memory.dmp
memory/2340-8-0x0000000006BF0000-0x0000000006CCE000-memory.dmp
memory/4804-9-0x0000000000400000-0x0000000000446000-memory.dmp
memory/4804-11-0x0000000001210000-0x0000000001256000-memory.dmp
memory/4804-12-0x0000000001840000-0x0000000001B8A000-memory.dmp
memory/4804-13-0x0000000001210000-0x0000000001256000-memory.dmp