Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
05/02/2026, 16:17
General
- Target 1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe
- Size 619KB
- Sample260205-trjd3adv6e
- SHA256 1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599
Malware Config
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook family
- Formbook payload 1 IoCs
- Loads dropped DLL 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Drops file in Windows directory 1 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 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 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"C:\Users\Admin\AppData\Local\Temp\1f8097ccc932fecf1b0ba2997ac3ef35b5d99d2d58408a6a0b45131fcedfc599.exe"3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 11483⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2420 -ip 24201⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
System.dll
memory/2220-38-0x0000000010004000-0x0000000010005000-memory.dmp
memory/2420-39-0x0000000000400000-0x0000000001717000-memory.dmp
memory/2420-40-0x0000000077CB8000-0x0000000077CB9000-memory.dmp
memory/2420-42-0x0000000077CCB000-0x0000000077CCC000-memory.dmp
memory/2420-41-0x0000000077D4B000-0x0000000077D4C000-memory.dmp
memory/2420-54-0x0000000000400000-0x0000000001717000-memory.dmp
memory/2420-56-0x0000000077C21000-0x0000000077D43000-memory.dmp
memory/2420-55-0x0000000000400000-0x0000000001717000-memory.dmp
memory/2420-57-0x0000000000401000-0x0000000000402000-memory.dmp
memory/2420-58-0x0000000000400000-0x0000000001717000-memory.dmp
memory/2420-59-0x0000000000400000-0x0000000001717000-memory.dmp
memory/2420-60-0x0000000000400000-0x0000000001717000-memory.dmp
memory/2420-62-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2420-63-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2420-65-0x0000000000400000-0x0000000001717000-memory.dmp
memory/2420-64-0x0000000035CA0000-0x0000000035FF6000-memory.dmp
memory/2420-66-0x0000000000400000-0x0000000001717000-memory.dmp