Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
20/04/2026, 22:31
General
- Target opszx.scr.exe
- Size 727KB
- Sample260420-2fd9zaex2k
- SHA256 481fe3840d515d4d19d6fb16143aa6845b9df798fe8d6c843297d34219cb14d0
Malware Config
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 4 IoCs
- Suspicious use of SetThreadContext 4 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 62 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\opszx.scr.exe"C:\Users\Admin\AppData\Local\Temp\opszx.scr.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\opszx.scr.exe"C:\Users\Admin\AppData\Local\Temp\opszx.scr.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\SysWOW64\dfrgui.exe"C:\Windows\SysWOW64\dfrgui.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2724-16-0x0000000001200000-0x0000000001240000-memory.dmp
memory/2724-20-0x0000000003210000-0x000000000355A000-memory.dmp
memory/2724-22-0x0000000001560000-0x00000000015F6000-memory.dmp
memory/2724-23-0x0000000003120000-0x00000000031C2000-memory.dmp
memory/2724-17-0x0000000001200000-0x0000000001240000-memory.dmp
memory/2724-21-0x0000000001200000-0x0000000001240000-memory.dmp
memory/2724-25-0x0000000001200000-0x0000000001240000-memory.dmp
memory/2724-32-0x0000000001560000-0x00000000015F6000-memory.dmp
memory/2724-28-0x0000000003120000-0x00000000031C2000-memory.dmp
memory/3252-29-0x0000000009270000-0x0000000009385000-memory.dmp
memory/3252-26-0x0000000009270000-0x0000000009385000-memory.dmp
memory/4324-5-0x00000000057F0000-0x000000000588C000-memory.dmp
memory/4324-1-0x0000000005590000-0x0000000005608000-memory.dmp
memory/4324-10-0x0000000005750000-0x00000000057D7000-memory.dmp
memory/4324-0-0x0000000000A20000-0x0000000000ADC000-memory.dmp
memory/4324-6-0x0000000005630000-0x0000000005638000-memory.dmp
memory/4324-9-0x0000000005420000-0x00000000054B6000-memory.dmp
memory/4324-4-0x0000000003070000-0x0000000003080000-memory.dmp
memory/4324-3-0x00000000056B0000-0x0000000005742000-memory.dmp
memory/4324-2-0x0000000005BC0000-0x0000000006164000-memory.dmp
memory/5060-7-0x0000000000400000-0x0000000000443000-memory.dmp
memory/5060-18-0x0000000000400000-0x0000000000443000-memory.dmp
memory/5060-19-0x0000000001220000-0x0000000001243000-memory.dmp
memory/5060-14-0x0000000000400000-0x0000000000443000-memory.dmp
memory/5060-15-0x0000000001220000-0x0000000001243000-memory.dmp
memory/5060-13-0x0000000000400000-0x0000000000443000-memory.dmp
memory/5060-12-0x0000000000400000-0x0000000000443000-memory.dmp
memory/5060-11-0x00000000012C0000-0x000000000160A000-memory.dmp