Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
05/08/2026, 08:12
General
- Target whatsapp.img.JS.js
- Size 2.9MB
- Sample260805-j37wpagb39
- SHA256 7413c6d84fc258799fedf2c8f721c9c30dde3272a51f40d755de86c3a27f3cbd
Malware Config
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 3 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\whatsapp.img.JS.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\Documents\BOFDWBUELJIPSCEE.PIF"C:\Users\Admin\Documents\BOFDWBUELJIPSCEE.PIF" C:\Users\Admin\Documents\BOFDWBUELJIPSCEE.ttf2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c whoami3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\whoami.exewhoami4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /query /tn "BOFDWBUELJIPSCEE" 2>nul3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /query /tn "BOFDWBUELJIPSCEE"4⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /create /sc minute /mo 15 /tn "BOFDWBUELJIPSCEE" /tr "cmd /c \"C:\Users\Admin\Documents\EECSPIJLEUBWDFOB.url\"" /ru "xhbczssi\admin" /f /it3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 15 /tn "BOFDWBUELJIPSCEE" /tr "cmd /c \"C:\Users\Admin\Documents\EECSPIJLEUBWDFOB.url\"" /ru "xhbczssi\admin" /f /it4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.execmd1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
BOFDWBUELJIPSCEE.PIF
BOFDWBUELJIPSCEE.ttf
BOFDWBUELJIPSCEE.ubf
memory/4344-26-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-35-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-10-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-18-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-17-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-16-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-15-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-14-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-19-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-22-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-21-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-20-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-24-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-8-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-9-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-36-0x0000000002980000-0x00000000029C6000-memory.dmp
memory/4344-33-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-34-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-29-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-32-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-31-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-30-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-25-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-28-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-27-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-23-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4344-37-0x0000000002CC0000-0x0000000002D06000-memory.dmp
memory/4344-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4344-40-0x0000000002CC0000-0x0000000002D06000-memory.dmp
memory/4344-43-0x0000000002CC0000-0x0000000002D06000-memory.dmp
memory/4344-46-0x0000000000400000-0x0000000000482000-memory.dmp