Analysis
- max time kernel
149s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
04/11/2026, 07:36
General
- Target PO_N0_98076.JS.js
- Size 3.0MB
- Sample261104-jfcf9sty9m
- SHA256 2e90337407e97c12f994d4d2a981a29516633c657f962ff94ba2c1f1ca22f4e4
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 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Executes a VBScript file via the Windows Script Host. 1 TTPs 1 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 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- NTFS ADS 1 IoCs
- Suspicious behavior: EnumeratesProcesses 15 IoCs
- Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\PO_N0_98076.JS.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\PO_N0_98076.JS.js:Zone.Identifier"2⤵
- Executes a command shell one-liner
- NTFS ADS
-
-
C:\Users\Admin\Documents\CALCJFECITDQHIPN.exe"C:\Users\Admin\Documents\CALCJFECITDQHIPN.exe" C:\Users\Admin\Documents\NPIHQDTICEFJCLAC2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\Documents\NPIHQDTICEFJCLAC.vbs"1⤵
- Checks computer location settings
- Executes a VBScript file via the Windows Script Host.
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Documents\CALCJFECITDQHIPN.exe"C:\Users\Admin\Documents\CALCJFECITDQHIPN.exe" "C:\Users\Admin\Documents\NPIHQDTICEFJCLAC"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
CALCJFECITDQHIPN.exe
CALCJFECITDQHIPN.mui
NPIHQDTICEFJCLAC
NPIHQDTICEFJCLAC.vbs
memory/5044-44-0x00000000037A0000-0x0000000003AEA000-memory.dmp
memory/5044-21-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-19-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-18-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-17-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-22-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-28-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-33-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-32-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-31-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-30-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-29-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-27-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-26-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-25-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-24-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-23-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-75-0x0000000002A20000-0x0000000002A66000-memory.dmp
memory/5044-20-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-37-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-40-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-41-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-39-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-38-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-36-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-35-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-34-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-42-0x00000000026D0000-0x0000000002716000-memory.dmp
memory/5044-43-0x0000000002A20000-0x0000000002A66000-memory.dmp
memory/5044-13-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-12-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-90-0x0000000002A20000-0x0000000002A66000-memory.dmp
memory/5044-14-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5044-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5044-79-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5044-78-0x0000000002A20000-0x0000000002A66000-memory.dmp
memory/5592-53-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-74-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-76-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-67-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-73-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-72-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-71-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-70-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-69-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-68-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-66-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-65-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-64-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-63-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-61-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-60-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-59-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-58-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-57-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-56-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-55-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-54-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-51-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-62-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-50-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-80-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5592-86-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5592-52-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/5592-49-0x000000007FE40000-0x000000007FE50000-memory.dmp