Analysis
- max time kernel
148s - max time network
115s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
04/08/2026, 12:57
General
- Target NAROČILO_8321.js
- Size 947KB
- Sample260804-p679hs1dkf
- SHA256 e4ea1a522ec3fc617994b77f1d527567c0a21e7a9c92a73366ed2c09382f0a9e
Malware Config
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 2 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Executes a VBScript file via the Windows Script Host. 1 TTPs 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).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\NAROČILO_8321.js1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\mkaw3jvp\tmp_86923_1224.vbs"2⤵
- Executes a VBScript file via the Windows Script Host.
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -NoP -EP Bypass -NonInteractive -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\mkaw3jvp\cfg_63137_1208.ps1"3⤵
- Command and Scripting Interpreter: PowerShell
- 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:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\j3ldsupd\j3ldsupd.cmdline"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES94C4.tmp" "c:\Users\Admin\AppData\Local\Temp\j3ldsupd\CSC378463CBAF7F48C59FA2DCEE6A93E298.TMP"5⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\SysWOW64\findstr.exe"C:\Windows\SysWOW64\findstr.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
RES94C4.tmp
j3ldsupd.dll
cfg_63137_1208.ps1
tmp_34057_1204
tmp_68106_1206
tmp_86923_1224.vbs
CSC378463CBAF7F48C59FA2DCEE6A93E298.TMP
j3ldsupd.0.cs
j3ldsupd.cmdline
memory/1228-47-0x00000000001A0000-0x00000000001E3000-memory.dmp
memory/1228-48-0x00000000001A0000-0x00000000001E3000-memory.dmp
memory/2284-38-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2284-39-0x0000000000AA0000-0x0000000000AE6000-memory.dmp
memory/4412-22-0x0000000006030000-0x000000000604A000-memory.dmp
memory/4412-37-0x0000000004890000-0x0000000004898000-memory.dmp
memory/4412-21-0x0000000007440000-0x0000000007ABC000-memory.dmp
memory/4412-16-0x0000000005A50000-0x0000000005A6E000-memory.dmp
memory/4412-23-0x0000000006A60000-0x0000000006A7A000-memory.dmp
memory/4412-15-0x0000000005540000-0x000000000589B000-memory.dmp
memory/4412-11-0x0000000004D10000-0x0000000004D76000-memory.dmp
memory/4412-12-0x0000000005410000-0x0000000005476000-memory.dmp
memory/4412-10-0x0000000004C70000-0x0000000004C92000-memory.dmp
memory/4412-7-0x0000000075100000-0x00000000758BC000-memory.dmp
memory/4412-36-0x0000000006A90000-0x0000000006A98000-memory.dmp
memory/4412-17-0x0000000005AD0000-0x0000000005B1C000-memory.dmp
memory/4412-9-0x0000000075100000-0x00000000758BC000-memory.dmp
memory/4412-8-0x0000000004DC0000-0x000000000540A000-memory.dmp
memory/4412-40-0x0000000075112000-0x0000000075113000-memory.dmp
memory/4412-41-0x0000000075100000-0x00000000758BC000-memory.dmp
memory/4412-42-0x0000000006DC0000-0x0000000006E56000-memory.dmp
memory/4412-43-0x0000000006B20000-0x0000000006B42000-memory.dmp
memory/4412-44-0x0000000007AC0000-0x000000000807A000-memory.dmp
memory/4412-46-0x0000000075100000-0x00000000758BC000-memory.dmp
memory/4412-6-0x0000000002200000-0x0000000002236000-memory.dmp
memory/4412-5-0x0000000075112000-0x0000000075113000-memory.dmp