Analysis
- max time kernel
149s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
20/08/2026, 14:39
General
- Target quotation_5737.js
- Size 1.1MB
- Sample260820-r1fnesdr4y
- SHA256 bff91df6417b7e58badd01a49b29c9031dc197599ce92d54ddcff92e52a69e28
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.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 5 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.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 25 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 19 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
Processes
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\quotation_5737.js2⤵
- Suspicious behavior: MapViewOfSection
- 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\zdf81vti\cfg_18648_711d.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\33e5iau5\33e5iau5.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\RESF756.tmp" "c:\Users\Admin\AppData\Local\Temp\33e5iau5\CSCFDFA26245F624FEFA6C77D8EE05F3246.TMP"5⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\SysWOW64\iexpress.exe"C:\Windows\SysWOW64\iexpress.exe"3⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
- outlook_office_path
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"4⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
33e5iau5.dll
RESF756.tmp
cfg_18648_711d.ps1
33e5iau5.0.cs
33e5iau5.cmdline
CSCFDFA26245F624FEFA6C77D8EE05F3246.TMP
memory/1296-43-0x0000000003290000-0x0000000003385000-memory.dmp
memory/1360-42-0x0000000000C80000-0x0000000000CC4000-memory.dmp
memory/1360-41-0x0000000000C80000-0x0000000000CC4000-memory.dmp
memory/1980-50-0x000001FE0F3D0000-0x000001FE0F4CC000-memory.dmp
memory/2648-40-0x0000000000A60000-0x0000000000AA7000-memory.dmp
memory/2648-32-0x0000000000790000-0x00000000007D7000-memory.dmp
memory/3952-11-0x00000000049A0000-0x00000000049BE000-memory.dmp
memory/3952-33-0x0000000074452000-0x0000000074453000-memory.dmp
memory/3952-17-0x0000000006CE0000-0x0000000006CF6000-memory.dmp
memory/3952-15-0x0000000007330000-0x00000000079AC000-memory.dmp
memory/3952-14-0x0000000074440000-0x0000000074BFC000-memory.dmp
memory/3952-12-0x0000000005B60000-0x0000000005BAC000-memory.dmp
memory/3952-1-0x0000000074452000-0x0000000074453000-memory.dmp
memory/3952-10-0x0000000005610000-0x000000000596B000-memory.dmp
memory/3952-30-0x0000000005AE0000-0x0000000005AE8000-memory.dmp
memory/3952-31-0x0000000005AF0000-0x0000000005AF8000-memory.dmp
memory/3952-6-0x0000000004EB0000-0x0000000004F16000-memory.dmp
memory/3952-16-0x0000000006080000-0x000000000609A000-memory.dmp
memory/3952-34-0x0000000074440000-0x0000000074BFC000-memory.dmp
memory/3952-35-0x0000000006E30000-0x0000000006EC6000-memory.dmp
memory/3952-36-0x0000000006DC0000-0x0000000006DE2000-memory.dmp
memory/3952-37-0x0000000007F70000-0x000000000852A000-memory.dmp
memory/3952-39-0x0000000074440000-0x0000000074BFC000-memory.dmp
memory/3952-7-0x00000000055A0000-0x0000000005606000-memory.dmp
memory/3952-5-0x0000000004E10000-0x0000000004E32000-memory.dmp
memory/3952-4-0x0000000004F50000-0x000000000559A000-memory.dmp
memory/3952-3-0x0000000074440000-0x0000000074BFC000-memory.dmp
memory/3952-2-0x00000000022A0000-0x00000000022D6000-memory.dmp