Analysis
- max time kernel
150s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
17/08/2026, 12:14
General
- Target Inquiry ACK2-02500.vbs
- Size 285KB
- Sample260817-pegmgsbc25
- SHA256 857baf317468e83abc045d7e6c0b11ef45626a55147fad36b211a8f73ceb0e83
Malware Config
Signatures
- Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 2 IoCs
- Badlisted process makes network request 1 IoCs
Network request originating from process or tool commonly abused by malware.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Downloads MZ/PE file 1 IoCs
- Uses the VBS compiler for execution 1 TTPs
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
- Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 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 33 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 29 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- outlook_office_path 1 IoCs
Processes
-
C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Inquiry ACK2-02500.vbs"2⤵
- Executes a VBScript file via the Windows Script Host.
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -EP Bypass -NonInteractive -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\75589B49E\75589B49E.ps1"3⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Downloads MZ/PE file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\SysWOW64\UserAccountControlSettings.exe"C:\Windows\SysWOW64\UserAccountControlSettings.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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C:\Windows\system32\wscript.exewscript.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
75589B49E.ps1
75589B49Ea
75589B49Eb
memory/1264-14-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-18-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-7-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-6-0x00000175FB890000-0x00000175FB8B2000-memory.dmp
memory/1264-12-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-13-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-15-0x00000175FBA30000-0x00000175FBA80000-memory.dmp
memory/1264-31-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-16-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-8-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-17-0x00000175FBA80000-0x00000175FBA92000-memory.dmp
memory/1264-3-0x00007FFE2A8EF000-0x00007FFE2A8F0000-memory.dmp
memory/1264-23-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-24-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-25-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-26-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-27-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/1264-28-0x00007FFE2A760000-0x00007FFE2B104000-memory.dmp
memory/5544-41-0x000001CE4B7B0000-0x000001CE4B8B7000-memory.dmp
memory/5804-20-0x0000000000B10000-0x0000000000B11000-memory.dmp
memory/5804-30-0x0000000000EF0000-0x0000000000F36000-memory.dmp
memory/5804-19-0x00000000007B0000-0x00000000007F6000-memory.dmp
memory/5884-32-0x0000000000590000-0x00000000005D3000-memory.dmp
memory/5884-33-0x0000000000590000-0x00000000005D3000-memory.dmp
memory/5996-34-0x0000000005C10000-0x0000000005D2C000-memory.dmp