Analysis
- max time kernel
148s - max time network
119s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
18/09/2026, 10:24
General
- Target AU_32.bat
- Size 1.1MB
- Sample260918-mfvvdsdc48
- SHA256 8c4b1b84386068ab685050001f311f1f59f2d4174dcd1e06a13d04c1ba8eb093
Malware Config
Extracted
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vipkeylogger
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Protocol
smtp
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Host
cphost17.qhoster.net
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Port
587
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Username
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Password
Qwerty!@#
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Email to
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Detects DonutLoader 1 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
- Executes dropped EXE 1 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Deobfuscate/Decode Files or Information 1 TTPs 2 IoCs
Payload decoded via CertUtil.
- Looks up external IP address via web service 1 TTPs 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Executes a command shell one-liner 1 TTPs 2 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 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of SendNotifyMessage 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\AU_32.bat"1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -WindowStyle Hidden -Command "& {cmd /c 'C:\Users\Admin\AppData\Local\Temp\AU_32.bat' hidden; exit}"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\AU_32.bat hidden3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\certutil.execertutil -decode "C:\Users\Admin\AppData\Local\Temp\temp2.txt" "C:\Users\Admin\AppData\Local\Temp\app.zip"4⤵
- Deobfuscate/Decode Files or Information
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Expand-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\app.zip' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp' -Force"4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\certutil.execertutil -decode "C:\Users\Admin\AppData\Local\Temp\temp1.txt" "C:\Users\Admin\AppData\Local\Temp\au.ini"4⤵
- Deobfuscate/Decode Files or Information
-
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C:\Users\Admin\AppData\Local\Temp\support.exe"C:\Users\Admin\AppData\Local\Temp\support.exe" "C:\Users\Admin\AppData\Local\Temp\au.dat"4⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_et04odam.uh2.ps1
app.zip
au.dat
au.ini
support.exe
temp1.txt
temp2.txt
memory/1600-19-0x000002CEA4FC0000-0x000002CEA4FCA000-memory.dmp
memory/1600-21-0x000002CEA4EE0000-0x000002CEA4EEA000-memory.dmp
memory/1600-20-0x000002CEA4FC0000-0x000002CEA4FD2000-memory.dmp
memory/1600-17-0x000002CEA4EE0000-0x000002CEA4EFE000-memory.dmp
memory/1600-18-0x000002CEA4F00000-0x000002CEA4FB2000-memory.dmp
memory/4824-9-0x00007FFD081C0000-0x00007FFD08B64000-memory.dmp
memory/4824-3-0x0000025525980000-0x00000255259A2000-memory.dmp
memory/4824-8-0x00007FFD081C0000-0x00007FFD08B64000-memory.dmp
memory/4824-7-0x00007FFD081C0000-0x00007FFD08B64000-memory.dmp
memory/4824-6-0x00007FFD081C0000-0x00007FFD08B64000-memory.dmp
memory/4824-5-0x00007FFD081C0000-0x00007FFD08B64000-memory.dmp
memory/4824-4-0x00007FFD081C0000-0x00007FFD08B64000-memory.dmp
memory/4824-0-0x00007FFD0834F000-0x00007FFD08350000-memory.dmp
memory/5960-35-0x0000000001390000-0x00000000013DC000-memory.dmp
memory/5960-36-0x00000000072F0000-0x0000000007338000-memory.dmp
memory/5960-37-0x0000000007A50000-0x000000000800A000-memory.dmp
memory/5960-38-0x0000000007490000-0x000000000752C000-memory.dmp
memory/5960-39-0x00000000095E0000-0x00000000097A2000-memory.dmp
memory/5960-40-0x0000000007940000-0x0000000007990000-memory.dmp
memory/5960-41-0x00000000094B0000-0x0000000009542000-memory.dmp
memory/5960-42-0x0000000007A10000-0x0000000007A1A000-memory.dmp