Analysis
- max time kernel
117s - max time network
132s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
27/02/2025, 04:25
General
- Target SecuriteInfo.com.Win32.CrypterX-gen.20419.20448.exe
- Size 801KB
- Sample250227-e157vswnz8
- SHA256 bf577ecd72cba029e0f09ba13fd808bbf730efae25ea4e35a4825ec9a57e0f9c
Malware Config
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 16 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.20419.20448.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.20419.20448.exe"1⤵
- 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\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zuNVUYBztc.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zuNVUYBztc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1610.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmp1610.tmp
memory/2552-4-0x0000000002120000-0x0000000002138000-memory.dmp
memory/2552-27-0x0000000074120000-0x000000007480E000-memory.dmp
memory/2552-3-0x00000000049B0000-0x0000000004A36000-memory.dmp
memory/2552-0-0x000000007412E000-0x000000007412F000-memory.dmp
memory/2552-5-0x000000007412E000-0x000000007412F000-memory.dmp
memory/2552-6-0x0000000074120000-0x000000007480E000-memory.dmp
memory/2552-7-0x0000000005160000-0x00000000051C2000-memory.dmp
memory/2552-1-0x0000000000150000-0x000000000021A000-memory.dmp
memory/2552-2-0x0000000074120000-0x000000007480E000-memory.dmp
memory/2732-24-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2732-15-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2732-19-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2732-17-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2732-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2732-26-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2732-25-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2732-21-0x0000000000400000-0x000000000041E000-memory.dmp