Analysis
- max time kernel
149s - max time network
140s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
22/05/2026, 12:11
General
- Target inf.exe
- Size 982KB
- Sample260522-pc3ryaav8q
- SHA256 719aed0c7c027a69d71cd3eff71567a8dabc68c9370a08d1f934752b36d61419
Malware Config
Signatures
- Family: Troldesh, Shade, Encoder.858
Troldesh is a ransomware spread by malspam.
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- UPX packed file 29 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\inf.exe"C:\Users\Admin\AppData\Local\Temp\inf.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
C:\ProgramData\Windows\csrss.exe"C:\ProgramData\Windows\csrss.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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
csrss.exe
memory/1564-21-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-19-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-3-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-5-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-8-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-7-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-4-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-1-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-20-0x0000000002350000-0x0000000002425000-memory.dmp
memory/1564-43-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-42-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-41-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-40-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-37-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-2-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-39-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-38-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-0-0x0000000002350000-0x0000000002425000-memory.dmp
memory/1564-28-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-29-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-30-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-31-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-32-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-33-0x0000000000400000-0x0000000000608000-memory.dmp
memory/1564-36-0x0000000000400000-0x0000000000608000-memory.dmp
memory/2900-22-0x0000000000400000-0x0000000000608000-memory.dmp
memory/2900-13-0x0000000000400000-0x0000000000608000-memory.dmp
memory/2900-23-0x0000000000400000-0x0000000000608000-memory.dmp
memory/2900-18-0x0000000000400000-0x0000000000608000-memory.dmp
memory/2900-17-0x0000000000400000-0x0000000000608000-memory.dmp
memory/2900-16-0x0000000000400000-0x0000000000608000-memory.dmp
memory/2900-14-0x0000000000400000-0x0000000000608000-memory.dmp