Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
05/02/2026, 15:17
General
- Target b475c6d5e806b588dee0dc1dccfd3c1acd833c31937c45839c862b059f3d1667.exe
- Size 603KB
- Sample260205-sn66aahx7b
- SHA256 b475c6d5e806b588dee0dc1dccfd3c1acd833c31937c45839c862b059f3d1667
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.cottondreams.org
-
Port
587
-
Username
-
Password
Payday2025
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
- Suspicious use of SetThreadContext 1 IoCs
- UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Program crash 1 IoCs
- 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 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of SendNotifyMessage 3 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b475c6d5e806b588dee0dc1dccfd3c1acd833c31937c45839c862b059f3d1667.exe"C:\Users\Admin\AppData\Local\Temp\b475c6d5e806b588dee0dc1dccfd3c1acd833c31937c45839c862b059f3d1667.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\b475c6d5e806b588dee0dc1dccfd3c1acd833c31937c45839c862b059f3d1667.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1272 -s 7242⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1272 -ip 12721⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/1272-0-0x0000000000E20000-0x0000000000F79000-memory.dmp
memory/1272-5-0x00000000010B0000-0x00000000010B4000-memory.dmp
memory/1272-11-0x0000000000E20000-0x0000000000F79000-memory.dmp
memory/3992-6-0x0000000000400000-0x0000000000440000-memory.dmp
memory/3992-7-0x00000000055A0000-0x0000000005B46000-memory.dmp
memory/3992-8-0x0000000004FE0000-0x0000000004FF0000-memory.dmp
memory/3992-9-0x00000000050F0000-0x0000000005156000-memory.dmp
memory/3992-12-0x0000000005EC0000-0x0000000005F10000-memory.dmp
memory/3992-13-0x0000000005FB0000-0x0000000006042000-memory.dmp
memory/3992-14-0x0000000005F40000-0x0000000005F4A000-memory.dmp
memory/3992-15-0x0000000004FE0000-0x0000000004FF0000-memory.dmp