Analysis
- max time kernel
143s - max time network
144s - platform
windows7_x64 - resource
win7v20201028 - submitted
12/11/2020, 14:42
General
- Target 3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f.exe
- Size 396KB
- Sample201112-j4wej532qs
- SHA256 3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.rajalakshmi.co.in
-
Port
587
-
Username
-
Password
023_SALes2*
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
- Drops file in Drivers directory 1 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f.exe"C:\Users\Admin\AppData\Local\Temp\3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f.exe"C:\Users\Admin\AppData\Local\Temp\3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f.exe"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f.exe"C:\Users\Admin\AppData\Local\Temp\3acb8c900b76d7232dcb0dd75e92f7647468a845bba8fb42dce2bc1ec2bb1d2f.exe" 2 1268 2592785912⤵
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/484-0-0x0000000000400000-0x00000000004E2000-memory.dmp
memory/1268-3-0x0000000000400000-0x0000000000485000-memory.dmp
memory/1268-1-0x0000000000400000-0x0000000000485000-memory.dmp
memory/1268-5-0x0000000000400000-0x0000000000485000-memory.dmp
memory/1268-7-0x0000000000780000-0x00000000007BC000-memory.dmp
memory/1268-8-0x0000000000772000-0x0000000000773000-memory.dmp
memory/1268-9-0x0000000000620000-0x0000000000657000-memory.dmp
memory/1268-11-0x0000000073EF0000-0x00000000745DE000-memory.dmp
memory/1528-6-0x0000000000400000-0x00000000004E2000-memory.dmp