Analysis
- max time kernel
59s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:03
General
- Target 43f4a085f2db58995bce3ebad9113424.exe
- Size 666KB
- Sample201109-4pf1d28cea
- SHA256 bdbe8a51b702700c3149e98a7d2c3daf79ce1980b38c818223343532fd0487c9
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
CSJY%zs2
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
CSJY%zs2
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- UPX packed file 3 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 4 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\43f4a085f2db58995bce3ebad9113424.exe"C:\Users\Admin\AppData\Local\Temp\43f4a085f2db58995bce3ebad9113424.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\43f4a085f2db58995bce3ebad9113424.exe"C:\Users\Admin\AppData\Local\Temp\43f4a085f2db58995bce3ebad9113424.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1368-0-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/1368-2-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/1368-3-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/1368-4-0x0000000002180000-0x00000000021D2000-memory.dmp
memory/1368-5-0x00000000022E2000-0x00000000022E3000-memory.dmp