Analysis
- max time kernel
61s - max time network
143s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:06
General
- Target sam123.exe
- Size 694KB
- Sample201109-knpy4seycs
- SHA256 dbbaf0499e544e3832699110f71f62a521ec93cc8a74656c92af7023f554d897
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.shrc-india.com
-
Port
587
-
Username
-
Password
Orders@9999
Extracted
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agenttesla
-
Protocol
smtp
-
Host
mail.shrc-india.com
-
Port
587
-
Username
-
Password
Orders@9999
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 26 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\sam123.exe"C:\Users\Admin\AppData\Local\Temp\sam123.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\sam123.exe"C:\Users\Admin\AppData\Local\Temp\sam123.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
-
-
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C:\Users\Admin\AppData\Local\Temp\sam123.exe"C:\Users\Admin\AppData\Local\Temp\sam123.exe" 2 800 2592730932⤵
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/800-11-0x00000000048A0000-0x00000000048A1000-memory.dmp
memory/800-12-0x0000000004980000-0x0000000004981000-memory.dmp
memory/800-2-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/800-16-0x0000000005DC0000-0x0000000005DC1000-memory.dmp
memory/800-4-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/800-5-0x00000000021A0000-0x00000000021F2000-memory.dmp
memory/800-10-0x0000000004AC0000-0x0000000004AC1000-memory.dmp
memory/800-6-0x0000000002212000-0x0000000002213000-memory.dmp
memory/800-0-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/800-7-0x0000000072DA0000-0x000000007348E000-memory.dmp
memory/800-13-0x00000000054B0000-0x00000000054B1000-memory.dmp
memory/800-15-0x0000000005F20000-0x0000000005F21000-memory.dmp