Analysis
- max time kernel
100s - max time network
112s - platform
windows10_x64 - resource
win10v200722 - submitted
21/09/2020, 11:03
General
- Target New Shipment nvoice No..exe
- Size 893KB
- Sample200921-dyvp7rtlm2
- SHA256 6c4e1f8d9d65712d50dd63f5ef8bce5c788afcec567f735e035f068d8c859341
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
nc$jcXy8
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.
- Drops startup file 1 IoCs
- 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.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\New Shipment nvoice No..exe"C:\Users\Admin\AppData\Local\Temp\New Shipment nvoice No..exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\notepad.exe"C:\Windows\system32\notepad.exe"2⤵
- Drops startup file
-
-
C:\Users\Admin\AppData\Local\Temp\New Shipment nvoice No..exe"C:\Users\Admin\AppData\Local\Temp\New Shipment nvoice No..exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2164-6-0x0000000000670000-0x00000000006AC000-memory.dmp
memory/2164-8-0x0000000073600000-0x0000000073CEE000-memory.dmp
memory/2164-4-0x0000000000400000-0x0000000000485000-memory.dmp
memory/2164-5-0x0000000000400000-0x0000000000485000-memory.dmp
memory/2164-16-0x0000000005680000-0x0000000005681000-memory.dmp
memory/2164-7-0x0000000002372000-0x0000000002373000-memory.dmp
memory/2164-2-0x0000000000400000-0x0000000000485000-memory.dmp
memory/2164-11-0x0000000004930000-0x0000000004931000-memory.dmp
memory/2164-12-0x0000000004E30000-0x0000000004E31000-memory.dmp
memory/2164-13-0x00000000048F0000-0x00000000048F1000-memory.dmp
memory/2164-14-0x00000000053C0000-0x00000000053C1000-memory.dmp
memory/2164-15-0x0000000005A90000-0x0000000005A91000-memory.dmp
memory/3888-0-0x0000000000400000-0x00000000004E5000-memory.dmp