Analysis
- max time kernel
93s - max time network
110s - platform
windows10_x64 - resource
win10 - submitted
07/10/2020, 10:57
General
- Target Swift copy.exe
- Size 525KB
- Sample201007-acly6s442x
- SHA256 0958b7f6561a4a4a41b051dfdabdb73e874f9656b01039fce8412abe96d98067
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.a-k.co.ir
-
Port
587
-
Username
-
Password
09133434194
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Drops file in Drivers directory 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Swift copy.exe"C:/Users/Admin/AppData/Local/Temp/Swift copy.exe"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/200-5-0x0000000000400000-0x000000000043C000-memory.dmp
memory/200-7-0x0000000073580000-0x0000000073C6E000-memory.dmp
memory/200-12-0x0000000005470000-0x0000000005471000-memory.dmp
memory/200-13-0x0000000005C50000-0x0000000005C51000-memory.dmp
memory/200-14-0x00000000067C0000-0x00000000067C1000-memory.dmp
memory/200-15-0x0000000006010000-0x0000000006011000-memory.dmp
memory/3828-0-0x0000000073580000-0x0000000073C6E000-memory.dmp
memory/3828-1-0x0000000000DF0000-0x0000000000DF1000-memory.dmp
memory/3828-3-0x0000000005C50000-0x0000000005C51000-memory.dmp
memory/3828-4-0x0000000005750000-0x0000000005751000-memory.dmp