Analysis
- max time kernel
66s - max time network
64s - platform
windows7_x64 - resource
win7-20230705-en - resource tags
- submitted
06/07/2023, 11:14
General
- Target 235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe
- Size 750KB
- Sample230706-nbzs8abe7x
- SHA256 235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.nutiribio.com
-
Port
587
-
Username
-
Password
zGNVO(l5
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe"C:\Users\Admin\AppData\Local\Temp\235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe"C:\Users\Admin\AppData\Local\Temp\235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2968-66-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2968-68-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2968-72-0x0000000004C30000-0x0000000004C70000-memory.dmp
memory/2968-71-0x0000000004C30000-0x0000000004C70000-memory.dmp
memory/2968-70-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2968-64-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2968-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2968-61-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2968-62-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2968-63-0x0000000000400000-0x0000000000430000-memory.dmp
memory/3012-55-0x00000000048B0000-0x00000000048F0000-memory.dmp
memory/3012-60-0x0000000002010000-0x0000000002042000-memory.dmp
memory/3012-54-0x0000000000090000-0x0000000000150000-memory.dmp
memory/3012-59-0x0000000005470000-0x00000000054DA000-memory.dmp
memory/3012-58-0x00000000005E0000-0x00000000005EC000-memory.dmp
memory/3012-57-0x00000000048B0000-0x00000000048F0000-memory.dmp
memory/3012-56-0x00000000005D0000-0x00000000005E4000-memory.dmp