Analysis
- max time kernel
60s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20230703-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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe"C:\Users\Admin\AppData\Local\Temp\235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe"2⤵
-
-
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
235f214f8493ad0784c683df8ad2b3bb3fc4125d90b900ac44241acdc43a28fa.exe.log
memory/752-139-0x00000000075C0000-0x000000000765C000-memory.dmp
memory/752-135-0x0000000005940000-0x00000000059D2000-memory.dmp
memory/752-136-0x0000000005920000-0x000000000592A000-memory.dmp
memory/752-137-0x0000000005B30000-0x0000000005B40000-memory.dmp
memory/752-138-0x0000000005B30000-0x0000000005B40000-memory.dmp
memory/752-133-0x0000000000EA0000-0x0000000000F60000-memory.dmp
memory/752-134-0x0000000005E50000-0x00000000063F4000-memory.dmp
memory/4944-140-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4944-143-0x0000000005560000-0x00000000055C6000-memory.dmp
memory/4944-144-0x0000000005630000-0x0000000005640000-memory.dmp
memory/4944-145-0x0000000006E20000-0x0000000006E70000-memory.dmp
memory/4944-146-0x0000000005630000-0x0000000005640000-memory.dmp