Analysis
- max time kernel
126s - max time network
126s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
22/02/2022, 08:27
General
- Target 1fbe4b287fa7ba9f14d6864a54308221.exe
- Size 897KB
- Sample220222-kce9esefd4
- SHA256 cd1f59f90ff20758cf3b925e4eb7c5a3f4b8b49d2375e2f656f65cde8e2d6aae
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.jesmedla.com
-
Port
587
-
Username
-
Password
Meckmeck123
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 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\1fbe4b287fa7ba9f14d6864a54308221.exe"C:\Users\Admin\AppData\Local\Temp\1fbe4b287fa7ba9f14d6864a54308221.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\1fbe4b287fa7ba9f14d6864a54308221.exe"C:\Users\Admin\AppData\Local\Temp\1fbe4b287fa7ba9f14d6864a54308221.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/752-63-0x0000000000400000-0x000000000043C000-memory.dmp
memory/752-61-0x0000000000400000-0x000000000043C000-memory.dmp
memory/752-68-0x00000000049D1000-0x00000000049D2000-memory.dmp
memory/752-67-0x00000000049D0000-0x00000000049D1000-memory.dmp
memory/752-66-0x0000000074B6E000-0x0000000074B6F000-memory.dmp
memory/752-65-0x0000000000400000-0x000000000043C000-memory.dmp
memory/752-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/752-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/752-60-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1532-54-0x0000000000B00000-0x0000000000BE6000-memory.dmp
memory/1532-55-0x0000000074B6E000-0x0000000074B6F000-memory.dmp
memory/1532-59-0x0000000000610000-0x000000000064C000-memory.dmp
memory/1532-58-0x0000000005790000-0x000000000584C000-memory.dmp
memory/1532-57-0x0000000004E00000-0x0000000004E01000-memory.dmp
memory/1532-56-0x0000000000440000-0x0000000000450000-memory.dmp