Analysis
- max time kernel
73s - max time network
75s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
07/06/2023, 13:35
General
- Target Invoice 38129337.exe
- Size 801KB
- Sample230607-qvnleabf21
- SHA256 dcd2a1a571f36c2739e2c358225fb7bfa4c8ff7379755aedcc68e1cbd71bc076
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.gmail.com
-
Port
587
-
Username
-
Password
iebtzpacgzyullvo
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.exe"C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KkPQlgqdilF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KkPQlgqdilF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB896.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.exe"C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmpB896.tmp
memory/524-78-0x00000000024F0000-0x0000000002530000-memory.dmp
memory/624-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/624-68-0x0000000000400000-0x0000000000430000-memory.dmp
memory/624-79-0x0000000004A10000-0x0000000004A50000-memory.dmp
memory/624-77-0x0000000000400000-0x0000000000430000-memory.dmp
memory/624-73-0x0000000000400000-0x0000000000430000-memory.dmp
memory/624-71-0x0000000000400000-0x0000000000430000-memory.dmp
memory/624-66-0x0000000000400000-0x0000000000430000-memory.dmp
memory/624-67-0x0000000000400000-0x0000000000430000-memory.dmp
memory/624-69-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2008-56-0x00000000006A0000-0x00000000006B4000-memory.dmp
memory/2008-54-0x0000000000D50000-0x0000000000E1E000-memory.dmp
memory/2008-65-0x0000000004E20000-0x0000000004E54000-memory.dmp
memory/2008-57-0x0000000004CE0000-0x0000000004D20000-memory.dmp
memory/2008-59-0x00000000051C0000-0x000000000522C000-memory.dmp
memory/2008-55-0x0000000004CE0000-0x0000000004D20000-memory.dmp
memory/2008-58-0x0000000000850000-0x000000000085C000-memory.dmp