Analysis
- max time kernel
129s - max time network
135s - platform
windows7_x64 - resource
win7-20220414-en - submitted
12/07/2022, 11:11
General
- Target 70fa5fc5ca4c4748f8cca88b28c7110c.exe
- Size 169KB
- Sample220712-m99kmsadc4
- SHA256 5193e7d006b375ac296ea34ab8917842faf6e0eeea196ad9319ea28d8ffcab30
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
xvdUCau3
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
xvdUCau3
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\70fa5fc5ca4c4748f8cca88b28c7110c.exe"C:\Users\Admin\AppData\Local\Temp\70fa5fc5ca4c4748f8cca88b28c7110c.exe"1⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1672-67-0x00000000774B0000-0x0000000077659000-memory.dmp
memory/1672-55-0x000000001B260000-0x000000001B2E6000-memory.dmp
memory/1672-56-0x0000000000960000-0x00000000009AC000-memory.dmp
memory/1672-57-0x000007FEFBED1000-0x000007FEFBED3000-memory.dmp
memory/1672-54-0x0000000000CF0000-0x0000000000D1E000-memory.dmp
memory/1672-70-0x00000000774B0000-0x0000000077659000-memory.dmp
memory/1672-69-0x000000001C500000-0x000000001C53A000-memory.dmp
memory/1672-68-0x00000000774B0000-0x0000000077659000-memory.dmp
memory/1928-64-0x00000000024EB000-0x000000000250A000-memory.dmp
memory/1928-65-0x00000000024E4000-0x00000000024E7000-memory.dmp
memory/1928-66-0x00000000024EB000-0x000000000250A000-memory.dmp
memory/1928-63-0x000000001B6E0000-0x000000001B9DF000-memory.dmp
memory/1928-61-0x000007FEEBA80000-0x000007FEEC5DD000-memory.dmp
memory/1928-62-0x00000000024E4000-0x00000000024E7000-memory.dmp
memory/1928-60-0x000007FEEC5E0000-0x000007FEED003000-memory.dmp