Analysis
- max time kernel
129s - max time network
122s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
07/06/2024, 01:42
General
- Target 644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c.exe
- Size 720KB
- Sample240607-b4m9nsfe5w
- SHA256 644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c
Malware Config
Extracted
-
Protocol
smtp
-
Host
welingz.com
-
Port
587
-
Username
-
Password
G~*3]M[P~v1G
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
welingz.com
-
Port
587
-
Username
-
Password
G~*3]M[P~v1G
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c.exe"C:\Users\Admin\AppData\Local\Temp\644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c.exe"1⤵
- Checks computer location settings
- 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\Local\Temp\644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c.exe"C:\Users\Admin\AppData\Local\Temp\644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
644891cf40945ade3e65dd36449f3e7ed0ff69db811695ae998bf3b7e7a8579c.exe.log
__PSScriptPolicyTest_by4jsc11.jyl.ps1
memory/2480-11-0x0000000000400000-0x0000000000440000-memory.dmp
memory/2480-20-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/2480-62-0x00000000067F0000-0x0000000006840000-memory.dmp
memory/2480-17-0x00000000020F0000-0x0000000002156000-memory.dmp
memory/2480-63-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/2480-14-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/2524-5-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/2524-9-0x0000000008FA0000-0x0000000009022000-memory.dmp
memory/2524-10-0x0000000006430000-0x00000000064CC000-memory.dmp
memory/2524-8-0x0000000007B70000-0x0000000007B80000-memory.dmp
memory/2524-7-0x0000000007B50000-0x0000000007B5E000-memory.dmp
memory/2524-6-0x0000000007B30000-0x0000000007B46000-memory.dmp
memory/2524-15-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/2524-0-0x000000007478E000-0x000000007478F000-memory.dmp
memory/2524-4-0x0000000004BE0000-0x0000000004BEA000-memory.dmp
memory/2524-3-0x0000000007680000-0x0000000007712000-memory.dmp
memory/2524-2-0x0000000007B90000-0x0000000008134000-memory.dmp
memory/2524-1-0x00000000006F0000-0x00000000007A6000-memory.dmp
memory/3216-28-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/3216-37-0x0000000006300000-0x0000000006332000-memory.dmp
memory/3216-21-0x0000000004DA0000-0x0000000004DC2000-memory.dmp
memory/3216-19-0x0000000005120000-0x0000000005748000-memory.dmp
memory/3216-34-0x00000000057C0000-0x0000000005B14000-memory.dmp
memory/3216-33-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/3216-35-0x0000000005D50000-0x0000000005D6E000-memory.dmp
memory/3216-36-0x0000000005E00000-0x0000000005E4C000-memory.dmp
memory/3216-38-0x0000000070400000-0x000000007044C000-memory.dmp
memory/3216-48-0x0000000006350000-0x000000000636E000-memory.dmp
memory/3216-49-0x0000000006DD0000-0x0000000006E73000-memory.dmp
memory/3216-22-0x0000000004EC0000-0x0000000004F26000-memory.dmp
memory/3216-51-0x0000000007080000-0x000000000709A000-memory.dmp
memory/3216-50-0x0000000007700000-0x0000000007D7A000-memory.dmp
memory/3216-52-0x00000000070F0000-0x00000000070FA000-memory.dmp
memory/3216-53-0x0000000007300000-0x0000000007396000-memory.dmp
memory/3216-54-0x0000000007280000-0x0000000007291000-memory.dmp
memory/3216-55-0x00000000072B0000-0x00000000072BE000-memory.dmp
memory/3216-56-0x00000000072C0000-0x00000000072D4000-memory.dmp
memory/3216-57-0x00000000073C0000-0x00000000073DA000-memory.dmp
memory/3216-58-0x00000000073A0000-0x00000000073A8000-memory.dmp
memory/3216-61-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/3216-18-0x0000000074780000-0x0000000074F30000-memory.dmp
memory/3216-16-0x0000000002450000-0x0000000002486000-memory.dmp