Analysis
- max time kernel
114s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
14/02/2024, 14:26
General
- Target lt.exe
- Size 607KB
- Sample240214-rrve8ada7v
- SHA256 6363c6f85a5ee95ea3fd025374e8ad16aebc513f56ade341476d1e2be045479d
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.atec.com.tr
-
Port
587
-
Username
-
Password
AT-AL-2021edu
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.atec.com.tr
-
Port
587
-
Username
-
Password
AT-AL-2021edu
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- 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
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\lt.exe"C:\Users\Admin\AppData\Local\Temp\lt.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FqUkYhWoGr.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FqUkYhWoGr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79C4.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\lt.exe"C:\Users\Admin\AppData\Local\Temp\lt.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
lt.exe.log
__PSScriptPolicyTest_uq4l2jbh.0wq.ps1
tmp79C4.tmp
memory/3760-6-0x0000000005CA0000-0x0000000005D3C000-memory.dmp
memory/3760-4-0x0000000005BF0000-0x0000000005C00000-memory.dmp
memory/3760-5-0x0000000005B70000-0x0000000005B7A000-memory.dmp
memory/3760-3-0x00000000059B0000-0x0000000005A42000-memory.dmp
memory/3760-7-0x0000000005C60000-0x0000000005C72000-memory.dmp
memory/3760-8-0x0000000005C80000-0x0000000005C92000-memory.dmp
memory/3760-9-0x00000000087B0000-0x0000000008832000-memory.dmp
memory/3760-0-0x0000000000F40000-0x0000000000FDE000-memory.dmp
memory/3760-2-0x0000000006010000-0x00000000065B4000-memory.dmp
memory/3760-1-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/3760-22-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4472-55-0x00000000074E0000-0x0000000007583000-memory.dmp
memory/4472-58-0x0000000007690000-0x000000000769A000-memory.dmp
memory/4472-19-0x00000000054C0000-0x0000000005AE8000-memory.dmp
memory/4472-17-0x0000000004E80000-0x0000000004E90000-memory.dmp
memory/4472-68-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4472-64-0x0000000007940000-0x0000000007948000-memory.dmp
memory/4472-27-0x0000000005C20000-0x0000000005C86000-memory.dmp
memory/4472-25-0x0000000005320000-0x0000000005342000-memory.dmp
memory/4472-63-0x0000000007960000-0x000000000797A000-memory.dmp
memory/4472-16-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4472-37-0x0000000005D70000-0x00000000060C4000-memory.dmp
memory/4472-38-0x00000000062D0000-0x00000000062EE000-memory.dmp
memory/4472-39-0x0000000006320000-0x000000000636C000-memory.dmp
memory/4472-41-0x000000007F640000-0x000000007F650000-memory.dmp
memory/4472-40-0x00000000068E0000-0x0000000006912000-memory.dmp
memory/4472-42-0x0000000070EA0000-0x0000000070EEC000-memory.dmp
memory/4472-52-0x0000000004E80000-0x0000000004E90000-memory.dmp
memory/4472-54-0x00000000068C0000-0x00000000068DE000-memory.dmp
memory/4472-53-0x0000000004E80000-0x0000000004E90000-memory.dmp
memory/4472-14-0x0000000004D60000-0x0000000004D96000-memory.dmp
memory/4472-56-0x0000000007C60000-0x00000000082DA000-memory.dmp
memory/4472-57-0x0000000007620000-0x000000000763A000-memory.dmp
memory/4472-62-0x0000000007860000-0x0000000007874000-memory.dmp
memory/4472-59-0x00000000078A0000-0x0000000007936000-memory.dmp
memory/4472-60-0x0000000007820000-0x0000000007831000-memory.dmp
memory/4472-61-0x0000000007850000-0x000000000785E000-memory.dmp
memory/4844-18-0x0000000000400000-0x0000000000440000-memory.dmp
memory/4844-24-0x0000000002D00000-0x0000000002D10000-memory.dmp
memory/4844-26-0x00000000053F0000-0x0000000005456000-memory.dmp
memory/4844-65-0x0000000006AD0000-0x0000000006B20000-memory.dmp
memory/4844-23-0x0000000075220000-0x00000000759D0000-memory.dmp
memory/4844-69-0x0000000075220000-0x00000000759D0000-memory.dmp