Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
11/11/2024, 19:01
General
- Target 64259b9c7add94c44c563a04df7560c950413b5270db25cde2e7013e094cede2.exe
- Size 768KB
- Sample241111-xpn4basrdx
- SHA256 64259b9c7add94c44c563a04df7560c950413b5270db25cde2e7013e094cede2
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.topcats.com
-
Port
587
-
Username
-
Password
SpurS21?
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.topcats.com
-
Port
587
-
Username
-
Password
SpurS21?
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 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\64259b9c7add94c44c563a04df7560c950413b5270db25cde2e7013e094cede2.exe"C:\Users\Admin\AppData\Local\Temp\64259b9c7add94c44c563a04df7560c950413b5270db25cde2e7013e094cede2.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\xHETYXWFB.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xHETYXWFB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA950.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\64259b9c7add94c44c563a04df7560c950413b5270db25cde2e7013e094cede2.exe"C:\Users\Admin\AppData\Local\Temp\64259b9c7add94c44c563a04df7560c950413b5270db25cde2e7013e094cede2.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
64259b9c7add94c44c563a04df7560c950413b5270db25cde2e7013e094cede2.exe.log
__PSScriptPolicyTest_jcswqjl4.vzm.ps1
tmpA950.tmp
memory/544-68-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/544-60-0x0000000007010000-0x0000000007060000-memory.dmp
memory/544-36-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/544-22-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3144-55-0x0000000007450000-0x0000000007ACA000-memory.dmp
memory/3144-57-0x0000000006E80000-0x0000000006E8A000-memory.dmp
memory/3144-67-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/3144-64-0x0000000007120000-0x0000000007128000-memory.dmp
memory/3144-63-0x0000000007140000-0x000000000715A000-memory.dmp
memory/3144-16-0x00000000021B0000-0x00000000021E6000-memory.dmp
memory/3144-17-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/3144-18-0x0000000004FA0000-0x00000000055C8000-memory.dmp
memory/3144-19-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/3144-20-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/3144-62-0x0000000007040000-0x0000000007054000-memory.dmp
memory/3144-61-0x0000000007030000-0x000000000703E000-memory.dmp
memory/3144-59-0x0000000007000000-0x0000000007011000-memory.dmp
memory/3144-28-0x0000000004D30000-0x0000000004D52000-memory.dmp
memory/3144-58-0x0000000007080000-0x0000000007116000-memory.dmp
memory/3144-56-0x0000000006E00000-0x0000000006E1A000-memory.dmp
memory/3144-54-0x0000000006CB0000-0x0000000006D53000-memory.dmp
memory/3144-38-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/3144-37-0x0000000004EF0000-0x0000000004F56000-memory.dmp
memory/3144-39-0x00000000056A0000-0x00000000059F4000-memory.dmp
memory/3144-40-0x0000000005AC0000-0x0000000005ADE000-memory.dmp
memory/3144-41-0x0000000005BE0000-0x0000000005C2C000-memory.dmp
memory/3144-42-0x0000000006A70000-0x0000000006AA2000-memory.dmp
memory/3144-43-0x00000000707E0000-0x000000007082C000-memory.dmp
memory/3144-53-0x0000000006A50000-0x0000000006A6E000-memory.dmp
memory/4192-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp
memory/4192-0-0x00000000744AE000-0x00000000744AF000-memory.dmp
memory/4192-3-0x0000000005370000-0x0000000005402000-memory.dmp
memory/4192-8-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/4192-4-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/4192-5-0x0000000005350000-0x000000000535A000-memory.dmp
memory/4192-35-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/4192-6-0x0000000007E30000-0x0000000007E52000-memory.dmp
memory/4192-7-0x00000000744AE000-0x00000000744AF000-memory.dmp
memory/4192-11-0x00000000092E0000-0x000000000937C000-memory.dmp
memory/4192-10-0x0000000006780000-0x0000000006804000-memory.dmp
memory/4192-9-0x00000000064C0000-0x00000000064D0000-memory.dmp
memory/4192-1-0x0000000000870000-0x0000000000934000-memory.dmp