Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
15/06/2024, 01:12
General
- Target b5fa786e0724f8f3b5eca8af940aa58a70d34458f8be1464c084f87dcbce8eed.exe
- Size 737KB
- Sample240615-bkr4hsxerk
- SHA256 b5fa786e0724f8f3b5eca8af940aa58a70d34458f8be1464c084f87dcbce8eed
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.mail.ee
-
Port
587
-
Username
-
Password
U9rJ98bwCG
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.mail.ee
-
Port
587
-
Username
-
Password
U9rJ98bwCG
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b5fa786e0724f8f3b5eca8af940aa58a70d34458f8be1464c084f87dcbce8eed.exe"C:\Users\Admin\AppData\Local\Temp\b5fa786e0724f8f3b5eca8af940aa58a70d34458f8be1464c084f87dcbce8eed.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\lIvhSkZJs.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lIvhSkZJs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6801.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\b5fa786e0724f8f3b5eca8af940aa58a70d34458f8be1464c084f87dcbce8eed.exe"C:\Users\Admin\AppData\Local\Temp\b5fa786e0724f8f3b5eca8af940aa58a70d34458f8be1464c084f87dcbce8eed.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_yp0zn52g.bev.ps1
tmp6801.tmp
memory/3516-52-0x00000000077D0000-0x0000000007873000-memory.dmp
memory/3516-56-0x0000000007BA0000-0x0000000007BAA000-memory.dmp
memory/3516-66-0x0000000074950000-0x0000000075100000-memory.dmp
memory/3516-63-0x0000000007E50000-0x0000000007E58000-memory.dmp
memory/3516-62-0x0000000007E70000-0x0000000007E8A000-memory.dmp
memory/3516-61-0x0000000007D70000-0x0000000007D84000-memory.dmp
memory/3516-59-0x0000000007D60000-0x0000000007D6E000-memory.dmp
memory/3516-58-0x0000000007D30000-0x0000000007D41000-memory.dmp
memory/3516-14-0x0000000002F10000-0x0000000002F46000-memory.dmp
memory/3516-17-0x0000000074950000-0x0000000075100000-memory.dmp
memory/3516-16-0x0000000005970000-0x0000000005F98000-memory.dmp
memory/3516-57-0x0000000007DB0000-0x0000000007E46000-memory.dmp
memory/3516-18-0x0000000074950000-0x0000000075100000-memory.dmp
memory/3516-19-0x0000000074950000-0x0000000075100000-memory.dmp
memory/3516-21-0x0000000005820000-0x0000000005842000-memory.dmp
memory/3516-24-0x0000000006010000-0x0000000006076000-memory.dmp
memory/3516-26-0x00000000061C0000-0x0000000006514000-memory.dmp
memory/3516-55-0x0000000007B30000-0x0000000007B4A000-memory.dmp
memory/3516-54-0x0000000008170000-0x00000000087EA000-memory.dmp
memory/3516-51-0x0000000007770000-0x000000000778E000-memory.dmp
memory/3516-41-0x00000000751F0000-0x000000007523C000-memory.dmp
memory/3516-23-0x00000000058C0000-0x0000000005926000-memory.dmp
memory/3516-40-0x0000000007790000-0x00000000077C2000-memory.dmp
memory/3516-38-0x0000000006800000-0x000000000681E000-memory.dmp
memory/3516-39-0x0000000006820000-0x000000000686C000-memory.dmp
memory/3728-28-0x0000000074950000-0x0000000075100000-memory.dmp
memory/3728-67-0x0000000074950000-0x0000000075100000-memory.dmp
memory/3728-25-0x0000000074950000-0x0000000075100000-memory.dmp
memory/3728-60-0x00000000067A0000-0x00000000067F0000-memory.dmp
memory/3728-20-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4108-9-0x00000000092E0000-0x000000000937C000-memory.dmp
memory/4108-27-0x0000000074950000-0x0000000075100000-memory.dmp
memory/4108-1-0x00000000006D0000-0x000000000078E000-memory.dmp
memory/4108-8-0x0000000006C70000-0x0000000006CF4000-memory.dmp
memory/4108-2-0x0000000005930000-0x0000000005ED4000-memory.dmp
memory/4108-7-0x0000000006600000-0x0000000006610000-memory.dmp
memory/4108-0-0x000000007495E000-0x000000007495F000-memory.dmp
memory/4108-6-0x00000000065E0000-0x00000000065FA000-memory.dmp
memory/4108-5-0x0000000005400000-0x000000000540A000-memory.dmp
memory/4108-4-0x0000000074950000-0x0000000075100000-memory.dmp
memory/4108-3-0x0000000005420000-0x00000000054B2000-memory.dmp