Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
16/10/2024, 05:40
General
- Target SecuriteInfo.com.BackDoor.AgentTeslaNET.37.28277.26776.exe
- Size 863KB
- Sample241016-gcvsbsvfrb
- SHA256 e46f2d7b2f17430fbf6670db5f785f22a38cec22cf879259032b1edb1d074c41
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.iaa-airferight.com
-
Port
587
-
Username
-
Password
Asaprocky11
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 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 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).
- System Location Discovery: System Language Discovery 1 TTPs 5 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.28277.26776.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.28277.26776.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\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.28277.26776.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cdkQpcBsOj.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\cdkQpcBsOj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA1BE.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.28277.26776.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.28277.26776.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
SecuriteInfo.com.BackDoor.AgentTeslaNET.37.28277.26776.exe.log
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_mzdns0zd.aiy.ps1
tmpA1BE.tmp
memory/2908-91-0x0000000006C70000-0x0000000006CC0000-memory.dmp
memory/2908-36-0x0000000000400000-0x0000000000440000-memory.dmp
memory/3248-74-0x0000000007300000-0x00000000073A3000-memory.dmp
memory/3248-18-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3248-78-0x00000000076B0000-0x0000000007746000-memory.dmp
memory/3248-81-0x0000000007670000-0x0000000007684000-memory.dmp
memory/3248-15-0x0000000004B80000-0x0000000004BB6000-memory.dmp
memory/3248-17-0x00000000052F0000-0x0000000005918000-memory.dmp
memory/3248-16-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3248-79-0x0000000007630000-0x0000000007641000-memory.dmp
memory/3248-53-0x00000000713E0000-0x000000007142C000-memory.dmp
memory/3248-65-0x00000000070D0000-0x00000000070EE000-memory.dmp
memory/3248-21-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3248-82-0x0000000007770000-0x000000000778A000-memory.dmp
memory/3248-50-0x0000000006100000-0x000000000611E000-memory.dmp
memory/3248-83-0x0000000007750000-0x0000000007758000-memory.dmp
memory/3248-90-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3656-39-0x00000000062E0000-0x0000000006634000-memory.dmp
memory/3656-76-0x0000000007C00000-0x0000000007C1A000-memory.dmp
memory/3656-89-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3656-31-0x0000000006270000-0x00000000062D6000-memory.dmp
memory/3656-80-0x0000000007E30000-0x0000000007E3E000-memory.dmp
memory/3656-25-0x0000000006200000-0x0000000006266000-memory.dmp
memory/3656-51-0x0000000006980000-0x00000000069CC000-memory.dmp
memory/3656-23-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3656-52-0x00000000078B0000-0x00000000078E2000-memory.dmp
memory/3656-57-0x00000000713E0000-0x000000007142C000-memory.dmp
memory/3656-20-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3656-19-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/3656-77-0x0000000007C70000-0x0000000007C7A000-memory.dmp
memory/3656-24-0x0000000006160000-0x0000000006182000-memory.dmp
memory/3656-75-0x0000000008240000-0x00000000088BA000-memory.dmp
memory/4820-10-0x0000000007440000-0x00000000074C2000-memory.dmp
memory/4820-9-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/4820-8-0x0000000074D4E000-0x0000000074D4F000-memory.dmp
memory/4820-49-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/4820-7-0x0000000005AD0000-0x0000000005AE2000-memory.dmp
memory/4820-6-0x00000000058B0000-0x000000000594C000-memory.dmp
memory/4820-5-0x00000000057B0000-0x00000000057BA000-memory.dmp
memory/4820-4-0x0000000074D40000-0x00000000754F0000-memory.dmp
memory/4820-3-0x0000000005610000-0x00000000056A2000-memory.dmp
memory/4820-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp
memory/4820-2-0x0000000005AE0000-0x0000000006084000-memory.dmp
memory/4820-1-0x0000000000C70000-0x0000000000D4E000-memory.dmp