Analysis
- max time kernel
103s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20250410-en - resource tags
- submitted
30/04/2025, 04:45
General
- Target TNT AWB #8013580.exe
- Size 705KB
- Sample250430-fdextswvbz
- SHA256 db21a85e8ccccbc75bf1aba64addb02897493d199cfe2ee19c67faa8c51bf9c7
Malware Config
Extracted
-
Protocol
ftp
-
Host
ftp.fosna.net
-
Port
21
-
Username
-
Password
(=8fPSH$KO_!
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.fosna.net
-
Port
21
-
Username
-
Password
(=8fPSH$KO_!
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- 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 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 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\TNT AWB #8013580.exe"C:\Users\Admin\AppData\Local\Temp\TNT AWB #8013580.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\Local\Temp\TNT AWB #8013580.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\fZECwakrXUwVfj.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\fZECwakrXUwVfj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF29.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\TNT AWB #8013580.exe"C:\Users\Admin\AppData\Local\Temp\TNT AWB #8013580.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\TNT AWB #8013580.exe"C:\Users\Admin\AppData\Local\Temp\TNT AWB #8013580.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_d4d0quwf.4v2.ps1
tmpBF29.tmp
memory/556-78-0x00000000074C0000-0x00000000074CE000-memory.dmp
memory/556-48-0x0000000005F60000-0x0000000005F7E000-memory.dmp
memory/556-70-0x0000000007130000-0x000000000714E000-memory.dmp
memory/556-51-0x0000000070E60000-0x0000000070EAC000-memory.dmp
memory/556-77-0x0000000007490000-0x00000000074A1000-memory.dmp
memory/556-50-0x00000000070F0000-0x0000000007122000-memory.dmp
memory/556-49-0x0000000005F80000-0x0000000005FCC000-memory.dmp
memory/556-80-0x00000000075D0000-0x00000000075EA000-memory.dmp
memory/556-87-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/556-76-0x0000000007510000-0x00000000075A6000-memory.dmp
memory/556-40-0x0000000005950000-0x0000000005CA4000-memory.dmp
memory/556-19-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/556-20-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/556-79-0x00000000074D0000-0x00000000074E4000-memory.dmp
memory/556-81-0x00000000075B0000-0x00000000075B8000-memory.dmp
memory/556-25-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2072-0-0x000000007479E000-0x000000007479F000-memory.dmp
memory/2072-2-0x0000000005420000-0x00000000059C4000-memory.dmp
memory/2072-1-0x0000000000570000-0x0000000000626000-memory.dmp
memory/2072-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp
memory/2072-6-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2072-47-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2072-5-0x0000000005150000-0x00000000051EC000-memory.dmp
memory/2072-10-0x0000000006260000-0x00000000062E6000-memory.dmp
memory/2072-9-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2072-8-0x000000007479E000-0x000000007479F000-memory.dmp
memory/2072-7-0x0000000005380000-0x0000000005398000-memory.dmp
memory/2072-4-0x0000000004EB0000-0x0000000004EBA000-memory.dmp
memory/2884-16-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2884-23-0x0000000005E50000-0x0000000005EB6000-memory.dmp
memory/2884-73-0x0000000007FB0000-0x000000000862A000-memory.dmp
memory/2884-75-0x00000000079E0000-0x00000000079EA000-memory.dmp
memory/2884-72-0x0000000007830000-0x00000000078D3000-memory.dmp
memory/2884-52-0x0000000070E60000-0x0000000070EAC000-memory.dmp
memory/2884-15-0x0000000005070000-0x00000000050A6000-memory.dmp
memory/2884-74-0x0000000007960000-0x000000000797A000-memory.dmp
memory/2884-24-0x0000000005FF0000-0x0000000006056000-memory.dmp
memory/2884-22-0x0000000005680000-0x00000000056A2000-memory.dmp
memory/2884-18-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2884-17-0x0000000005720000-0x0000000005D48000-memory.dmp
memory/2884-88-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/5128-45-0x0000000000400000-0x0000000000442000-memory.dmp
memory/5128-89-0x0000000006ED0000-0x0000000006F20000-memory.dmp