Analysis
- max time kernel
148s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
07/06/2024, 01:56
General
- Target 86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe
- Size 802KB
- Sample240607-cc7dxafg4v
- SHA256 86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd
Malware Config
Extracted
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Protocol
smtp
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Host
mail.naubahar.com
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Port
587
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Username
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Password
Hum$885+Nn
Extracted
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agenttesla
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Protocol
smtp
-
Host
mail.naubahar.com
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Port
587
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Username
-
Password
Hum$885+Nn
-
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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 12 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PsFWPaHuRBf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PsFWPaHuRBf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp64C5.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"C:\Users\Admin\AppData\Local\Temp\86488d9fa7887c6129854cc21e2791c2956b9e8f5b24f838bbaeedf7f49c88cd.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_5oahnp4t.vb5.ps1
tmp64C5.tmp
memory/868-76-0x0000000007460000-0x000000000746A000-memory.dmp
memory/868-49-0x00000000060B0000-0x00000000060CE000-memory.dmp
memory/868-89-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/868-78-0x00000000075F0000-0x0000000007601000-memory.dmp
memory/868-77-0x0000000007670000-0x0000000007706000-memory.dmp
memory/868-64-0x0000000007A30000-0x00000000080AA000-memory.dmp
memory/868-69-0x00000000073F0000-0x000000000740A000-memory.dmp
memory/868-15-0x0000000004AF0000-0x0000000004B26000-memory.dmp
memory/868-17-0x00000000051A0000-0x00000000057C8000-memory.dmp
memory/868-16-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/868-18-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/868-51-0x0000000007060000-0x0000000007092000-memory.dmp
memory/868-52-0x00000000706C0000-0x000000007070C000-memory.dmp
memory/868-20-0x00000000050E0000-0x0000000005102000-memory.dmp
memory/868-62-0x00000000070A0000-0x00000000070BE000-memory.dmp
memory/868-63-0x00000000070C0000-0x0000000007163000-memory.dmp
memory/868-50-0x0000000006490000-0x00000000064DC000-memory.dmp
memory/868-34-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/868-35-0x0000000005BC0000-0x0000000005F14000-memory.dmp
memory/1900-4-0x0000000004F30000-0x0000000004F3A000-memory.dmp
memory/1900-48-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/1900-0-0x00000000750BE000-0x00000000750BF000-memory.dmp
memory/1900-9-0x00000000060E0000-0x0000000006162000-memory.dmp
memory/1900-3-0x0000000004D70000-0x0000000004E02000-memory.dmp
memory/1900-6-0x00000000053A0000-0x00000000053B6000-memory.dmp
memory/1900-5-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/1900-8-0x0000000006090000-0x00000000060A0000-memory.dmp
memory/1900-1-0x00000000002E0000-0x00000000003AA000-memory.dmp
memory/1900-2-0x00000000053D0000-0x0000000005974000-memory.dmp
memory/1900-7-0x0000000006080000-0x000000000608E000-memory.dmp
memory/1900-10-0x0000000006360000-0x00000000063FC000-memory.dmp
memory/2328-91-0x0000000006600000-0x0000000006650000-memory.dmp
memory/2328-46-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3252-22-0x0000000005CF0000-0x0000000005D56000-memory.dmp
memory/3252-65-0x00000000706C0000-0x000000007070C000-memory.dmp
memory/3252-79-0x0000000007940000-0x000000000794E000-memory.dmp
memory/3252-80-0x0000000007950000-0x0000000007964000-memory.dmp
memory/3252-82-0x0000000007A30000-0x0000000007A38000-memory.dmp
memory/3252-81-0x0000000007A50000-0x0000000007A6A000-memory.dmp
memory/3252-85-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/3252-19-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/3252-21-0x0000000005C10000-0x0000000005C76000-memory.dmp
memory/3252-28-0x00000000750B0000-0x0000000075860000-memory.dmp
memory/3252-36-0x00000000750B0000-0x0000000075860000-memory.dmp