Analysis
- max time kernel
53s - max time network
56s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
16/06/2024, 01:25
General
- Target 51e166ed74183299244a9fc3aad6dbbce0dd8ea4c7784bd5e89a1344d97d7b32.exe
- Size 731KB
- Sample240616-btfrvatdnf
- SHA256 51e166ed74183299244a9fc3aad6dbbce0dd8ea4c7784bd5e89a1344d97d7b32
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.raczki.pl
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Port
587
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Username
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Password
obslugaradygminy
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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
- 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 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\51e166ed74183299244a9fc3aad6dbbce0dd8ea4c7784bd5e89a1344d97d7b32.exe"C:\Users\Admin\AppData\Local\Temp\51e166ed74183299244a9fc3aad6dbbce0dd8ea4c7784bd5e89a1344d97d7b32.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\51e166ed74183299244a9fc3aad6dbbce0dd8ea4c7784bd5e89a1344d97d7b32.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\HfvyLWN.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\HfvyLWN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA3B2.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\51e166ed74183299244a9fc3aad6dbbce0dd8ea4c7784bd5e89a1344d97d7b32.exe"C:\Users\Admin\AppData\Local\Temp\51e166ed74183299244a9fc3aad6dbbce0dd8ea4c7784bd5e89a1344d97d7b32.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
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_zhxmlwwr.3hs.ps1
tmpA3B2.tmp
memory/2044-73-0x0000000006850000-0x000000000686E000-memory.dmp
memory/2044-49-0x0000000006240000-0x000000000625E000-memory.dmp
memory/2044-78-0x00000000077F0000-0x0000000007886000-memory.dmp
memory/2044-77-0x00000000075E0000-0x00000000075EA000-memory.dmp
memory/2044-74-0x0000000007260000-0x0000000007303000-memory.dmp
memory/2044-53-0x0000000070000000-0x000000007004C000-memory.dmp
memory/2044-90-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/2044-52-0x0000000006810000-0x0000000006842000-memory.dmp
memory/2044-50-0x00000000065B0000-0x00000000065FC000-memory.dmp
memory/2044-79-0x0000000007770000-0x0000000007781000-memory.dmp
memory/2044-42-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/2044-22-0x0000000005290000-0x00000000052B2000-memory.dmp
memory/2044-20-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/2044-24-0x00000000053A0000-0x0000000005406000-memory.dmp
memory/2044-23-0x0000000005330000-0x0000000005396000-memory.dmp
memory/2044-25-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/2892-47-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2892-92-0x0000000006700000-0x0000000006750000-memory.dmp
memory/3496-16-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/3496-7-0x0000000005680000-0x0000000005690000-memory.dmp
memory/3496-1-0x00000000006F0000-0x00000000007A8000-memory.dmp
memory/3496-2-0x00000000056A0000-0x0000000005C44000-memory.dmp
memory/3496-3-0x0000000005190000-0x0000000005222000-memory.dmp
memory/3496-4-0x0000000005250000-0x000000000525A000-memory.dmp
memory/3496-51-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/3496-0-0x00000000751EE000-0x00000000751EF000-memory.dmp
memory/3496-5-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/3496-10-0x00000000751EE000-0x00000000751EF000-memory.dmp
memory/3496-6-0x0000000006A30000-0x0000000006A52000-memory.dmp
memory/3496-9-0x0000000007DA0000-0x0000000007E3C000-memory.dmp
memory/3496-8-0x0000000006720000-0x00000000067A4000-memory.dmp
memory/4984-75-0x0000000008120000-0x000000000879A000-memory.dmp
memory/4984-83-0x0000000007E20000-0x0000000007E3A000-memory.dmp
memory/4984-26-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/4984-54-0x0000000070000000-0x000000007004C000-memory.dmp
memory/4984-15-0x0000000002EA0000-0x0000000002ED6000-memory.dmp
memory/4984-81-0x0000000007D10000-0x0000000007D1E000-memory.dmp
memory/4984-82-0x0000000007D20000-0x0000000007D34000-memory.dmp
memory/4984-76-0x0000000007AE0000-0x0000000007AFA000-memory.dmp
memory/4984-84-0x0000000007E00000-0x0000000007E08000-memory.dmp
memory/4984-91-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/4984-17-0x00000000058D0000-0x0000000005EF8000-memory.dmp
memory/4984-18-0x00000000751E0000-0x0000000075990000-memory.dmp
memory/4984-41-0x00000000061B0000-0x0000000006504000-memory.dmp
memory/4984-19-0x00000000751E0000-0x0000000075990000-memory.dmp