Analysis
- max time kernel
56s - max time network
51s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
26/04/2024, 12:44
General
- Target Packing List PDF.bat.exe
- Size 822KB
- Sample240426-pygftscf4x
- SHA256 1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.fascia-arch.com
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Port
587
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Username
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Password
HERbertstown1987
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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 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).
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.exe"C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.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\Packing List PDF.bat.exe"2⤵
- 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\CmxzrHBB.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp76D6.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.exe"C:\Users\Admin\AppData\Local\Temp\Packing List PDF.bat.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
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_gr0rldkt.wdm.ps1
tmp76D6.tmp
memory/2728-90-0x00000000067A0000-0x00000000067F0000-memory.dmp
memory/2728-45-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2824-23-0x00000000051D0000-0x00000000051F2000-memory.dmp
memory/2824-75-0x0000000007420000-0x000000000742A000-memory.dmp
memory/2824-88-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/2824-81-0x00000000076D0000-0x00000000076D8000-memory.dmp
memory/2824-14-0x00000000027C0000-0x00000000027F6000-memory.dmp
memory/2824-15-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/2824-16-0x0000000005240000-0x0000000005868000-memory.dmp
memory/2824-80-0x00000000076F0000-0x000000000770A000-memory.dmp
memory/2824-79-0x00000000075F0000-0x0000000007604000-memory.dmp
memory/2824-20-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/2824-19-0x00000000027B0000-0x00000000027C0000-memory.dmp
memory/2824-50-0x0000000006650000-0x0000000006682000-memory.dmp
memory/2824-73-0x0000000007A00000-0x000000000807A000-memory.dmp
memory/2824-25-0x0000000005950000-0x00000000059B6000-memory.dmp
memory/2824-24-0x00000000058E0000-0x0000000005946000-memory.dmp
memory/2824-74-0x00000000073B0000-0x00000000073CA000-memory.dmp
memory/2824-72-0x0000000007080000-0x0000000007123000-memory.dmp
memory/2824-41-0x0000000005B80000-0x0000000005ED4000-memory.dmp
memory/2824-61-0x0000000006630000-0x000000000664E000-memory.dmp
memory/2824-51-0x000000006FCA0000-0x000000006FCEC000-memory.dmp
memory/2824-48-0x0000000006330000-0x000000000637C000-memory.dmp
memory/2824-46-0x0000000006090000-0x00000000060AE000-memory.dmp
memory/3120-18-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/3120-76-0x00000000072D0000-0x0000000007366000-memory.dmp
memory/3120-87-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/3120-62-0x000000006FCA0000-0x000000006FCEC000-memory.dmp
memory/3120-17-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/3120-21-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/3120-78-0x0000000007280000-0x000000000728E000-memory.dmp
memory/3120-77-0x0000000007250000-0x0000000007261000-memory.dmp
memory/4040-5-0x0000000004E50000-0x0000000004E5A000-memory.dmp
memory/4040-7-0x0000000005010000-0x0000000005024000-memory.dmp
memory/4040-6-0x0000000006050000-0x0000000006070000-memory.dmp
memory/4040-49-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/4040-0-0x00000000003D0000-0x00000000004A4000-memory.dmp
memory/4040-9-0x000000000BEA0000-0x000000000BF3C000-memory.dmp
memory/4040-3-0x0000000004E80000-0x0000000004F12000-memory.dmp
memory/4040-2-0x0000000005430000-0x00000000059D4000-memory.dmp
memory/4040-4-0x0000000005020000-0x0000000005030000-memory.dmp
memory/4040-8-0x0000000008D80000-0x0000000008E04000-memory.dmp
memory/4040-1-0x0000000074690000-0x0000000074E40000-memory.dmp