Analysis
- max time kernel
120s - max time network
124s - platform
windows7_x64 - resource
win7-20240215-en - resource tags
- submitted
05/03/2024, 19:55
General
- Target Purchase order 4500381478.exe
- Size 996KB
- Sample240305-ym4lnagg46
- SHA256 d15a53b03ae3d6aebeb2d08c1ab71ccace7a418ea6413f73085f60154ca682e0
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
mail.oceanskylogistics.in
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Port
587
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Username
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Password
Oce@n@1234
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase order 4500381478.exe"C:\Users\Admin\AppData\Local\Temp\Purchase order 4500381478.exe"1⤵
- 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\Roaming\FbscDzk.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\FbscDzk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B78.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Purchase order 4500381478.exe"C:\Users\Admin\AppData\Local\Temp\Purchase order 4500381478.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
tmp5B78.tmp
memory/1804-0-0x0000000000930000-0x0000000000A30000-memory.dmp
memory/1804-1-0x00000000746D0000-0x0000000074DBE000-memory.dmp
memory/1804-2-0x0000000004CD0000-0x0000000004D10000-memory.dmp
memory/1804-3-0x0000000000630000-0x0000000000644000-memory.dmp
memory/1804-4-0x00000000008F0000-0x00000000008FA000-memory.dmp
memory/1804-5-0x0000000000900000-0x000000000090E000-memory.dmp
memory/1804-6-0x0000000005150000-0x00000000051E6000-memory.dmp
memory/1804-28-0x00000000746D0000-0x0000000074DBE000-memory.dmp
memory/2496-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2496-12-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2496-19-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2496-16-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2496-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2496-27-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2496-25-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2496-17-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2496-29-0x00000000746D0000-0x0000000074DBE000-memory.dmp
memory/2496-37-0x00000000746D0000-0x0000000074DBE000-memory.dmp
memory/2496-34-0x0000000004C20000-0x0000000004C60000-memory.dmp
memory/2688-32-0x000000006EB50000-0x000000006F0FB000-memory.dmp
memory/2688-33-0x000000006EB50000-0x000000006F0FB000-memory.dmp
memory/2688-31-0x0000000002980000-0x00000000029C0000-memory.dmp
memory/2688-35-0x000000006EB50000-0x000000006F0FB000-memory.dmp
memory/2688-30-0x000000006EB50000-0x000000006F0FB000-memory.dmp