Analysis
- max time kernel
146s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240226-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.
- 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 17 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Purchase order 4500381478.exe"C:\Users\Admin\AppData\Local\Temp\Purchase order 4500381478.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\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\tmp4D50.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⤵
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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⤵
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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
__PSScriptPolicyTest_yed0fxkq.njq.ps1
tmp4D50.tmp
memory/2544-27-0x0000000005010000-0x0000000005020000-memory.dmp
memory/2544-25-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/2544-22-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2544-28-0x00000000052D0000-0x0000000005336000-memory.dmp
memory/2544-46-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/2544-47-0x0000000005010000-0x0000000005020000-memory.dmp
memory/2544-68-0x0000000006950000-0x00000000069A0000-memory.dmp
memory/4072-5-0x0000000005BE0000-0x0000000005BEA000-memory.dmp
memory/4072-6-0x0000000005FF0000-0x0000000006004000-memory.dmp
memory/4072-11-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4072-12-0x0000000005970000-0x0000000005980000-memory.dmp
memory/4072-9-0x0000000006C40000-0x0000000006CD6000-memory.dmp
memory/4072-8-0x0000000006C00000-0x0000000006C0E000-memory.dmp
memory/4072-7-0x0000000006030000-0x000000000603A000-memory.dmp
memory/4072-10-0x0000000006ED0000-0x0000000006F6C000-memory.dmp
memory/4072-4-0x0000000005970000-0x0000000005980000-memory.dmp
memory/4072-0-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4072-3-0x00000000059E0000-0x0000000005A72000-memory.dmp
memory/4072-2-0x0000000006040000-0x00000000065E4000-memory.dmp
memory/4072-26-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4072-1-0x0000000000F10000-0x0000000001010000-memory.dmp
memory/4476-29-0x00000000058B0000-0x00000000058D2000-memory.dmp
memory/4476-49-0x0000000006DF0000-0x0000000006E22000-memory.dmp
memory/4476-30-0x0000000005950000-0x00000000059B6000-memory.dmp
memory/4476-21-0x0000000005500000-0x0000000005510000-memory.dmp
memory/4476-36-0x00000000062E0000-0x0000000006634000-memory.dmp
memory/4476-41-0x00000000068A0000-0x00000000068BE000-memory.dmp
memory/4476-42-0x0000000006930000-0x000000000697C000-memory.dmp
memory/4476-43-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4476-44-0x0000000005500000-0x0000000005510000-memory.dmp
memory/4476-45-0x0000000005500000-0x0000000005510000-memory.dmp
memory/4476-20-0x0000000005500000-0x0000000005510000-memory.dmp
memory/4476-19-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4476-48-0x000000007EEA0000-0x000000007EEB0000-memory.dmp
memory/4476-23-0x0000000005B40000-0x0000000006168000-memory.dmp
memory/4476-50-0x00000000707F0000-0x000000007083C000-memory.dmp
memory/4476-60-0x0000000006DD0000-0x0000000006DEE000-memory.dmp
memory/4476-61-0x0000000007890000-0x0000000007933000-memory.dmp
memory/4476-62-0x00000000081C0000-0x000000000883A000-memory.dmp
memory/4476-63-0x0000000007B40000-0x0000000007B5A000-memory.dmp
memory/4476-64-0x0000000007BB0000-0x0000000007BBA000-memory.dmp
memory/4476-66-0x0000000007DC0000-0x0000000007E56000-memory.dmp
memory/4476-67-0x0000000007D40000-0x0000000007D51000-memory.dmp
memory/4476-17-0x0000000002F50000-0x0000000002F86000-memory.dmp
memory/4476-69-0x0000000007D70000-0x0000000007D7E000-memory.dmp
memory/4476-70-0x0000000007D80000-0x0000000007D94000-memory.dmp
memory/4476-71-0x0000000007E80000-0x0000000007E9A000-memory.dmp
memory/4476-72-0x0000000007E60000-0x0000000007E68000-memory.dmp
memory/4476-75-0x0000000074B70000-0x0000000075320000-memory.dmp