Analysis
- max time kernel
147s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
18/04/2024, 09:49
General
- Target BKG#SGN2106728.PDF.exe
- Size 880KB
- Sample240418-ltdbtsah2z
- SHA256 cb06339a87bdd6284086a97545c32dc8a3eb3701c7642543e7c327d0539005f9
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.flexwelltour.com
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Port
587
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Username
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Password
w$5DC?c5
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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 11 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\BKG#SGN2106728.PDF.exe"C:\Users\Admin\AppData\Local\Temp\BKG#SGN2106728.PDF.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\BKG#SGN2106728.PDF.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\eDnxmGWzJ.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\eDnxmGWzJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp971F.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\BKG#SGN2106728.PDF.exe"C:\Users\Admin\AppData\Local\Temp\BKG#SGN2106728.PDF.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\BKG#SGN2106728.PDF.exe"C:\Users\Admin\AppData\Local\Temp\BKG#SGN2106728.PDF.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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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_s2xipood.yvx.ps1
tmp971F.tmp
memory/416-100-0x0000000005130000-0x0000000005140000-memory.dmp
memory/416-99-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/416-98-0x00000000069E0000-0x0000000006A30000-memory.dmp
memory/416-49-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/416-51-0x0000000005130000-0x0000000005140000-memory.dmp
memory/416-37-0x0000000000400000-0x0000000000442000-memory.dmp
memory/648-83-0x0000000007740000-0x000000000774A000-memory.dmp
memory/648-52-0x00000000063C0000-0x00000000063DE000-memory.dmp
memory/648-96-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/648-89-0x0000000007A10000-0x0000000007A2A000-memory.dmp
memory/648-88-0x0000000007910000-0x0000000007924000-memory.dmp
memory/648-81-0x0000000007D10000-0x000000000838A000-memory.dmp
memory/648-20-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/648-80-0x00000000075D0000-0x0000000007673000-memory.dmp
memory/648-22-0x0000000005000000-0x0000000005010000-memory.dmp
memory/648-23-0x0000000005000000-0x0000000005010000-memory.dmp
memory/648-29-0x00000000055E0000-0x0000000005602000-memory.dmp
memory/648-56-0x0000000007590000-0x00000000075C2000-memory.dmp
memory/648-59-0x00000000754A0000-0x00000000754EC000-memory.dmp
memory/648-57-0x000000007F080000-0x000000007F090000-memory.dmp
memory/648-55-0x0000000005000000-0x0000000005010000-memory.dmp
memory/2136-36-0x0000000005C20000-0x0000000005C86000-memory.dmp
memory/2136-19-0x0000000005350000-0x0000000005978000-memory.dmp
memory/2136-97-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2136-15-0x0000000004CE0000-0x0000000004D16000-memory.dmp
memory/2136-90-0x00000000078B0000-0x00000000078B8000-memory.dmp
memory/2136-17-0x0000000002960000-0x0000000002970000-memory.dmp
memory/2136-53-0x00000000062D0000-0x000000000631C000-memory.dmp
memory/2136-54-0x0000000002960000-0x0000000002970000-memory.dmp
memory/2136-35-0x0000000005BB0000-0x0000000005C16000-memory.dmp
memory/2136-48-0x0000000005D90000-0x00000000060E4000-memory.dmp
memory/2136-16-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/2136-60-0x000000007F420000-0x000000007F430000-memory.dmp
memory/2136-58-0x00000000754A0000-0x00000000754EC000-memory.dmp
memory/2136-87-0x00000000077C0000-0x00000000077CE000-memory.dmp
memory/2136-78-0x0000000006830000-0x000000000684E000-memory.dmp
memory/2136-85-0x0000000007790000-0x00000000077A1000-memory.dmp
memory/2136-18-0x0000000002960000-0x0000000002970000-memory.dmp
memory/2136-82-0x0000000007590000-0x00000000075AA000-memory.dmp
memory/2136-84-0x0000000007810000-0x00000000078A6000-memory.dmp
memory/3164-5-0x00000000055E0000-0x00000000055EA000-memory.dmp
memory/3164-10-0x00000000089E0000-0x0000000008A8C000-memory.dmp
memory/3164-9-0x0000000006330000-0x0000000006344000-memory.dmp
memory/3164-8-0x0000000006310000-0x000000000631E000-memory.dmp
memory/3164-46-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/3164-6-0x0000000005870000-0x000000000590C000-memory.dmp
memory/3164-1-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/3164-7-0x0000000005840000-0x0000000005858000-memory.dmp
memory/3164-50-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/3164-4-0x0000000005600000-0x0000000005610000-memory.dmp
memory/3164-3-0x0000000005630000-0x00000000056C2000-memory.dmp
memory/3164-2-0x0000000005BE0000-0x0000000006184000-memory.dmp
memory/3164-0-0x0000000000B20000-0x0000000000C02000-memory.dmp