Analysis
- max time kernel
130s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20220331-en - submitted
07/04/2022, 09:23
General
- Target 264c1c10f5b7f7f1892fc9b42882ad79.exe
- Size 515KB
- Sample220407-lcf2dsebg9
- SHA256 efc0dcbe7726bbca854d51057a8525f34832de01f2054718af061fcdfd24a913
Malware Config
Extracted
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agenttesla
-
Protocol
smtp
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Host
server6.magsnet.net
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Port
587
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Username
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Password
War708090@
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\264c1c10f5b7f7f1892fc9b42882ad79.exe"C:\Users\Admin\AppData\Local\Temp\264c1c10f5b7f7f1892fc9b42882ad79.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\oUdWKAb.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\oUdWKAb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF36D.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\264c1c10f5b7f7f1892fc9b42882ad79.exe"C:\Users\Admin\AppData\Local\Temp\264c1c10f5b7f7f1892fc9b42882ad79.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\264c1c10f5b7f7f1892fc9b42882ad79.exe"C:\Users\Admin\AppData\Local\Temp\264c1c10f5b7f7f1892fc9b42882ad79.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
264c1c10f5b7f7f1892fc9b42882ad79.exe.log
tmpF36D.tmp
memory/4268-153-0x0000000006C20000-0x0000000006C70000-memory.dmp
memory/4268-137-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4560-145-0x00000000080A0000-0x000000000871A000-memory.dmp
memory/4560-147-0x0000000005295000-0x0000000005297000-memory.dmp
memory/4560-152-0x0000000007D70000-0x0000000007D78000-memory.dmp
memory/4560-151-0x0000000007D90000-0x0000000007DAA000-memory.dmp
memory/4560-135-0x00000000058D0000-0x0000000005EF8000-memory.dmp
memory/4560-140-0x00000000060A0000-0x0000000006106000-memory.dmp
memory/4560-150-0x0000000007C80000-0x0000000007C8E000-memory.dmp
memory/4560-139-0x0000000005880000-0x00000000058A2000-memory.dmp
memory/4560-149-0x0000000007CD0000-0x0000000007D66000-memory.dmp
memory/4560-141-0x0000000005490000-0x00000000054AE000-memory.dmp
memory/4560-142-0x0000000006D40000-0x0000000006D72000-memory.dmp
memory/4560-143-0x00000000710C0000-0x000000007110C000-memory.dmp
memory/4560-144-0x0000000006D20000-0x0000000006D3E000-memory.dmp
memory/4560-148-0x0000000007AC0000-0x0000000007ACA000-memory.dmp
memory/4560-146-0x0000000007A50000-0x0000000007A6A000-memory.dmp
memory/4560-132-0x0000000002E20000-0x0000000002E56000-memory.dmp
memory/4764-125-0x00000000058C0000-0x0000000005E64000-memory.dmp
memory/4764-127-0x0000000005370000-0x000000000537A000-memory.dmp
memory/4764-129-0x0000000009060000-0x00000000090C6000-memory.dmp
memory/4764-124-0x0000000000930000-0x00000000009B6000-memory.dmp
memory/4764-126-0x00000000053B0000-0x0000000005442000-memory.dmp
memory/4764-128-0x0000000008BB0000-0x0000000008C4C000-memory.dmp