Analysis
- max time kernel
133s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
24/05/2022, 05:53
General
- Target SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe
- Size 698KB
- Sample220524-glahrabaan
- SHA256 b3587ff41c4ab5cfd37aa464d4f32ec71e86860b9089da3ea4df459a3d44b446
Malware Config
Extracted
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agenttesla
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https://api.telegram.org/bot5187728823:AAGLMGn_JlHiLgjLPDeSA29u69fic0Upi8Y/sendDocument
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 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 SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.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\GTYxjpRYxkC.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\GTYxjpRYxkC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1879.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.AgentTesla.ETH.MTB.8683.exe"2⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s camsvc1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp1879.tmp
memory/1516-150-0x0000000006B20000-0x0000000006B3E000-memory.dmp
memory/1516-147-0x0000000006560000-0x000000000657E000-memory.dmp
memory/1516-153-0x00000000078F0000-0x00000000078FA000-memory.dmp
memory/1516-151-0x0000000007EC0000-0x000000000853A000-memory.dmp
memory/1516-152-0x0000000007870000-0x000000000788A000-memory.dmp
memory/1516-158-0x0000000007B90000-0x0000000007B98000-memory.dmp
memory/1516-155-0x0000000007AA0000-0x0000000007AAE000-memory.dmp
memory/1516-148-0x0000000007520000-0x0000000007552000-memory.dmp
memory/1516-140-0x0000000005720000-0x0000000005D48000-memory.dmp
memory/1516-149-0x0000000070810000-0x000000007085C000-memory.dmp
memory/1516-154-0x0000000007AF0000-0x0000000007B86000-memory.dmp
memory/1516-138-0x0000000002BD0000-0x0000000002C06000-memory.dmp
memory/1516-157-0x0000000007BB0000-0x0000000007BCA000-memory.dmp
memory/1516-145-0x0000000005D50000-0x0000000005D72000-memory.dmp
memory/1516-146-0x0000000005E10000-0x0000000005E76000-memory.dmp
memory/2428-130-0x0000000000B90000-0x0000000000C44000-memory.dmp
memory/2428-131-0x0000000005BA0000-0x0000000006144000-memory.dmp
memory/2428-132-0x00000000055F0000-0x0000000005682000-memory.dmp
memory/2428-135-0x0000000009700000-0x0000000009766000-memory.dmp
memory/2428-134-0x00000000090A0000-0x000000000913C000-memory.dmp
memory/2428-133-0x00000000057E0000-0x00000000057EA000-memory.dmp
memory/3024-144-0x0000000000400000-0x000000000043A000-memory.dmp
memory/3024-156-0x0000000006220000-0x0000000006270000-memory.dmp