Analysis
- max time kernel
134s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
22/03/2022, 19:01
General
- Target 4ba8f0e01a6ce7584d77df4cf2fd3381.exe
- Size 1.1MB
- Sample220322-xn9cvsdbel
- SHA256 b201b65e53319f2231eff2a1f1ae2d80669f0b91bdeee6a750f2a1f4749df6e0
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
DANIEL@3116
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
DANIEL@3116
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
- Adds Run key to start application 2 TTPs 1 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 7 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4ba8f0e01a6ce7584d77df4cf2fd3381.exe"C:\Users\Admin\AppData\Local\Temp\4ba8f0e01a6ce7584d77df4cf2fd3381.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\EYtVSq.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EYtVSq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE8D7.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\4ba8f0e01a6ce7584d77df4cf2fd3381.exe"C:\Users\Admin\AppData\Local\Temp\4ba8f0e01a6ce7584d77df4cf2fd3381.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1420-146-0x0000000005C40000-0x0000000005CA6000-memory.dmp
memory/1420-153-0x0000000006780000-0x00000000067B2000-memory.dmp
memory/1420-162-0x0000000007890000-0x0000000007898000-memory.dmp
memory/1420-161-0x00000000078B0000-0x00000000078CA000-memory.dmp
memory/1420-160-0x00000000077A0000-0x00000000077AE000-memory.dmp
memory/1420-159-0x00000000077F0000-0x0000000007886000-memory.dmp
memory/1420-137-0x0000000004C90000-0x0000000004CC6000-memory.dmp
memory/1420-158-0x00000000075E0000-0x00000000075EA000-memory.dmp
memory/1420-157-0x0000000006940000-0x000000000695A000-memory.dmp
memory/1420-141-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
memory/1420-140-0x0000000074760000-0x0000000074F10000-memory.dmp
memory/1420-142-0x0000000004DC2000-0x0000000004DC3000-memory.dmp
memory/1420-144-0x00000000053B0000-0x00000000053D2000-memory.dmp
memory/1420-145-0x0000000005B20000-0x0000000005B86000-memory.dmp
memory/1420-156-0x0000000007C40000-0x00000000082BA000-memory.dmp
memory/1420-148-0x0000000006270000-0x000000000628E000-memory.dmp
memory/1420-139-0x0000000005400000-0x0000000005A28000-memory.dmp
memory/1420-155-0x0000000006760000-0x000000000677E000-memory.dmp
memory/1420-154-0x00000000709C0000-0x0000000070A0C000-memory.dmp
memory/1420-152-0x000000007FDF0000-0x000000007FDF1000-memory.dmp
memory/1420-151-0x0000000004DC5000-0x0000000004DC7000-memory.dmp
memory/1664-130-0x0000000000B50000-0x0000000000C72000-memory.dmp
memory/1664-132-0x00000000059E0000-0x0000000005F84000-memory.dmp
memory/1664-131-0x0000000074760000-0x0000000074F10000-memory.dmp
memory/1664-136-0x0000000008F40000-0x0000000008FDC000-memory.dmp
memory/1664-135-0x0000000005430000-0x00000000059D4000-memory.dmp
memory/1664-134-0x0000000005590000-0x000000000559A000-memory.dmp
memory/1664-133-0x00000000054E0000-0x0000000005572000-memory.dmp
memory/5076-150-0x00000000065A0000-0x00000000065F0000-memory.dmp
memory/5076-143-0x0000000000400000-0x000000000043A000-memory.dmp
memory/5076-149-0x0000000005180000-0x0000000005724000-memory.dmp
memory/5076-147-0x0000000074760000-0x0000000074F10000-memory.dmp