Analysis
- max time kernel
91s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
15/06/2022, 12:05
General
- Target f31195840636a6c887417f2e425e2850.exe
- Size 711KB
- Sample220615-n86m2aeegn
- SHA256 5c8855f5a88abfdb679fb4d3ad9cf19d9df00ae47d63b65bbdf4b4a996ab27cf
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5390947912:AAHEgjYo1gPtN1Ab-AFe3LYschZNgfjljuk/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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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\f31195840636a6c887417f2e425e2850.exe"C:\Users\Admin\AppData\Local\Temp\f31195840636a6c887417f2e425e2850.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SyDyJxygjHWatp.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SyDyJxygjHWatp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6987.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\f31195840636a6c887417f2e425e2850.exe"C:\Users\Admin\AppData\Local\Temp\f31195840636a6c887417f2e425e2850.exe"2⤵
- Accesses Microsoft Outlook profiles
- 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
f31195840636a6c887417f2e425e2850.exe.log
tmp6987.tmp
memory/932-132-0x0000000005FD0000-0x0000000006574000-memory.dmp
memory/932-133-0x0000000005AC0000-0x0000000005B52000-memory.dmp
memory/932-134-0x0000000005A50000-0x0000000005A5A000-memory.dmp
memory/932-135-0x0000000009400000-0x000000000949C000-memory.dmp
memory/932-136-0x00000000099B0000-0x0000000009A16000-memory.dmp
memory/932-131-0x0000000000FE0000-0x0000000001098000-memory.dmp
memory/3728-143-0x0000000000400000-0x000000000043A000-memory.dmp
memory/3728-155-0x00000000060C0000-0x0000000006110000-memory.dmp
memory/4956-145-0x0000000004E70000-0x0000000004E92000-memory.dmp
memory/4956-150-0x00000000063C0000-0x00000000063DE000-memory.dmp
memory/4956-139-0x0000000004890000-0x00000000048C6000-memory.dmp
memory/4956-146-0x0000000005720000-0x0000000005786000-memory.dmp
memory/4956-147-0x0000000005E20000-0x0000000005E3E000-memory.dmp
memory/4956-148-0x0000000006410000-0x0000000006442000-memory.dmp
memory/4956-149-0x0000000070E80000-0x0000000070ECC000-memory.dmp
memory/4956-141-0x0000000004F00000-0x0000000005528000-memory.dmp
memory/4956-151-0x0000000007770000-0x0000000007DEA000-memory.dmp
memory/4956-152-0x0000000007130000-0x000000000714A000-memory.dmp
memory/4956-153-0x00000000071A0000-0x00000000071AA000-memory.dmp
memory/4956-154-0x00000000073B0000-0x0000000007446000-memory.dmp
memory/4956-156-0x0000000007360000-0x000000000736E000-memory.dmp
memory/4956-157-0x0000000007470000-0x000000000748A000-memory.dmp
memory/4956-158-0x0000000007450000-0x0000000007458000-memory.dmp