Analysis
- max time kernel
149s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
18/01/2022, 03:31
General
- Target pre-alert KFL031321153729.exe
- Size 439KB
- Sample220118-d23bxsgegl
- SHA256 afee42ed642d4f824b52d9c32a0965c204f97edf9be9e5b4d6a8011db59e5525
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.palumalimited.com
-
Port
587
-
Username
-
Password
M*@IKAzF6,v4
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 IoCs
- Drops file in Drivers directory 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
- 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\pre-alert KFL031321153729.exe"C:\Users\Admin\AppData\Local\Temp\pre-alert KFL031321153729.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\grfvOdlg.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\grfvOdlg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp39E5.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\pre-alert KFL031321153729.exe"C:\Users\Admin\AppData\Local\Temp\pre-alert KFL031321153729.exe"2⤵
- Drops file in Drivers directory
- 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/856-131-0x0000000005050000-0x0000000005051000-memory.dmp
memory/856-132-0x0000000005100000-0x0000000005192000-memory.dmp
memory/856-133-0x0000000005740000-0x00000000057DC000-memory.dmp
memory/856-134-0x0000000005FC0000-0x0000000006564000-memory.dmp
memory/856-130-0x0000000000530000-0x00000000005A4000-memory.dmp
memory/1824-143-0x0000000005560000-0x0000000005B04000-memory.dmp
memory/1824-162-0x0000000006870000-0x000000000687A000-memory.dmp
memory/1824-139-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1824-161-0x0000000006AF0000-0x0000000006B40000-memory.dmp
memory/3824-146-0x0000000007CF0000-0x0000000007D56000-memory.dmp
memory/3824-151-0x0000000008AD0000-0x0000000008AEE000-memory.dmp
memory/3824-144-0x0000000007460000-0x0000000007482000-memory.dmp
memory/3824-145-0x0000000007C80000-0x0000000007CE6000-memory.dmp
memory/3824-141-0x0000000003360000-0x0000000003380000-memory.dmp
memory/3824-147-0x0000000008530000-0x000000000854E000-memory.dmp
memory/3824-148-0x0000000003360000-0x0000000003380000-memory.dmp
memory/3824-149-0x00000000094D0000-0x0000000009502000-memory.dmp
memory/3824-150-0x0000000070E70000-0x0000000070EBC000-memory.dmp
memory/3824-142-0x0000000003360000-0x0000000003380000-memory.dmp
memory/3824-152-0x0000000009E70000-0x000000000A4EA000-memory.dmp
memory/3824-153-0x0000000009820000-0x000000000983A000-memory.dmp
memory/3824-154-0x000000007FC60000-0x000000007FC61000-memory.dmp
memory/3824-155-0x0000000007250000-0x000000000725A000-memory.dmp
memory/3824-156-0x0000000009AB0000-0x0000000009B46000-memory.dmp
memory/3824-157-0x0000000009A60000-0x0000000009A6E000-memory.dmp
memory/3824-158-0x0000000009B70000-0x0000000009B8A000-memory.dmp
memory/3824-159-0x0000000009B50000-0x0000000009B58000-memory.dmp
memory/3824-140-0x00000000075E0000-0x0000000007C08000-memory.dmp
memory/3824-138-0x0000000006F70000-0x0000000006FA6000-memory.dmp