Analysis
- max time kernel
91s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
27/10/2022, 13:19
General
- Target SecuriteInfo.com.Win32.PWSX-gen.32752.8998.exe
- Size 624KB
- Sample221027-qkhbmsccb6
- SHA256 1038c10cdf14d50b7bf14e8d6b0c2eb9c8849837ff19ac03e79ad16ffc2c2143
Malware Config
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
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 6 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\SecuriteInfo.com.Win32.PWSX-gen.32752.8998.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32752.8998.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\dWFewQODhQwDpU.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dWFewQODhQwDpU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6571.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32752.8998.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.32752.8998.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
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Downloads
tmp6571.tmp
memory/4000-150-0x0000000006170000-0x000000000618E000-memory.dmp
memory/4000-152-0x0000000006EC0000-0x0000000006EDA000-memory.dmp
memory/4000-157-0x00000000071F0000-0x00000000071F8000-memory.dmp
memory/4000-156-0x0000000007210000-0x000000000722A000-memory.dmp
memory/4000-146-0x00000000056A0000-0x0000000005706000-memory.dmp
memory/4000-139-0x00000000022B0000-0x00000000022E6000-memory.dmp
memory/4000-154-0x0000000007150000-0x00000000071E6000-memory.dmp
memory/4000-142-0x0000000004D80000-0x00000000053A8000-memory.dmp
memory/4000-153-0x0000000006F50000-0x0000000006F5A000-memory.dmp
memory/4000-145-0x0000000004CA0000-0x0000000004D06000-memory.dmp
memory/4000-144-0x0000000004C00000-0x0000000004C22000-memory.dmp
memory/4000-147-0x0000000005BC0000-0x0000000005BDE000-memory.dmp
memory/4000-155-0x0000000007100000-0x000000000710E000-memory.dmp
memory/4000-151-0x0000000007510000-0x0000000007B8A000-memory.dmp
memory/4000-148-0x0000000006190000-0x00000000061C2000-memory.dmp
memory/4000-149-0x00000000710C0000-0x000000007110C000-memory.dmp
memory/4536-143-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4536-158-0x0000000006C70000-0x0000000006CC0000-memory.dmp
memory/4936-132-0x00000000006E0000-0x0000000000782000-memory.dmp
memory/4936-134-0x0000000005140000-0x00000000051D2000-memory.dmp
memory/4936-133-0x00000000056F0000-0x0000000005C94000-memory.dmp
memory/4936-136-0x0000000008B90000-0x0000000008C2C000-memory.dmp
memory/4936-135-0x0000000005110000-0x000000000511A000-memory.dmp