Analysis
- max time kernel
134s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
15/04/2024, 13:12
General
- Target SKM_C3350i2402291223.bat.exe
- Size 743KB
- Sample240415-qfg53she21
- SHA256 04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.hd-izmir.com
-
Port
587
-
Username
-
Password
i123455O
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.hd-izmir.com
-
Port
587
-
Username
-
Password
i123455O
-
Email to
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 WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- 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).
- 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
Processes
-
C:\Users\Admin\AppData\Local\Temp\SKM_C3350i2402291223.bat.exe"C:\Users\Admin\AppData\Local\Temp\SKM_C3350i2402291223.bat.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\HUvCjedP.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HUvCjedP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9EEF.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SKM_C3350i2402291223.bat.exe"C:\Users\Admin\AppData\Local\Temp\SKM_C3350i2402291223.bat.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
SKM_C3350i2402291223.bat.exe.log
__PSScriptPolicyTest_0zydloaq.gxu.ps1
tmp9EEF.tmp
memory/2840-71-0x0000000004F80000-0x0000000004F90000-memory.dmp
memory/2840-70-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/2840-66-0x0000000006920000-0x0000000006970000-memory.dmp
memory/2840-28-0x0000000004F80000-0x0000000004F90000-memory.dmp
memory/2840-27-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/2840-25-0x0000000005100000-0x0000000005166000-memory.dmp
memory/2840-21-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3884-16-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/3884-60-0x00000000070B0000-0x0000000007146000-memory.dmp
memory/3884-69-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/3884-17-0x0000000004520000-0x0000000004530000-memory.dmp
memory/3884-20-0x0000000004BE0000-0x0000000005208000-memory.dmp
memory/3884-65-0x0000000007150000-0x0000000007158000-memory.dmp
memory/3884-18-0x0000000004520000-0x0000000004530000-memory.dmp
memory/3884-64-0x0000000007170000-0x000000000718A000-memory.dmp
memory/3884-63-0x0000000007070000-0x0000000007084000-memory.dmp
memory/3884-62-0x0000000007060000-0x000000000706E000-memory.dmp
memory/3884-61-0x0000000007030000-0x0000000007041000-memory.dmp
memory/3884-15-0x0000000004570000-0x00000000045A6000-memory.dmp
memory/3884-59-0x0000000006EA0000-0x0000000006EAA000-memory.dmp
memory/3884-26-0x0000000005380000-0x00000000053A2000-memory.dmp
memory/3884-58-0x0000000006E30000-0x0000000006E4A000-memory.dmp
memory/3884-29-0x0000000005430000-0x0000000005496000-memory.dmp
memory/3884-39-0x0000000005610000-0x0000000005964000-memory.dmp
memory/3884-40-0x0000000005AF0000-0x0000000005B0E000-memory.dmp
memory/3884-41-0x0000000005B30000-0x0000000005B7C000-memory.dmp
memory/3884-42-0x000000007FD80000-0x000000007FD90000-memory.dmp
memory/3884-43-0x00000000060B0000-0x00000000060E2000-memory.dmp
memory/3884-44-0x0000000070840000-0x000000007088C000-memory.dmp
memory/3884-54-0x0000000006090000-0x00000000060AE000-memory.dmp
memory/3884-56-0x0000000006D00000-0x0000000006DA3000-memory.dmp
memory/3884-55-0x0000000004520000-0x0000000004530000-memory.dmp
memory/3884-57-0x0000000007470000-0x0000000007AEA000-memory.dmp
memory/4228-5-0x00000000057E0000-0x00000000057EA000-memory.dmp
memory/4228-4-0x0000000005950000-0x0000000005960000-memory.dmp
memory/4228-6-0x0000000006B20000-0x0000000006B32000-memory.dmp
memory/4228-8-0x0000000006B50000-0x0000000006B5C000-memory.dmp
memory/4228-24-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4228-7-0x0000000006B40000-0x0000000006B48000-memory.dmp
memory/4228-9-0x0000000006B80000-0x0000000006C04000-memory.dmp
memory/4228-10-0x000000000A660000-0x000000000A6FC000-memory.dmp
memory/4228-3-0x0000000005730000-0x00000000057C2000-memory.dmp
memory/4228-0-0x0000000000CA0000-0x0000000000D5C000-memory.dmp
memory/4228-2-0x0000000005DD0000-0x0000000006374000-memory.dmp
memory/4228-1-0x0000000074BC0000-0x0000000075370000-memory.dmp