Analysis
- max time kernel
135s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
29/09/2023, 07:02
General
- Target purchase order.exe
- Size 672KB
- Sample230929-htsjzagc8x
- SHA256 003569fddd9c4c72cfd68b3188ffc2700138a90212a85aedbf040e1f68f9acdd
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.wecaresvc.com
-
Port
587
-
Username
-
Password
u9367gk8qc
-
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 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
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\purchase order.exe"C:\Users\Admin\AppData\Local\Temp\purchase order.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vCYQeZkjnqHPFw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp553F.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\purchase order.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
purchase order.exe.log
tmp553F.tmp
memory/748-12-0x0000000074520000-0x0000000074CD0000-memory.dmp
memory/748-11-0x0000000008320000-0x000000000832C000-memory.dmp
memory/748-4-0x0000000005200000-0x0000000005292000-memory.dmp
memory/748-5-0x0000000005370000-0x0000000005380000-memory.dmp
memory/748-6-0x0000000005130000-0x000000000513A000-memory.dmp
memory/748-7-0x0000000005300000-0x0000000005356000-memory.dmp
memory/748-8-0x0000000005D60000-0x0000000005EE6000-memory.dmp
memory/748-9-0x0000000005EF0000-0x0000000006096000-memory.dmp
memory/748-10-0x000000007F410000-0x000000007F420000-memory.dmp
memory/748-24-0x0000000074520000-0x0000000074CD0000-memory.dmp
memory/748-0-0x0000000000690000-0x000000000073E000-memory.dmp
memory/748-13-0x0000000005370000-0x0000000005380000-memory.dmp
memory/748-3-0x00000000057B0000-0x0000000005D54000-memory.dmp
memory/748-16-0x0000000006950000-0x0000000006992000-memory.dmp
memory/748-14-0x000000007F410000-0x000000007F420000-memory.dmp
memory/748-2-0x0000000005160000-0x00000000051FC000-memory.dmp
memory/748-15-0x0000000006A70000-0x0000000006AF0000-memory.dmp
memory/748-1-0x0000000074520000-0x0000000074CD0000-memory.dmp
memory/4904-26-0x00000000053F0000-0x0000000005456000-memory.dmp
memory/4904-23-0x0000000074520000-0x0000000074CD0000-memory.dmp
memory/4904-25-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/4904-20-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4904-28-0x0000000006980000-0x00000000069D0000-memory.dmp
memory/4904-29-0x0000000074520000-0x0000000074CD0000-memory.dmp
memory/4904-30-0x00000000052E0000-0x00000000052F0000-memory.dmp