Analysis
- max time kernel
139s - max time network
115s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
06/03/2023, 08:31
General
- Target SOA.exe
- Size 314KB
- Sample230306-keq4psbc93
- SHA256 2c5117280800871fbceb13a571a8d602c17f3c08247c8ccf546bb9dc8adda73e
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.wecaresvc.com
-
Port
587
-
Username
-
Password
5ak97py6z
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 3 IoCs
- 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 2 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.
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SOA.exe"C:\Users\Admin\AppData\Local\Temp\SOA.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\loxichhi.exe"C:\Users\Admin\AppData\Local\Temp\loxichhi.exe" C:\Users\Admin\AppData\Local\Temp\lyiiqiwn.dn2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\loxichhi.exe"C:\Users\Admin\AppData\Local\Temp\loxichhi.exe"3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Temp\loxichhi.exe"C:\Users\Admin\AppData\Local\Temp\loxichhi.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
loxichhi.exe
loxichhi.exe
loxichhi.exe
loxichhi.exe
lszjn.ofd
lyiiqiwn.dn
memory/4036-153-0x0000000005410000-0x0000000005420000-memory.dmp
memory/4036-155-0x0000000005410000-0x0000000005420000-memory.dmp
memory/4036-147-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4036-149-0x00000000059D0000-0x0000000005F74000-memory.dmp
memory/4036-150-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4036-152-0x0000000005410000-0x0000000005420000-memory.dmp
memory/4036-144-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4036-151-0x0000000005410000-0x0000000005420000-memory.dmp
memory/4036-154-0x0000000005350000-0x00000000053B6000-memory.dmp
memory/4036-146-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4036-156-0x0000000006B20000-0x0000000006BB2000-memory.dmp
memory/4036-157-0x0000000006AF0000-0x0000000006AFA000-memory.dmp
memory/4036-158-0x0000000006BE0000-0x0000000006C30000-memory.dmp
memory/4036-159-0x0000000006F60000-0x0000000007122000-memory.dmp
memory/4036-166-0x0000000006E30000-0x0000000006ECC000-memory.dmp
memory/4036-167-0x0000000005410000-0x0000000005420000-memory.dmp
memory/4036-168-0x0000000005410000-0x0000000005420000-memory.dmp
memory/4036-169-0x0000000005410000-0x0000000005420000-memory.dmp
memory/4036-170-0x0000000005410000-0x0000000005420000-memory.dmp