Analysis
- max time kernel
145s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
09/12/2024, 10:53
General
- Target rendels_1023200000000000305.exe
- Size 979KB
- Sample241209-my6dvazlen
- SHA256 186a1d9c4703d9498b26d88451e31018ff66b7f9f135e0ed93f9ac10aa485753
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.carbognin.it
-
Port
21
-
Username
-
Password
59Cif8wZUH#X
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
- 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\rendels_1023200000000000305.exe"C:\Users\Admin\AppData\Local\Temp\rendels_1023200000000000305.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rendels_1023200000000000305.exe"C:\Users\Admin\AppData\Local\Temp\rendels_1023200000000000305.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/1940-22-0x0000000034CA0000-0x0000000035244000-memory.dmp
memory/1940-21-0x0000000000490000-0x00000000004D2000-memory.dmp
memory/1940-29-0x0000000072D5E000-0x0000000072D5F000-memory.dmp
memory/1940-27-0x0000000035980000-0x000000003598A000-memory.dmp
memory/1940-15-0x00000000016F0000-0x00000000023EA000-memory.dmp
memory/1940-16-0x0000000077C68000-0x0000000077C69000-memory.dmp
memory/1940-17-0x0000000077C85000-0x0000000077C86000-memory.dmp
memory/1940-19-0x0000000077BE1000-0x0000000077D01000-memory.dmp
memory/1940-26-0x00000000358B0000-0x0000000035942000-memory.dmp
memory/1940-18-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/1940-20-0x0000000072D5E000-0x0000000072D5F000-memory.dmp
memory/1940-25-0x0000000035850000-0x00000000358A0000-memory.dmp
memory/1940-23-0x0000000035350000-0x00000000353B6000-memory.dmp
memory/1940-24-0x00000000016F0000-0x00000000023EA000-memory.dmp
memory/4856-11-0x00000000032E0000-0x0000000003FDA000-memory.dmp
memory/4856-12-0x0000000077BE1000-0x0000000077D01000-memory.dmp
memory/4856-14-0x00000000032E0000-0x0000000003FDA000-memory.dmp
memory/4856-13-0x00000000748D5000-0x00000000748D6000-memory.dmp