Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
02/11/2024, 04:06
General
- Target 3e9c1ebae528d18117474a40600829255b9bb82b6a91a1174f29595f701b04c6.exe
- Size 1.2MB
- Sample241102-epkrsayflb
- SHA256 3e9c1ebae528d18117474a40600829255b9bb82b6a91a1174f29595f701b04c6
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.mbarieservicesltd.com
-
Port
587
-
Username
-
Password
*o9H+18Q4%;M
-
Email to
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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 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: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3e9c1ebae528d18117474a40600829255b9bb82b6a91a1174f29595f701b04c6.exe"C:\Users\Admin\AppData\Local\Temp\3e9c1ebae528d18117474a40600829255b9bb82b6a91a1174f29595f701b04c6.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3e9c1ebae528d18117474a40600829255b9bb82b6a91a1174f29595f701b04c6.exe"C:\Users\Admin\AppData\Local\Temp\3e9c1ebae528d18117474a40600829255b9bb82b6a91a1174f29595f701b04c6.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
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/1176-39-0x00000000382A0000-0x0000000038332000-memory.dmp
memory/1176-34-0x0000000000820000-0x0000000000850000-memory.dmp
memory/1176-42-0x0000000038440000-0x0000000038602000-memory.dmp
memory/1176-41-0x00000000383F0000-0x0000000038440000-memory.dmp
memory/1176-40-0x0000000038350000-0x000000003835A000-memory.dmp
memory/1176-20-0x0000000001A80000-0x00000000049C2000-memory.dmp
memory/1176-35-0x0000000037760000-0x0000000037D04000-memory.dmp
memory/1176-38-0x0000000001A80000-0x00000000049C2000-memory.dmp
memory/1176-33-0x0000000000820000-0x0000000001A74000-memory.dmp
memory/1176-36-0x0000000037680000-0x00000000376E6000-memory.dmp
memory/1580-16-0x0000000004DB0000-0x0000000007CF2000-memory.dmp
memory/1580-15-0x0000000004DB0000-0x0000000007CF2000-memory.dmp
memory/1580-19-0x0000000004DB0000-0x0000000007CF2000-memory.dmp
memory/1580-18-0x0000000074165000-0x0000000074166000-memory.dmp
memory/1580-17-0x0000000077511000-0x0000000077631000-memory.dmp