Analysis
- max time kernel
145s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20250610-en - resource tags
- submitted
01/07/2025, 07:13
General
- Target Procentdelene.exe
- Size 870KB
- Sample250701-h17bps1yby
- SHA256 1eb25e230346fb5ff10dfd8daad216200205b958046fb2729b8666ba2f18f2a9
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://inhanoi.net.vn
-
Port
21
-
Username
-
Password
^TSt3!FK$UBA
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.
- 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 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: 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\Procentdelene.exe"C:\Users\Admin\AppData\Local\Temp\Procentdelene.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Procentdelene.exe"C:\Users\Admin\AppData\Local\Temp\Procentdelene.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 v16
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/2860-32-0x0000000034C80000-0x0000000035224000-memory.dmp
memory/2860-34-0x0000000035330000-0x0000000035396000-memory.dmp
memory/2860-41-0x00000000353B0000-0x00000000353C0000-memory.dmp
memory/2860-28-0x00000000771C8000-0x00000000771C9000-memory.dmp
memory/2860-29-0x0000000077269000-0x000000007726A000-memory.dmp
memory/2860-30-0x00000000004C0000-0x0000000001714000-memory.dmp
memory/2860-40-0x0000000077269000-0x000000007726A000-memory.dmp
memory/2860-31-0x00000000004C0000-0x0000000000500000-memory.dmp
memory/2860-33-0x00000000353B0000-0x00000000353C0000-memory.dmp
memory/2860-39-0x0000000001720000-0x0000000002460000-memory.dmp
memory/2860-35-0x0000000035CA0000-0x0000000035CF0000-memory.dmp
memory/2860-36-0x0000000035CF0000-0x0000000035D82000-memory.dmp
memory/2860-37-0x0000000035DC0000-0x0000000035DCA000-memory.dmp
memory/4540-25-0x0000000003500000-0x0000000004240000-memory.dmp
memory/4540-26-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4540-27-0x0000000003500000-0x0000000004240000-memory.dmp