Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
31/10/2024, 09:40
General
- Target whatsappjpg.exe
- Size 724KB
- Sample241031-lncs4stqfs
- SHA256 fb89c14504a9c08ddc006305975b11a20f0595e1f2ad7bd9475ba5c245eda0f6
Malware Config
Extracted
-
Protocol
ftp
-
Host
mail.hearing-vision.com
-
Port
21
-
Username
-
Password
LILKOOLL14!
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://mail.hearing-vision.com
-
Port
21
-
Username
-
Password
LILKOOLL14!
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- 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 1 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
- Suspicious use of SetThreadContext 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\whatsappjpg.exe"C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe"C:\Users\Admin\AppData\Local\Temp\whatsappjpg.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/1652-22-0x0000000000490000-0x00000000004D2000-memory.dmp
memory/1652-23-0x00000000387A0000-0x0000000038D44000-memory.dmp
memory/1652-32-0x0000000072ED0000-0x0000000073680000-memory.dmp
memory/1652-31-0x0000000072EDE000-0x0000000072EDF000-memory.dmp
memory/1652-18-0x0000000077E45000-0x0000000077E46000-memory.dmp
memory/1652-17-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/1652-19-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/1652-20-0x0000000077DA1000-0x0000000077EC1000-memory.dmp
memory/1652-29-0x00000000396A0000-0x00000000396AA000-memory.dmp
memory/1652-21-0x0000000072EDE000-0x0000000072EDF000-memory.dmp
memory/1652-16-0x0000000077E28000-0x0000000077E29000-memory.dmp
memory/1652-24-0x0000000038620000-0x0000000038686000-memory.dmp
memory/1652-25-0x0000000072ED0000-0x0000000073680000-memory.dmp
memory/1652-26-0x0000000039410000-0x00000000394A2000-memory.dmp
memory/1652-27-0x00000000394E0000-0x0000000039530000-memory.dmp
memory/1652-28-0x0000000039530000-0x00000000395CC000-memory.dmp
memory/4916-14-0x0000000077DA1000-0x0000000077EC1000-memory.dmp
memory/4916-13-0x0000000077DA1000-0x0000000077EC1000-memory.dmp
memory/4916-15-0x0000000010004000-0x0000000010005000-memory.dmp