Analysis
- max time kernel
145s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
02/05/2024, 13:37
General
- Target DATASHEET_Quote Required.exe
- Size 364KB
- Sample240502-qws8aacb26
- SHA256 037afb04ecb79c472588e6f1b3571abb8903af2fc86f1a8ca2e2acb63c14335b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.ru
-
Port
587
-
Username
-
Password
marcellinus360
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DATASHEET_Quote Required.exe"C:\Users\Admin\AppData\Local\Temp\DATASHEET_Quote Required.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\DATASHEET_Quote Required.exe"C:\Users\Admin\AppData\Local\Temp\DATASHEET_Quote Required.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4156 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/1516-28-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/1516-37-0x00000000016B0000-0x000000000283C000-memory.dmp
memory/1516-40-0x00000000366A0000-0x00000000366AA000-memory.dmp
memory/1516-23-0x00000000016B0000-0x000000000283C000-memory.dmp
memory/1516-39-0x0000000036440000-0x00000000364D2000-memory.dmp
memory/1516-25-0x0000000077D08000-0x0000000077D09000-memory.dmp
memory/1516-26-0x0000000077C81000-0x0000000077DA1000-memory.dmp
memory/1516-38-0x00000000363F0000-0x0000000036440000-memory.dmp
memory/1516-34-0x0000000000450000-0x0000000000492000-memory.dmp
memory/1516-36-0x00000000355D0000-0x0000000035636000-memory.dmp
memory/1516-32-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/1516-35-0x0000000035660000-0x0000000035C04000-memory.dmp
memory/3252-33-0x0000000004B10000-0x0000000005C9C000-memory.dmp
memory/3252-21-0x0000000077C81000-0x0000000077DA1000-memory.dmp
memory/3252-20-0x0000000004B10000-0x0000000005C9C000-memory.dmp
memory/3252-24-0x0000000004B10000-0x0000000005C9C000-memory.dmp
memory/3252-22-0x0000000010004000-0x0000000010005000-memory.dmp