Analysis
- max time kernel
136s - max time network
114s - platform
windows10_x64 - resource
win10v20201028 - submitted
08/12/2020, 16:45
General
- Target sup.exe
- Size 537KB
- Sample201208-sw8jcds91s
- SHA256 72b63832c576de64ecf5cf7ef03f9658ebd495c9ecac7ce9a3e1bbf7bde38e75
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.virtualbridge-qatar.com
-
Port
587
-
Username
-
Password
Vbt@dana99
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\sup.exe"C:\Users\Admin\AppData\Local\Temp\sup.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\sup.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3256-13-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3256-21-0x0000000005D60000-0x0000000005D61000-memory.dmp
memory/3256-16-0x0000000073CE0000-0x00000000743CE000-memory.dmp
memory/4696-9-0x0000000005360000-0x000000000536E000-memory.dmp
memory/4696-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp
memory/4696-10-0x00000000077C0000-0x000000000783D000-memory.dmp
memory/4696-11-0x0000000007E60000-0x0000000007E61000-memory.dmp
memory/4696-12-0x00000000078C0000-0x00000000078C1000-memory.dmp
memory/4696-8-0x0000000007930000-0x0000000007931000-memory.dmp
memory/4696-7-0x0000000004E50000-0x0000000004E51000-memory.dmp
memory/4696-6-0x0000000004DB0000-0x0000000004DB1000-memory.dmp
memory/4696-5-0x0000000005390000-0x0000000005391000-memory.dmp
memory/4696-3-0x0000000000500000-0x0000000000501000-memory.dmp