Analysis
- max time kernel
149s - max time network
114s - platform
windows10_x64 - resource
win10v200722 - submitted
22/09/2020, 12:00
General
- Target SecuriteInfo.com.Generic.mg.994c2b46c2ce88f0.25415.exe
- Size 731KB
- Sample200922-tgskdatqln
- SHA256 dc4eaa151b01375e0ba2392396b60e6abebab99e5590c93ab23ee3063aba5eb5
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.dms-train.com
-
Port
587
-
Username
-
Password
general2017
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.994c2b46c2ce88f0.25415.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.994c2b46c2ce88f0.25415.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:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DqeFxC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp687F.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.994c2b46c2ce88f0.25415.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.994c2b46c2ce88f0.25415.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.994c2b46c2ce88f0.25415.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.994c2b46c2ce88f0.25415.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3808-21-0x0000000005710000-0x0000000005711000-memory.dmp
memory/3808-16-0x0000000073E20000-0x000000007450E000-memory.dmp
memory/3808-13-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3816-5-0x00000000052C0000-0x00000000052C1000-memory.dmp
memory/3816-9-0x00000000056E0000-0x000000000571B000-memory.dmp
memory/3816-10-0x0000000006040000-0x0000000006041000-memory.dmp
memory/3816-8-0x0000000005E20000-0x0000000005E77000-memory.dmp
memory/3816-7-0x00000000050E0000-0x00000000050E3000-memory.dmp
memory/3816-6-0x00000000050D0000-0x00000000050D1000-memory.dmp
memory/3816-0-0x0000000073E20000-0x000000007450E000-memory.dmp
memory/3816-4-0x00000000050F0000-0x00000000050F1000-memory.dmp
memory/3816-3-0x0000000005720000-0x0000000005721000-memory.dmp
memory/3816-1-0x0000000000800000-0x0000000000801000-memory.dmp