Analysis
- max time kernel
97s - max time network
96s - platform
windows10_x64 - resource
win10v20201028 - submitted
11/01/2021, 08:14
General
- Target Re.invoice.exe
- Size 424KB
- Sample210111-vrjgwbcac2
- SHA256 a08a2ea7f574259a68c3cc7d0ff2c1f46e9a57e9802cf5fc41803787564451e8
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
srvc13.turhost.com
-
Port
587
-
Username
-
Password
italik2015
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Drops startup file 2 IoCs
- 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.
- 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 SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Re.invoice.exe"C:\Users\Admin\AppData\Local\Temp\Re.invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Re.invoice.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\I$s#$lT3ssl.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\Re.invoice.exe"C:\Users\Admin\AppData\Local\Temp\Re.invoice.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/200-33-0x0000000005140000-0x0000000005141000-memory.dmp
memory/200-36-0x0000000006090000-0x0000000006091000-memory.dmp
memory/200-35-0x0000000006800000-0x0000000006801000-memory.dmp
memory/200-17-0x0000000073A30000-0x000000007411E000-memory.dmp
memory/200-14-0x0000000000400000-0x000000000043C000-memory.dmp
memory/972-5-0x0000000005100000-0x0000000005164000-memory.dmp
memory/972-6-0x00000000051A0000-0x00000000051A1000-memory.dmp
memory/972-7-0x00000000055D0000-0x00000000055D1000-memory.dmp
memory/972-8-0x0000000005B70000-0x0000000005B71000-memory.dmp
memory/972-2-0x0000000073A30000-0x000000007411E000-memory.dmp
memory/972-13-0x00000000055A0000-0x00000000055AF000-memory.dmp
memory/972-3-0x00000000007C0000-0x00000000007C1000-memory.dmp
memory/2900-10-0x0000000073A30000-0x000000007411E000-memory.dmp
memory/2900-21-0x00000000071C0000-0x00000000071C1000-memory.dmp
memory/2900-22-0x0000000007260000-0x0000000007261000-memory.dmp
memory/2900-23-0x00000000074B0000-0x00000000074B1000-memory.dmp
memory/2900-25-0x0000000007530000-0x0000000007531000-memory.dmp
memory/2900-26-0x0000000007390000-0x0000000007391000-memory.dmp
memory/2900-27-0x0000000007950000-0x0000000007951000-memory.dmp
memory/2900-28-0x0000000007C60000-0x0000000007C61000-memory.dmp
memory/2900-29-0x00000000089E0000-0x00000000089E1000-memory.dmp
memory/2900-30-0x0000000008900000-0x0000000008901000-memory.dmp
memory/2900-31-0x0000000008970000-0x0000000008971000-memory.dmp
memory/2900-12-0x0000000006B60000-0x0000000006B61000-memory.dmp
memory/2900-11-0x00000000064F0000-0x00000000064F1000-memory.dmp