Analysis
- max time kernel
144s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220331-en - submitted
12/04/2022, 11:31
General
- Target 2022-04-12.exe
- Size 840KB
- Sample220412-nmpsdsbbgk
- SHA256 6dafa379cab8cf6a545e3e018c8afa2dd888f7e168bacf2a24de7ae8644aeef5
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.tranpotescamdonic.us
-
Port
587
-
Username
-
Password
#fKav*!OJ6
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.tranpotescamdonic.us
-
Port
587
-
Username
-
Password
#fKav*!OJ6
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
- Executes dropped EXE 1 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2022-04-12.exe"C:\Users\Admin\AppData\Local\Temp\2022-04-12.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
InstallUtil.exe
InstallUtil.exe
memory/916-124-0x00000000009D0000-0x0000000000AA8000-memory.dmp
memory/916-125-0x0000000005970000-0x0000000005F14000-memory.dmp
memory/916-126-0x0000000005460000-0x00000000054F2000-memory.dmp
memory/916-127-0x00000000055A0000-0x000000000563C000-memory.dmp
memory/916-128-0x000000000BA10000-0x000000000BA1A000-memory.dmp
memory/916-129-0x00000000085F0000-0x0000000008612000-memory.dmp
memory/4280-131-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4280-134-0x0000000006110000-0x0000000006176000-memory.dmp
memory/4280-135-0x00000000067F0000-0x0000000006840000-memory.dmp