Analysis
- max time kernel
143s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230831-en - resource tags
- submitted
05/09/2023, 06:07
General
- Target a31cdab9f9a5355fce8b0c144825b5a9.exe
- Size 457KB
- Sample230905-gva6msde9x
- SHA256 ecc7eaf66af67a95b00a9ed1030b779043987b135e2e09f506b8e668cb33c816
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.durantco.com
-
Port
587
-
Username
-
Password
Durantco@200
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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 SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a31cdab9f9a5355fce8b0c144825b5a9.exe"C:\Users\Admin\AppData\Local\Temp\a31cdab9f9a5355fce8b0c144825b5a9.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\yfwjioqghw.exe"C:\Users\Admin\AppData\Local\Temp\yfwjioqghw.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\yfwjioqghw.exe"C:\Users\Admin\AppData\Local\Temp\yfwjioqghw.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
jppnqay.jn
yfwjioqghw.exe
yfwjioqghw.exe
yfwjioqghw.exe
memory/540-5-0x00000000014B0000-0x00000000014B2000-memory.dmp
memory/3628-14-0x00000000051B0000-0x00000000051C0000-memory.dmp
memory/3628-18-0x00000000053B0000-0x0000000005416000-memory.dmp
memory/3628-10-0x0000000000400000-0x0000000000455000-memory.dmp
memory/3628-11-0x0000000000400000-0x0000000000455000-memory.dmp
memory/3628-13-0x0000000073ED0000-0x0000000074680000-memory.dmp
memory/3628-7-0x0000000000400000-0x0000000000455000-memory.dmp
memory/3628-15-0x00000000051B0000-0x00000000051C0000-memory.dmp
memory/3628-16-0x00000000057C0000-0x0000000005D64000-memory.dmp
memory/3628-17-0x00000000051B0000-0x00000000051C0000-memory.dmp
memory/3628-9-0x0000000000400000-0x0000000000455000-memory.dmp
memory/3628-19-0x0000000006810000-0x0000000006860000-memory.dmp
memory/3628-20-0x0000000006900000-0x000000000699C000-memory.dmp
memory/3628-21-0x0000000073ED0000-0x0000000074680000-memory.dmp
memory/3628-22-0x0000000006A40000-0x0000000006AD2000-memory.dmp
memory/3628-23-0x00000000051B0000-0x00000000051C0000-memory.dmp
memory/3628-24-0x00000000069D0000-0x00000000069DA000-memory.dmp
memory/3628-25-0x00000000051B0000-0x00000000051C0000-memory.dmp