Analysis
- max time kernel
130s - max time network
115s - platform
windows10_x64 - resource
win10v20201028 - submitted
05/04/2021, 06:33
General
- Target Payment Notification.exe
- Size 830KB
- Sample210405-gqxppfcvf2
- SHA256 826298b4d035818be292a13b27215db4d94733f28df50f94e9a93a5d3fea2190
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yueqnugroup.com
-
Port
587
-
Username
-
Password
YOVxieJ1
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe"C:\Users\Admin\AppData\Local\Temp\Payment Notification.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/752-16-0x0000000000400000-0x000000000043C000-memory.dmp
memory/752-30-0x00000000055F1000-0x00000000055F2000-memory.dmp
memory/752-29-0x0000000001330000-0x0000000001331000-memory.dmp
memory/752-26-0x0000000005550000-0x0000000005551000-memory.dmp
memory/752-25-0x00000000055F0000-0x00000000055F1000-memory.dmp
memory/752-20-0x0000000073AC0000-0x00000000741AE000-memory.dmp
memory/3884-9-0x00000000057A0000-0x00000000057A1000-memory.dmp
memory/3884-14-0x00000000067C0000-0x00000000067CB000-memory.dmp
memory/3884-15-0x0000000006820000-0x0000000006821000-memory.dmp
memory/3884-13-0x00000000057A1000-0x00000000057A2000-memory.dmp
memory/3884-12-0x00000000068A0000-0x00000000068A1000-memory.dmp
memory/3884-11-0x00000000069A0000-0x00000000069A1000-memory.dmp
memory/3884-10-0x00000000068F0000-0x0000000006911000-memory.dmp
memory/3884-2-0x0000000073AC0000-0x00000000741AE000-memory.dmp
memory/3884-7-0x0000000005650000-0x0000000005651000-memory.dmp
memory/3884-6-0x00000000055B0000-0x00000000055B1000-memory.dmp
memory/3884-5-0x0000000005A10000-0x0000000005A11000-memory.dmp
memory/3884-3-0x0000000000BB0000-0x0000000000BB1000-memory.dmp