Analysis
- max time kernel
122s - max time network
149s - platform
windows10_x64 - resource
win10v20201028 - submitted
07/02/2021, 16:05
General
- Target Proforma Invoice.exe
- Size 1.1MB
- Sample210207-n9f4wth3te
- SHA256 d44ab027fea1af8575d4e42667e1021bf1cfbf2e7a56b7cd7e26a605d5720b16
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.idroconsulting.biz
-
Port
587
-
Username
-
Password
SSuavsk8
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PDF.exe"C:\Users\Admin\AppData\Local\Temp\PDF.exe"2⤵
- 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"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1276-28-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1276-42-0x0000000005801000-0x0000000005802000-memory.dmp
memory/1276-41-0x0000000001880000-0x0000000001881000-memory.dmp
memory/1276-39-0x0000000006400000-0x0000000006401000-memory.dmp
memory/1276-38-0x00000000057D0000-0x00000000057D1000-memory.dmp
memory/1276-37-0x0000000005800000-0x0000000005801000-memory.dmp
memory/1276-32-0x0000000073310000-0x00000000739FE000-memory.dmp
memory/2192-25-0x0000000004FD1000-0x0000000004FD2000-memory.dmp
memory/2192-23-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
memory/2192-26-0x00000000064A0000-0x00000000064AB000-memory.dmp
memory/2192-27-0x00000000064E0000-0x00000000064E1000-memory.dmp
memory/2192-14-0x0000000073300000-0x00000000739EE000-memory.dmp
memory/3300-12-0x0000000009CD0000-0x0000000009CD1000-memory.dmp
memory/3300-2-0x0000000073300000-0x00000000739EE000-memory.dmp
memory/3300-11-0x0000000006970000-0x0000000006971000-memory.dmp
memory/3300-10-0x0000000005750000-0x000000000576E000-memory.dmp
memory/3300-8-0x00000000056F0000-0x00000000056F1000-memory.dmp
memory/3300-7-0x0000000005840000-0x0000000005841000-memory.dmp
memory/3300-6-0x0000000005770000-0x0000000005771000-memory.dmp
memory/3300-5-0x0000000005D40000-0x0000000005D41000-memory.dmp
memory/3300-3-0x0000000000DE0000-0x0000000000DE1000-memory.dmp