Analysis
- max time kernel
147s - max time network
12s - platform
windows7_x64 - resource
win7v200722 - submitted
05/10/2020, 14:29
General
- Target e3937ccb5d824eeed1726e1484751967.exe
- Size 471KB
- Sample201005-nwms92z89a
- SHA256 4a60edca3a6f3900a39b164d5894137e4e466bae90a5287ccd9eebb4482b2686
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
opjis0123
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e3937ccb5d824eeed1726e1484751967.exe"C:\Users\Admin\AppData\Local\Temp\e3937ccb5d824eeed1726e1484751967.exe"1⤵
- Loads dropped DLL
- 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/1000-1-0x0000000001070000-0x0000000001071000-memory.dmp
memory/1000-3-0x0000000000250000-0x0000000000275000-memory.dmp
memory/1000-5-0x00000000004B0000-0x00000000004B6000-memory.dmp
memory/1000-0-0x0000000074360000-0x0000000074A4E000-memory.dmp
memory/1592-7-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1592-10-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1592-11-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1592-13-0x0000000074360000-0x0000000074A4E000-memory.dmp