Analysis
- max time kernel
153s - max time network
20s - platform
windows7_x64 - resource
win7v20210408 - submitted
03/09/2021, 04:23
General
- Target BCuGuKnqA4EyRGe.exe
- Size 648KB
- Sample210903-eztsfacae6
- SHA256 56e64a112104a4bceeec030a7a5a2b6ef64dee29f9acfd28ab55cb00f906fd26
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.karanex.com
-
Port
587
-
Username
-
Password
zarazita404
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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 2 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\BCuGuKnqA4EyRGe.exe"C:\Users\Admin\AppData\Local\Temp\BCuGuKnqA4EyRGe.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\BCuGuKnqA4EyRGe.exe"C:\Users\Admin\AppData\Local\Temp\BCuGuKnqA4EyRGe.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1088-60-0x0000000000040000-0x0000000000041000-memory.dmp
memory/1088-62-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
memory/1088-63-0x0000000000530000-0x0000000000546000-memory.dmp
memory/1088-64-0x0000000005020000-0x0000000005080000-memory.dmp
memory/1088-65-0x0000000001F80000-0x0000000001FB8000-memory.dmp
memory/1572-66-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1572-68-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1572-70-0x0000000000BA0000-0x0000000000BA1000-memory.dmp