Analysis
- max time kernel
134s - max time network
136s - platform
windows10_x64 - resource
win10-en - 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 4 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 SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 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
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/692-125-0x0000000000400000-0x000000000043C000-memory.dmp
memory/692-136-0x0000000005660000-0x0000000005B5E000-memory.dmp
memory/692-133-0x00000000063D0000-0x00000000063D1000-memory.dmp
memory/692-132-0x0000000005B40000-0x0000000005B41000-memory.dmp
memory/692-131-0x0000000005660000-0x0000000005B5E000-memory.dmp
memory/3980-119-0x0000000005220000-0x0000000005221000-memory.dmp
memory/3980-123-0x0000000007770000-0x00000000077D0000-memory.dmp
memory/3980-124-0x0000000009E30000-0x0000000009E68000-memory.dmp
memory/3980-122-0x0000000005210000-0x000000000570E000-memory.dmp
memory/3980-121-0x00000000053E0000-0x00000000053F6000-memory.dmp
memory/3980-120-0x0000000006D10000-0x0000000006D11000-memory.dmp
memory/3980-115-0x0000000000940000-0x0000000000941000-memory.dmp
memory/3980-118-0x00000000052B0000-0x00000000052B1000-memory.dmp
memory/3980-117-0x0000000005710000-0x0000000005711000-memory.dmp