Analysis
- max time kernel
157s - max time network
124s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
12/10/2021, 10:10
General
- Target Kredi Karti Hesap Özeti - 4508xxxxxxxx0017.bat.exe
- Size 620KB
- Sample211012-l7dvhscadn
- SHA256 58940bbe4bd11e01c2d344a8b50f98c087e979bc72a9f9682f7a0d3d6a2c8746
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.ozkahil.com
-
Port
587
-
Username
-
Password
transport2020**
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Kredi Karti Hesap Özeti - 4508xxxxxxxx0017.bat.exe"C:\Users\Admin\AppData\Local\Temp\Kredi Karti Hesap Özeti - 4508xxxxxxxx0017.bat.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pSXjISPTyx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB87E.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Kredi Karti Hesap Özeti - 4508xxxxxxxx0017.bat.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1676-115-0x0000000002CF0000-0x0000000002CF1000-memory.dmp
memory/1676-116-0x0000000002CF1000-0x0000000002CF2000-memory.dmp
memory/3516-119-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3516-122-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
memory/3516-123-0x0000000000EC1000-0x0000000000EC2000-memory.dmp