Analysis
- max time kernel
91s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
22/05/2022, 12:11
General
- Target Halkbank_Ekstre_20220521_075518_627301.pdf.exe
- Size 791KB
- Sample220522-pclhnaaab2
- SHA256 099c32fb57ea9e110b7172e62d16c703aed391200456a5a0d43dc7de1deadc95
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5305653894:AAEWkckll0ypORkvNg_I5V155x2q1mfMddw/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220521_075518_627301.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220521_075518_627301.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220521_075518_627301.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220521_075518_627301.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Halkbank_Ekstre_20220521_075518_627301.pdf.exe.log
memory/1792-130-0x0000000000610000-0x00000000006DA000-memory.dmp
memory/1792-131-0x0000000007980000-0x0000000007F24000-memory.dmp
memory/1792-132-0x0000000007470000-0x0000000007502000-memory.dmp
memory/1792-133-0x00000000073F0000-0x00000000073FA000-memory.dmp
memory/1792-134-0x00000000076C0000-0x000000000775C000-memory.dmp
memory/1792-135-0x0000000009EF0000-0x0000000009F56000-memory.dmp
memory/4940-137-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4940-139-0x0000000006320000-0x0000000006370000-memory.dmp