Analysis
- max time kernel
143s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
26/05/2023, 10:19
General
- Target shipmentReceipt( 22).pdf _customInvoice12074408.exe
- Size 716KB
- Sample230526-mchewsfa34
- SHA256 088dece027bdaff18c0f6ba9aecc17d2e55bc901ccfef1bbd02ca1f6eb367b1b
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot1360033246:AAF6H8m6YrL09doyxtsvJzZ_cIl__BCF4aU/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla payload 1 IoCs
- 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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\shipmentReceipt( 22).pdf _customInvoice12074408.exe"C:\Users\Admin\AppData\Local\Temp\shipmentReceipt( 22).pdf _customInvoice12074408.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\shipmentReceipt( 22).pdf _customInvoice12074408.exe"C:\Users\Admin\AppData\Local\Temp\shipmentReceipt( 22).pdf _customInvoice12074408.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- 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
shipmentReceipt( 22).pdf _customInvoice12074408.exe.log
memory/2152-140-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2152-147-0x0000000006270000-0x00000000062C0000-memory.dmp
memory/2152-145-0x0000000005430000-0x0000000005440000-memory.dmp
memory/2152-144-0x0000000006090000-0x00000000060F6000-memory.dmp
memory/2152-143-0x0000000005430000-0x0000000005440000-memory.dmp
memory/4180-136-0x0000000005470000-0x000000000547A000-memory.dmp
memory/4180-139-0x00000000096F0000-0x000000000978C000-memory.dmp
memory/4180-138-0x00000000054F0000-0x0000000005500000-memory.dmp
memory/4180-137-0x00000000054F0000-0x0000000005500000-memory.dmp
memory/4180-133-0x0000000000930000-0x00000000009EA000-memory.dmp
memory/4180-135-0x0000000005380000-0x0000000005412000-memory.dmp
memory/4180-134-0x0000000005830000-0x0000000005DD4000-memory.dmp