Analysis
- max time kernel
143s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
17/05/2023, 12:45
General
- Target 9cf450fc0f69cccd0aa1e7059ff464c6.exe
- Size 267KB
- Sample230517-py3dasfa63
- SHA256 bebd0c5009a5b0b0a06fbe0020bd6f083ed90509771dbf1f8010e19e527bf464
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Loads dropped DLL 1 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\9cf450fc0f69cccd0aa1e7059ff464c6.exe"C:\Users\Admin\AppData\Local\Temp\9cf450fc0f69cccd0aa1e7059ff464c6.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\9cf450fc0f69cccd0aa1e7059ff464c6.exe"C:\Users\Admin\AppData\Local\Temp\9cf450fc0f69cccd0aa1e7059ff464c6.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
eiyhkfb.dll
memory/1560-141-0x00000000023F0000-0x00000000023F3000-memory.dmp
memory/4500-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4500-143-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4500-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4500-145-0x00000000049E0000-0x0000000004F84000-memory.dmp
memory/4500-146-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4500-147-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-148-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-149-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-150-0x0000000004FD0000-0x0000000005036000-memory.dmp
memory/4500-151-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-153-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-154-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-155-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-156-0x0000000002390000-0x00000000023A0000-memory.dmp
memory/4500-157-0x0000000005E30000-0x0000000005EC2000-memory.dmp
memory/4500-158-0x0000000005F20000-0x0000000005F2A000-memory.dmp
memory/4500-159-0x0000000005F90000-0x0000000005FE0000-memory.dmp
memory/4500-160-0x00000000061A0000-0x0000000006362000-memory.dmp