Analysis
- max time kernel
142s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
16/06/2023, 11:20
General
- Target BANK TRANSFER COPY WIRE.exe
- Size 332KB
- Sample230616-nfezlsed6w
- SHA256 d0e55dd7e642a2550640ddfc5640cae323fcf94d4b0e1fbd67c2c5ff22db447d
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 2 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\BANK TRANSFER COPY WIRE.exe"C:\Users\Admin\AppData\Local\Temp\BANK TRANSFER COPY WIRE.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\BANK TRANSFER COPY WIRE.exe"C:\Users\Admin\AppData\Local\Temp\BANK TRANSFER COPY WIRE.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
lukgvly.dll
memory/1452-148-0x0000000004E80000-0x0000000004EE6000-memory.dmp
memory/1452-149-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1452-141-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1452-158-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1452-143-0x0000000004890000-0x0000000004E34000-memory.dmp
memory/1452-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1452-145-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1452-146-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1452-140-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1452-147-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1452-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1452-150-0x0000000005C60000-0x0000000005CF2000-memory.dmp
memory/1452-151-0x0000000005E60000-0x0000000005E6A000-memory.dmp
memory/1452-152-0x0000000005EB0000-0x0000000005F00000-memory.dmp
memory/1452-153-0x0000000005F80000-0x0000000006142000-memory.dmp
memory/1452-155-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1452-156-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1452-157-0x0000000004880000-0x0000000004890000-memory.dmp
memory/1484-139-0x0000000005790000-0x0000000005792000-memory.dmp