Analysis
- max time kernel
142s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
22/03/2023, 04:41
General
- Target 3a02d50415b4f76d02cda80340ecccbe.exe
- Size 266KB
- Sample230322-fa4rsagh21
- SHA256 44daf0f79a8c0f762378b5418a90d3b15925d4be8f35be293bc2ef657aee7078
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 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
- Adds Run key to start application 2 TTPs 1 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.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3a02d50415b4f76d02cda80340ecccbe.exe"C:\Users\Admin\AppData\Local\Temp\3a02d50415b4f76d02cda80340ecccbe.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hjnmul.exe"C:\Users\Admin\AppData\Local\Temp\hjnmul.exe" C:\Users\Admin\AppData\Local\Temp\aeivwyul.y2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hjnmul.exe"C:\Users\Admin\AppData\Local\Temp\hjnmul.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
aeivwyul.y
hjnmul.exe
hjnmul.exe
hjnmul.exe
peqsj.on
memory/4420-148-0x0000000004E60000-0x0000000004EC6000-memory.dmp
memory/4420-152-0x0000000002300000-0x0000000002310000-memory.dmp
memory/4420-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4420-146-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4420-147-0x0000000004850000-0x0000000004DF4000-memory.dmp
memory/4420-141-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4420-149-0x0000000002300000-0x0000000002310000-memory.dmp
memory/4420-150-0x0000000002300000-0x0000000002310000-memory.dmp
memory/4420-151-0x0000000002300000-0x0000000002310000-memory.dmp
memory/4420-143-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4420-153-0x0000000005730000-0x00000000057C2000-memory.dmp
memory/4420-154-0x0000000005870000-0x000000000587A000-memory.dmp
memory/4420-155-0x00000000059D0000-0x0000000005A20000-memory.dmp
memory/4420-156-0x0000000005A20000-0x0000000005BE2000-memory.dmp
memory/4420-158-0x0000000002300000-0x0000000002310000-memory.dmp
memory/4420-159-0x0000000002300000-0x0000000002310000-memory.dmp
memory/4420-160-0x0000000002300000-0x0000000002310000-memory.dmp
memory/4420-161-0x0000000002300000-0x0000000002310000-memory.dmp