Analysis
- max time kernel
142s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
27/07/2023, 01:48
General
- Target COAU8028849970-DN.exe
- Size 231KB
- Sample230727-b742lahf3w
- SHA256 142fdc315348f2ea29d8d3b7ff744c19fa7c6abef2c8f49f2206472d5c9b1ae8
Malware Config
Signatures
- 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.
- UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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: EnumeratesProcesses 2 IoCs
- 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\COAU8028849970-DN.exe"C:\Users\Admin\AppData\Local\Temp\COAU8028849970-DN.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\COAU8028849970-DN.exe"C:\Users\Admin\AppData\Local\Temp\COAU8028849970-DN.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
giqkqupjvc.dll
memory/1696-148-0x0000000004A00000-0x0000000004FA4000-memory.dmp
memory/1696-150-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1696-142-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1696-144-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1696-145-0x0000000074E20000-0x00000000755D0000-memory.dmp
memory/1696-146-0x0000000002600000-0x0000000002610000-memory.dmp
memory/1696-147-0x0000000002600000-0x0000000002610000-memory.dmp
memory/1696-158-0x0000000002600000-0x0000000002610000-memory.dmp
memory/1696-140-0x0000000000400000-0x0000000000456000-memory.dmp
memory/1696-151-0x0000000005D30000-0x0000000005D80000-memory.dmp
memory/1696-149-0x00000000050F0000-0x0000000005156000-memory.dmp
memory/1696-152-0x0000000005D80000-0x0000000005E12000-memory.dmp
memory/1696-153-0x0000000005F70000-0x0000000005F7A000-memory.dmp
memory/1696-154-0x0000000074E20000-0x00000000755D0000-memory.dmp
memory/1696-155-0x0000000002600000-0x0000000002610000-memory.dmp
memory/1696-157-0x0000000002600000-0x0000000002610000-memory.dmp
memory/4868-138-0x0000000003150000-0x0000000003152000-memory.dmp