Analysis
- max time kernel
116s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
26/08/2024, 01:01
General
- Target 14573d72508f6702068bdbe98f350829250f67ec262c663170ad26178f4ccf17.vbs
- Size 679KB
- Sample240826-bdff5sxejq
- SHA256 14573d72508f6702068bdbe98f350829250f67ec262c663170ad26178f4ccf17
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\14573d72508f6702068bdbe98f350829250f67ec262c663170ad26178f4ccf17.vbs"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\x.exe"C:\Users\Admin\AppData\Local\Temp\x.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\x.exe"C:\Users\Admin\AppData\Local\Temp\x.exe"3⤵
- Loads dropped DLL
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
x.exe
memory/652-32-0x00000000031A0000-0x000000000427F000-memory.dmp
memory/652-21-0x00000000031A0000-0x000000000427F000-memory.dmp
memory/652-22-0x0000000077DA1000-0x0000000077EC1000-memory.dmp
memory/652-23-0x0000000075245000-0x0000000075246000-memory.dmp
memory/652-25-0x00000000031A0000-0x000000000427F000-memory.dmp
memory/3312-26-0x00000000016C0000-0x000000000279F000-memory.dmp
memory/3312-30-0x0000000000460000-0x00000000016B4000-memory.dmp
memory/3312-34-0x00000000016C0000-0x000000000279F000-memory.dmp
memory/3312-33-0x0000000000460000-0x00000000016B4000-memory.dmp
memory/3312-35-0x0000000000460000-0x00000000016B4000-memory.dmp
memory/3312-39-0x0000000000460000-0x00000000016B4000-memory.dmp