Analysis
- max time kernel
124s - max time network
133s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
07/09/2024, 14:07
General
- Target file.exe
- Size 1.7MB
- Sample240907-reyxwazcpf
- SHA256 2d117104fd19e8be357bd0d512fa041a19d484e095017d53d0c8c8af967919c3
Malware Config
Extracted
-
stealc
-
rave
-
http://185.215.113.103
-
url_path
/e2b1563c6670f193.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 14482⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3476 -ip 34761⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/3476-0-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-1-0x00000000778D4000-0x00000000778D6000-memory.dmp
memory/3476-2-0x0000000000DB1000-0x0000000000DC5000-memory.dmp
memory/3476-3-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-4-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-5-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-6-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-7-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-8-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-9-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-10-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-11-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-12-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-13-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-14-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-15-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-16-0x0000000000DB0000-0x0000000001436000-memory.dmp
memory/3476-18-0x0000000000DB0000-0x0000000001436000-memory.dmp