Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
24/06/2024, 21:36
General
- Target 99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe
- Size 4.0MB
- Sample240624-1gcxvsshmb
- SHA256 99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f
Malware Config
Extracted
-
stealc
-
default
-
http://85.28.47.4
-
url_path
/920475a59bac849d.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.
- Themida packer 13 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe"C:\Users\Admin\AppData\Local\Temp\99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4076 -s 13442⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4076 -ip 40761⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4076-1-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-2-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-0-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-4-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-5-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-7-0x0000000000111000-0x000000000012C000-memory.dmp
memory/4076-6-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-3-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-8-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-9-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-12-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-14-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-16-0x0000000000110000-0x0000000000735000-memory.dmp
memory/4076-18-0x0000000000110000-0x0000000000735000-memory.dmp