Analysis
- max time kernel
137s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
25/12/2023, 18:13
General
- Target 33a2083427819549057ef5b4bb27d8ba.exe
- Size 512KB
- Sample231225-wt52ysahck
- SHA256 101a586bc0374469755bccb6297e270a63de3e47106bc037167dcb4d1cd8611f
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Drops desktop.ini file(s) 2 IoCs
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Enumerates system info in registry 2 TTPs 2 IoCs
- Modifies system certificate store 2 TTPs 3 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\33a2083427819549057ef5b4bb27d8ba.exe"C:\Users\Admin\AppData\Local\Temp\33a2083427819549057ef5b4bb27d8ba.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\n3530\s3530.exe"C:\Users\Admin\AppData\Local\Temp\n3530\s3530.exe" 55800887e41131118532bd48+B3mC6F65i2R7fGcfGTYwOrpMafhDd8MFUfNWxuXSrajo3yDGY0FCCBSWgTLn0vh/r6xhQcZmHmsw0lBhg5Z/luBh3WYu+mdF7XAuz+62ZR7bslhBTRp3eENw9uV2c7aCIpSUFs79jncak6fBeRPNmhv /v "C:\Users\Admin\AppData\Local\Temp\33a2083427819549057ef5b4bb27d8ba.exe"2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
s3530.exe
memory/4232-13-0x0000000000FE0000-0x0000000000FF0000-memory.dmp
memory/4232-12-0x00007FFDDFB30000-0x00007FFDE04D1000-memory.dmp
memory/4232-27-0x0000000001010000-0x0000000001022000-memory.dmp
memory/4232-31-0x000000001C9E0000-0x000000001CA7C000-memory.dmp
memory/4232-30-0x000000001C510000-0x000000001C9DE000-memory.dmp
memory/4232-32-0x000000001CB90000-0x000000001CBF2000-memory.dmp
memory/4232-33-0x0000000000FE0000-0x0000000000FF0000-memory.dmp
memory/4232-34-0x000000001BE40000-0x000000001BE48000-memory.dmp
memory/4232-35-0x0000000000FE0000-0x0000000000FF0000-memory.dmp
memory/4232-36-0x0000000000FE0000-0x0000000000FF0000-memory.dmp
memory/4232-38-0x0000000000FE0000-0x0000000000FF0000-memory.dmp
memory/4232-37-0x0000000000FE0000-0x0000000000FF0000-memory.dmp
memory/4232-39-0x0000000020740000-0x0000000020C4E000-memory.dmp
memory/4232-40-0x0000000020E90000-0x0000000020FCC000-memory.dmp
memory/4232-41-0x00007FFDDFB30000-0x00007FFDE04D1000-memory.dmp
memory/4232-42-0x0000000000FE0000-0x0000000000FF0000-memory.dmp
memory/4232-43-0x00007FFDDFB30000-0x00007FFDE04D1000-memory.dmp
memory/4232-45-0x00007FFDDFB30000-0x00007FFDE04D1000-memory.dmp