Malicious with 100% Confidence
SecondWrite’s DeepView Sandbox analyzed this file this week and declared it to be malicious.
DeepView unique and patented methods – specifically in this case, force code execution (FCE), program level indication (PLI), and automatic sequence detection (ASD) – identified 9 indicators. A link to the full report with descriptions and details is below.
Some key highlights and indicators follow. Those discovered by DeepView proprietary method are flagged with [FCE] for forced code execution, [PLI] for program level indication, and [ASD] automatic sequence detection.
Type of Malware: Worm
- [ASD] Automatic Sequence Detection maliciousness score: 86%
- [PLI] Contains obfuscated control-flow to defeat static analysis
- [PLI] More than %50 of the external calls do not go through the import address table
- [FCE] Expresses interest in specific running processes
- [FCE] Deletes its original binary from disk
- [FCE] Attempts to repeatedly call a single API many times in order to delay analysis time
- [FCE] A process attempted to delay the analysis task
- [FCE] Checks whether any human activity is being performed by constantly checking whether the foreground window changed
- Detects VMWare through the in instruction feature
- Checks adapter addresses which can be used to detect virtual network interfaces
Other Compelling Indicators:
- [FCE] Attempts to modify Explorer settings to prevent hidden files from being displayed
- Allocates read-write-execute memory (usually to unpack itself)
- Creates an Alternate Data Stream (ADS)
- Performs some HTTP requests
- Performs some DNS requests
MITRE ATT&CK Indicators:
|MITRE Tactic||MITRE Technique|
|Command and Control||Commonly Used PortCustom Command and Control Protocol|
|Defense Evasion||File DeletionHidden Files and DirectoriesNTFS File Attributes|
|Discovery||Process DiscoveryVirtualization / Sandbox Evasion|
|Persistence||Hidden Files and Directories|
Selection from The Report:
See Full Detailed Report:
Malware Of The Week is sourced by DeepView Sandbox using SecondWrite’s patented techniques of Forced Code Execution, Program Level Indicators, and Automatic Sequence Detection.