Malicious with 82% Confidence
SecondWrite’s DeepView Sandbox analyzed this file last week and declared it to be malicious.
DeepView unique and patented methods – specifically in this case, force code execution identified 4 indicators. A link to the full report with descriptions and details is below.
Some key highlights and indicators follow. Those discovered by DeepView proprietary methods are flagged with [FCE] for forced code execution.
Type of Malware: Adware
- [FCE] Installs a browser add-on or extention
- Sniffs keystrokes
- Installs an hook procedure to monitor for mouse events
- This sample modifies many files through suspicious ways, likely a polymorphic virus or a ransomware
- A process created a hidden window
- Attempts to repeatedly call a single API many times in order to delay analysis time
- [FCE] Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available
- Deletes its original binary from disk
Other Compelling Indicators:
- [FCE] Attempts to stop active services
- [FCE] Sample writes a large amount of files (Over 100)
- Creates known Dexter registry keys and/or mutexes
- Network activity contains more than one unique useragent.
- Resolves .RU Russia TLD, Possibly Malicious
MITRE ATT&CK Indicators:
|MITRE Tactic||MITRE Technique|
|Defense Evasion||Software PackingVirtualization / Sandbox EvasionHidden WindowNTFS File AttributesFile DeletionConnection Proxy|
|Credential Access||Credential Dumping|
|Discovery||Virtualization / Sandbox Evasion|
|Lateral Movement||Remote FIle Copy|
|Command and Control||Remote File CopyConnection Proxy|
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.