General
- Target b39b71fc8fcdcc3affe2f145ca71fc423349b4146c1998279aa876076073705d
- Size 7.2MB
- Sample260908-cas4hace63
- SHA256 b39b71fc8fcdcc3affe2f145ca71fc423349b4146c1998279aa876076073705d
Score
10/10
Malware Config
Targets
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- Target b39b71fc8fcdcc3affe2f145ca71fc423349b4146c1998279aa876076073705d
- Size 7.2MB
- SHA256 b39b71fc8fcdcc3affe2f145ca71fc423349b4146c1998279aa876076073705d
Score10/10-
Detects ValleyRAT payload
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Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
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Badlisted process makes network request
Network request originating from process or tool commonly abused by malware.
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Discovers running processes
Running process information can be used to identify security tools or plan follow-on actions.
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Drops file in System32 directory
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Executes a VBScript file via the Windows Script Host.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
1Subvert Trust Controls
2Install Root Certificate
2