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Analysis Report back.cmd
Overview
General Information
Detection
Xmrig
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Antivirus detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Yara detected Xmrig cryptocurrency miner
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an undocumented autostart registry key
Downloads files with wrong headers with respect to MIME Content-Type
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for dropped file
Sample is not signed and drops a device driver
Uses certutil -decode
Uses cmd line tools excessively to alter registry or file data
Uses schtasks.exe or at.exe to add and modify task schedules
AV process strings found (often used to terminate AV products)
Changes image file execution options
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains functionality to dynamically determine API calls
Contains functionality to query locales information (e.g. system language)
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Creates a process in suspended mode (likely to inject code)
Creates driver files
Creates files inside the system directory
Detected potential crypto function
Downloads executable code via HTTP
Drops PE files
Drops PE files to the windows directory (C:\Windows)
Drops files with a non-matching file extension (content does not match file extension)
Found dropped PE file which has not been started or loaded
Found evasive API chain (may stop execution after checking a module file name)
May sleep (evasive loops) to hinder dynamic analysis
Queries disk information (often used to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Tries to load missing DLLs
Uses a Windows Living Off The Land Binaries (LOL bins)
Uses code obfuscation techniques (call, push, ret)
Uses reg.exe to modify the Windows registry
Yara signature match
Classification
Startup |
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Malware Configuration |
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No configs have been found |
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Yara Overview |
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Initial Sample |
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Source | Rule | Description | Author | Strings |
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Certutil_Decode_OR_Download | Certutil Decode | Florian Roth |
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PCAP (Network Traffic) |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security |
Dropped Files |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security | ||
WiltedTulip_Tools_clrlg | Detects Windows eventlog cleaner used in Operation Wilted Tulip - file clrlg.bat | Florian Roth |
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JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security | ||
JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security | ||
SUSP_certificate_payload | Detects payloads that pretend to be certificates | Didier Stevens, Florian Roth |
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Click to see the 2 entries |
Memory Dumps |
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Source | Rule | Description | Author | Strings |
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JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security | ||
JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security | ||
JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security | ||
JoeSecurity_Xmrig | Yara detected Xmrig cryptocurrency miner | Joe Security | ||
Certutil_Decode_OR_Download | Certutil Decode | Florian Roth |
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Click to see the 4 entries |
Sigma Overview |
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No Sigma rule has matched |
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Signature Overview |
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Click to jump to signature section
Show All Signature Results
AV Detection: |
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Antivirus detection for URL or domain | Show sources |
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Antivirus detection for dropped file | Show sources |
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Multi AV Scanner detection for domain / URL | Show sources |
Source: | Virustotal: | Perma Link |
Multi AV Scanner detection for dropped file | Show sources |
Source: | ReversingLabs: |
Multi AV Scanner detection for submitted file | Show sources |
Source: | Virustotal: | Perma Link | ||
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Machine Learning detection for dropped file | Show sources |
Source: | Joe Sandbox ML: |
Bitcoin Miner: |
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Yara detected Xmrig cryptocurrency miner | Show sources |
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Networking: |
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Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) | Show sources |
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Downloads files with wrong headers with respect to MIME Content-Type | Show sources |
Source: | Image file has PE prefix: |