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Analysis Report Complaint_Letter_1186814227-02192021.xls
Overview
General Information
Detection
Hidden Macro 4.0
Score: | 76 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malicious Excel 4.0 Macro
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Document exploit detected (UrlDownloadToFile)
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Sigma detected: Microsoft Office Product Spawning Windows Shell
Yara detected hidden Macro 4.0 in Excel
Document contains embedded VBA macros
JA3 SSL client fingerprint seen in connection with other malware
Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Uses a known web browser user agent for HTTP communication
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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SUSP_EnableContent_String_Gen | Detects suspicious string that asks to enable active content in Office Doc | Florian Roth |
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JoeSecurity_HiddenMacro | Yara detected hidden Macro 4.0 in Excel | Joe Security |
Sigma Overview |
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System Summary: |
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Sigma detected: Microsoft Office Product Spawning Windows Shell | Show sources |
Source: | Author: Michael Haag, Florian Roth, Markus Neis, Elastic, FPT.EagleEye Team: |
Signature Overview |
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Click to jump to signature section
Show All Signature Results
Compliance: |
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Uses new MSVCR Dlls | Show sources |
Source: | File opened: |
Uses secure TLS version for HTTPS connections | Show sources |
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: |
Software Vulnerabilities: |
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Document exploit detected (UrlDownloadToFile) | Show sources |
Source: | Section loaded: |
Document exploit detected (process start blacklist hit) | Show sources |
Source: | Process created: |
Source: | DNS query: |
Source: | TCP traffic: |
Source: | TCP traffic: |
Source: | JA3 fingerprint: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |
Source: | DNS traffic detected: |
Source: | HTTP traffic detected: |