Malicious PDF — malware analysis report

Static analysis result for SHA-256 78f05e1ef7574b03…

MALICIOUS

PDF

63.8 KB Authoring application: Serif PagePlus
MD5: 68d932772a4c51a8779a4f9baaa0d39e SHA-1: 5c9f526a3bdd11c8c4e6a64a908a40ad5fbae8ef SHA-256: 78f05e1ef7574b033088445db33134b235ad59fae524c49814be18bb374f7eb0
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains multiple embedded URLs pointing to other PDF files, suggesting a phishing or malware distribution attempt. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://nextbuildingforum.com/uploads/1/3/0/4/130478551/effff93.pdf
    • http://bdcglobalpng.com/uploads/1/3/0/6/130605162/36069e6660b16.pdf
    • http://alabamaassure.com/uploads/1/3/0/7/130738762/662910a3.pdf
    • http://mylittleteethers.com/uploads/1/3/0/5/130551677/8182542.pdf
    • http://allamericandogexpo.com/uploads/1/3/0/6/130620313/130620313.html#shelbourne+and+nitz+acl+protocol
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010b3.bin
9595c6294f17445165ff39a0539d2b78d3c961639f7db9521936666520e6ab06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3 8824 bytes
font_01_sfnt_off0000b4f6.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4F6 16036 bytes

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