Malicious PDF — malware analysis report

Static analysis result for SHA-256 64406028cdb33297…

MALICIOUS

PDF

65.2 KB Authoring application: QPDF
MD5: a9dd00191ada8a83291f1157642f31d4 SHA-1: bf033d68ccb4a5130b8299fa201eff140dc3aae1 SHA-256: 64406028cdb3329762e62c91a6f4e2f4dc35c1508bd53fd58385d70648642c8c
152 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, and exhibits a critical heuristic for a PDF link farm. The document body contains numerous URLs pointing to other PDF files, suggesting a tactic to distribute malicious content or manipulate search engine results. While no scripts were explicitly extracted, the nature of the link farm and the embedded URLs indicate a likely intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://morocconow1.com/uploads/1/3/0/7/130739598/xisapukabub-sotisivobininen-vetusuvufowek-pajisu.pdf
    • http://rtpliving.com/uploads/1/3/0/6/130603906/mipexarivone.pdf
    • http://aventusinflatables.com/uploads/1/3/0/5/130551362/7828431.pdf
    • http://boldncreative.com/uploads/1/3/0/7/130739131/fasuxovujejim.pdf
    • http://audreylooksat.com/uploads/1/3/0/6/130604369/1575017.pdf
    • http://danielrudin.com/uploads/1/3/0/5/130590555/421fda4d17.pdf
    • http://ballerweekly.com/uploads/1/3/0/3/130379113/xofevabo.pdf
    • http://lightcodesmusic.com/uploads/1/3/0/2/130271145/1491217.pdf
    • http://dragonflyfloralrentals.com/uploads/1/3/0/7/130739558/de8b7a55852.pdf
    • http://ccevenice.com/uploads/1/3/0/6/130621060/4389262.pdf
    • http://theelfbox.com/uploads/1/3/0/2/130271243/130271243.html#abercrombie+and+fitch+logo+animal+name

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001355.bin
2b317eb83b0c15ed84eefe972e9efcaf52036f2d61622cade55c09be784b5b47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1355 9844 bytes

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