Malicious PDF — malware analysis report

Static analysis result for SHA-256 37c71014e797d224…

MALICIOUS

PDF

39.3 KB Authoring application: pdf-parser
MD5: ee2974d0cb2c36c3daa20a988044abd8 SHA-1: 9f5f22efb7f4900859807da44f661ac70b67371d SHA-256: 37c71014e797d22424b63501755f7cff56aa379e9a484ec0bcbbe3cc863a93c6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, and ML classifiers also flagged it as malicious. The document body content appears to be corrupted or truncated, preventing a more detailed analysis of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://honorabull.com/uploads/1/3/0/6/130620972/tavegutezutori_vevujuzovozoj_wokodujes.pdf
    • http://kxventures.com/uploads/1/3/0/4/130477146/8f40d8aadb31c6.pdf
    • http://polarcapcompany.com/uploads/1/3/0/5/130539111/539c522dc241c.pdf
    • http://bosshydrographics.com/uploads/1/3/0/5/130543764/poripufefur.pdf
    • http://colorists.directory/uploads/1/3/0/6/130621082/vowatekimipimidarige.pdf
    • http://aplusvictoryproducts.com/uploads/1/3/0/6/130604213/gojuvaza.pdf
    • http://lemonsandlimeskids.com/uploads/1/3/0/5/130588961/nozamefokigegujiwod.pdf
    • http://crispandsmooth.com/uploads/1/3/0/5/130538946/6588b0b3d.pdf
    • http://yestrespassing.com/uploads/1/3/0/2/130289540/4649913.pdf
    • http://kttravelswherehouse.com/uploads/1/3/0/5/130550982/c47dbf.pdf
    • http://hostmaster.wholehi.com/uploads/1/3/0/7/130738629/748e1eb.pdf
    • http://dadempire.com/uploads/1/3/0/5/130589216/paxuzanamurapo.pdf
    • http://bviscience.com/uploads/1/3/0/5/130551971/wixiku.pdf
    • http://thedatagourmet.net/uploads/1/3/0/8/130813461/100761.pdf
    • http://a1412531xstreamtravel.xsideas.com/uploads/1/3/0/5/130539097/130539097.html#carpal+and+cubital+tunnel+syndrome+symptoms
    • http://bosshydrographics.com/uploads/1/3/0/5/130543764/pori

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f45.bin
b34ff906f413461bf80855f83b38deea7ff8f411c9696c0b60d7f8140f4602ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F45 8228 bytes

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