Malicious PDF — malware analysis report

Static analysis result for SHA-256 72feb989b858fb96…

MALICIOUS

PDF

35.0 KB Authoring application: LibreOffice Draw
MD5: f7554249b6296c77f9cd0686af43ad95 SHA-1: 6a717b95a30ab57f308a6c566ceb04510ab44166 SHA-256: 72feb989b858fb966ac038165d97d8399aa9b429104e3cb60643e83d165675a0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm containing 31 external PDF links. The ML classifier also strongly indicated maliciousness. The embedded URLs suggest a phishing or SEO spam campaign, where the document serves as a lure to redirect users to other malicious PDF content. No scripts were extracted, but the sheer volume of linked PDFs points to a coordinated effort to distribute malicious content.

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://equitationcapital.com/uploads/1/3/0/6/130639516/0a148e.pdf
    • http://buysellvancouverhome.com/uploads/1/3/0/5/130589125/rawodepogikeb.pdf
    • http://picklejuiced.com/uploads/1/3/0/7/130776577/topizagi.pdf
    • http://courseaffiliate.com/uploads/1/3/0/2/130288722/fab580c0.pdf
    • http://toldoshorta.com/uploads/1/3/0/6/130621116/vipagafotonutunuku.pdf
    • http://briankhorsand.com/uploads/1/3/0/4/130483277/lebosigu.pdf
    • http://www.alphaestifanos.com/uploads/1/3/0/8/130873877/94e6624c5aef11.pdf
    • http://mypathwaytosuccess.org/uploads/1/3/0/5/130545043/vajoxe.pdf
    • http://carroattrezziusati.com/uploads/1/3/0/8/130873842/9868751.pdf
    • http://hostmaster.nigelmarkey.com/uploads/1/3/0/3/130379291/e1666.pdf
    • http://nwlaxshack.com/uploads/1/3/0/7/130775475/d6ed9f78e3c771.pdf
    • http://ronmo.com/uploads/1/3/0/5/130588679/tovunelelo.pdf
    • http://kylealpha.com/uploads/1/3/0/4/130476778/refikevo.pdf
    • http://rahimlovesnena.com/uploads/1/3/0/6/130639721/davowor.pdf
    • http://thehnossaproject.com/uploads/1/3/0/5/130589223/7688aaa933.pdf
    • http://adoptme.info/uploads/1/3/0/2/130289493/d43af194.pdf
    • http://swept-supplies.com/uploads/1/3/0/7/130739567/fizowupekimerowalapa.pdf
    • http://youdirtydawgpdx.com/uploads/1/3/0/2/130287533/2717a4.pdf
    • http://howtomakeabracelet.net/uploads/1/3/0/6/130620521/cfba7b05.pdf
    • http://ncmaf.com/uploads/1/3/0/7/130775495/538e71cd8b3e.pdf
    • http://driversedgrades.com/uploads/1/3/0/8/130813851/zositelupukor-bofareranavut-vobuv-zetusotede.pdf
    • http://nashvilleperformancepsych.net/uploads/1/3/0/2/130270792/6443025.pdf
    • http://elolv.slpny.com/uploads/1/3/0/9/130969352/130969352.html#natural+minor+scale+guitar+3+notes+per+string

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000027cb.bin
12c2416a9f98f9a90b292c7a553e7781f9cb2ab4b092c183a719885f4192666f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CB 7692 bytes

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