MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment
T1204.002 Malicious Link:Malicious File
The PDF document contains numerous external links, many of which point to PDF files hosted on domains that appear to be part of a link farm. The document body, though partially corrupted, contains a lure related to matrix inversion and references the wkhtmltopdf tool, suggesting it was generated programmatically. The ML classifier strongly indicated maliciousness, and the overall structure points to a campaign distributing content via SEO-optimized link farms, likely to host further malicious payloads or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://adsl-63-204-18-21.benefitplans.org/uploads/1/3/0/9/130969845/130969845.html#how+to+find+the+inverse+of+a+matrix+2x2
- http://marileeparrish.com/uploads/1/3/0/7/130776861/ad426bc4d.pdf
- http://nedasalmanpour.com/uploads/1/3/0/4/130476271/fc3dd0.pdf
- http://thebrocbd.com/uploads/1/3/0/4/130489499/kosozajiwonufus_jusus_filunita.pdf
- http://forgedinfire.ca/uploads/1/3/0/3/130324370/nodalorove.pdf
- http://boattrailershouston.com/uploads/1/3/0/5/130588388/12d040c86b1c.pdf
- http://chairssite.com/uploads/1/3/0/7/130776458/30b86fd1f63.pdf
- http://socialrealestateclub.com/uploads/1/3/0/2/130287285/2812933.pdf
- http://thekasasisters.com/uploads/1/3/0/5/130540063/8b876022.pdf
- http://luminouswater.us/uploads/1/3/0/6/130604419/3d72f4ee1cba13c.pdf
- http://medien-im-deutschunterricht.de/uploads/1/3/0/9/130969808/9052860.pdf
- http://marketingtipsnow.com/uploads/1/3/0/4/130492771/9bcce.pdf
- http://kammnevescottage.com/uploads/1/3/0/2/130288830/3c5ec23.pdf
- http://otairving.com/uploads/1/3/0/8/130814769/milol.pdf
- http://lisaderanekmd-for-medinacoroner.com/uploads/1/3/0/6/130639933/ketepabafomurajo.pdf
- http://impulse-healing.com/uploads/1/3/0/6/130604516/goxifutubujepuxitolo.pdf
- http://nataschawlotzka.com/uploads/1/3/0/5/130588687/futodewudimu-gegoxupimovura-joxemenokav-guropobulizexa.pdf
- http://bebrandconfident.live/uploads/1/3/0/2/130272575/28bf39d5.pdf
- http://vantagepointtravel.com/uploads/1/3/0/5/130588299/1083344.pdf
- http://wickedfreshsalad.com/uploads/1/3/0/4/130489247/2364589.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006f36.bin29789c4b433079aab89e9c2ce4f40b6e23e331de68d10675b12ffae1b4275779 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F36 | 8484 bytes |
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