MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded external links, flagged by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains text related to 'Mechanics of materials 2nd edition' and the wkhtmltopdf application, suggesting a lure document. The primary attack pattern involves directing users to a multitude of external URLs, likely for SEO spam or to host further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://host171.carmichaelnl.com/uploads/1/3/0/6/130604420/130604420.html#mechanics+of+materials+2nd+edition
- http://doggiedeluxe.com/uploads/1/3/1/6/131607635/danoled_vawinafuj_luzeleja.pdf
- http://lillichart.com/uploads/1/3/1/6/131606597/4379912.pdf
- http://mybiginterview.com/uploads/1/3/1/4/131408086/wumipawaku_lurifex.pdf
- http://veganagogoorganics.com/uploads/1/3/1/4/131483371/wuzosabixanuxabu.pdf
- http://zachbebel.com/uploads/1/3/0/5/130551597/6959102.pdf
- http://harrisonyearbooks.com/uploads/1/3/1/3/131380305/lixilupusun-fafelexejis-zusadatibak-latul.pdf
- http://mail.bigcreekkennels.com/uploads/1/3/0/5/130588248/patoluzokodewukexu.pdf
- http://joconnorbandproject.com/uploads/1/3/0/7/130775049/8373583.pdf
- http://alluneedonline.net/uploads/1/3/0/5/130550827/45c6fc78a1e946.pdf
- http://crochetbling.com/uploads/1/3/0/4/130477468/2898548.pdf
- http://thebritishhotel.net/uploads/1/3/0/2/130271158/890cd.pdf
- http://hearyeinvitations.com/uploads/1/3/0/8/130815277/zixezifupepofagak.pdf
- http://joelleallencounselling.com/uploads/1/3/0/7/130739404/dajomanegitakas-mafakul-vexedewa-zowidipevox.pdf
- http://michaelmccormackarts.com/uploads/1/3/0/4/130488884/2943525.pdf
- http://sienahoefling.com/uploads/1/3/0/5/130588833/pupedujudofumo-mafejirufedow-gekijarot.pdf
- http://watatkd.com/uploads/1/3/0/5/130588685/farutosidi-voxugexubugavu.pdf
- http://redefinetherapy.org/uploads/1/3/0/5/130539114/6122300.pdf
- http://jdsalazarproductions.com/uploads/1/3/1/6/131637830/21201d921.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000744a.bin85773914939d32ec3cea1263a34be520b990a98511063ca0ac6d6e45b2fdf7ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x744A | 10424 bytes |
font_01_sfnt_off000097b9.bin7a1c3a1409cadba5655e718208952661d75bb35cb30a5ac3e370bea4f6b7683e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97B9 | 17436 bytes |
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