MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links designed to appear as academic resources, but they lead to a redirector service (ttraff.cc) and a large number of SEO-optimized PDF files hosted on WordPress.com. This indicates a link farm or phishing campaign aiming to drive traffic to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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 https://ttraff.cc/wb?keyword=mbbs%201st%20year%20books%20pdf%202018 In PDF document text
- http://files.smajali.co.uk/uploads/1/3/0/7/130776630/fijit.pdfIn PDF document text
- http://files.markpenzak.com/uploads/1/3/0/8/130813461/kuveletana.pdfIn PDF document text
- http://files.poulsborvspecials.com/uploads/1/3/0/7/130776041/lifovez.pdfIn PDF document text
- http://files.otterworksusa.com/uploads/1/3/1/4/131437351/tasegus-rekafi-zeganusisaj-jigavulef.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://repaxazaw.files.wordpress.com/2020/07/woxadapumudojomiropawibu.pdfIn PDF document text
- https://titunejerok37025062.files.wordpress.com/2020/07/woxelo.pdfIn PDF document text
- https://rojapasu.files.wordpress.com/2020/07/jobasofejanipuximewa.pdfIn PDF document text
- https://jukawuf.files.wordpress.com/2020/07/60841303957.pdfIn PDF document text
- https://jufidobe.files.wordpress.com/2020/06/xixeworigi.pdfIn PDF document text
- https://sosivudo.files.wordpress.com/2020/06/vidobukoxifujusisesuwetum.pdfIn PDF document text
- https://zimoligedozo.files.wordpress.com/2020/06/ronopijelixipotabumojepaj.pdfIn PDF document text
- https://wujeniva881121669.files.wordpress.com/2020/06/lotizipilawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9740/0223/files/22815635057.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5919/9650/files/77993219299.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3337/9487/files/54935668636.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3393/6547/files/72232117786.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9674/4871/files/wenujeki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9540/0356/files/68301727465.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7982/6582/files/84926625205.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/vopuzozapepuxalir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4513/5260/files/tufowigonakiwezapajale.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007b4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B4F | 5468 bytes |
SHA-256: d6ac648dd8ef4a1cc2851fe941a8011fe4b7b83f140bce2962e08773fbfce9d5 |
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font_01_sfnt_off00008e08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E08 | 9784 bytes |
SHA-256: 24407e7efb8cf07bf864fe22736957628925c5defc5746a0cc193c8f7a937046 |
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