MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the title 'Alfredo bosi literatura brasileira pdf' and references wkhtmltopdf, suggesting a lure to download a PDF. The primary attack pattern involves redirecting users to malicious infrastructure via these embedded links.
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.com/pify?keyword=alfredo+bosi+literatura+brasileira+pdf In PDF document text
- http://turuteza.roundstoneponyshow.com/uploads/1/3/1/4/131453698/xodolivefupu-navawogubixeve-fuvizapofuginew-pizusi.pdfIn PDF document text
- http://files.surfergirl.us/uploads/1/3/1/4/131453431/fimutixojebipebepili.pdfIn PDF document text
- http://files.headphonemusiclabel.com/uploads/1/3/1/4/131437889/gidisuzivasajo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6890/6906/files/tuvoleribigozoduvowug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9885/6871/files/pabuvug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9997/1999/files/70931964852.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7417/4632/files/pisunubexovanigoni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2100/9053/files/32331414007.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7117/5846/files/9177261830.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2670/2758/files/50331608213.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8547/1656/files/worakotesagonidegixugok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1887/8117/files/25463543250.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7515/7670/files/ishikawa_cause_and_effect_diagram.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9394/0629/files/lafututaronetoxuzotazo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9461/4940/files/71884444230.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6055/1070/files/69598330662.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_off00004ecb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4ECB | 5164 bytes |
SHA-256: a1b5b5e4896dc3f287effd191eab0a7e2a3409aacf7fe8cc72d03d81a28eba9e |
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font_01_sfnt_off00006067.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6067 | 10064 bytes |
SHA-256: fc930536b854b00b9ef2905479545c3adf4e188451a9ccc7840bd73279e8c4bc |
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