MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking PDF links, suggesting a link farm or SEO poisoning tactic to drive traffic to malicious sites. The primary malicious URL is https://ttraff.ru/pify?keyword=present+perfect+tense+questions+exercises+pdf, which is likely used to deliver a secondary payload or phish for credentials.
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.ru/pify?keyword=present+perfect+tense+questions+exercises+pdf In PDF document text
- http://vewid.peterarmstrong225.net/uploads/1/3/1/4/131453494/xuxik-wilexibanasa-muxuzikuwigila.pdfIn PDF document text
- http://files.silvaweb.net/uploads/1/3/0/8/130814132/xitowimap.pdfIn PDF document text
- http://files.keepjudgecook.com/uploads/1/3/1/4/131438567/xoxepigarega-rabojometogake-rojisare-fivogapix.pdfIn PDF document text
- http://files.bcrenergygroup.org/uploads/1/3/2/6/132696558/979851.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/1/0433/0687/7080/files/90685913575.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5245/7369/files/how_do_you_rearrange_pages_in_a_file.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/2130374638.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4073/5381/files/jonugowezuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/3544/7711/files/all_of_me_chords_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8346/3832/files/zisumoziwenijonuzexakani.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6084/7004/files/derivation_of_lens_maker_formula_for_concave_lens.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8000/0422/files/bokadowabopadufofiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2725/0850/files/dikedafizim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5511/9520/files/61212972262.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/7525/0849/files/platelet_rich_plasma_preparation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0319/0180/files/aromaterapia_curso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3329/7058/files/62491929455.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6836/6760/files/blue_oyster_cult_agents_of_fortune.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_off00004da3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4DA3 | 5104 bytes |
SHA-256: cbb61e440a58abdc7cefd785830308d788e60d2d796c8bdc365f0908a2979fbd |
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font_01_sfnt_off00005f13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F13 | 9672 bytes |
SHA-256: 35b529d3e874e5bb69e798d304e1caa0a57816336dc982b3cbdec4104c2021ae |
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