MALICIOUS
210
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.ru) and a large number of links to PDFs hosted on cdn.shopify.com, suggesting a link farm for SEO manipulation or to obscure malicious destinations. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=botany+textbook+pdf+class+11, which is flagged as a malicious redirector. This indicates a likely attempt to redirect users to malicious sites under the guise of providing a PDF document.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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=botany+textbook+pdf+class+11 In PDF document text
- http://lidav.ragsandrust.co.uk/uploads/1/3/1/4/131408100/dc22708a5236da9.pdfIn PDF document text
- http://files.fantasticalfaces.com/uploads/1/3/0/7/130740391/bumunemiri-tifasakikedidi-nisiribisa-domikibuz.pdfIn PDF document text
- http://files.thecookteaser.com/uploads/1/3/1/6/131607662/zutataweranul.pdfIn PDF document text
- http://files.kenowahillsdctrip.com/uploads/1/3/0/9/130969206/1537877.pdfIn PDF document text
- http://mufuges.swiptt.com/uploads/1/3/2/8/132814930/7610777.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/1/0444/3848/7206/files/present_perfect_past_simple_exercise.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7475/4462/files/12863873251.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8350/5562/files/jquery_remove_all_classes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4669/9165/files/scert_assam_d._el._ed_result_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9802/1793/files/metabolismo_purinas_y_pirimidinas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3418/0769/files/28270985322.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0223/2983/files/69437430183.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9408/9635/files/zofos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5117/9423/files/beowulf_new_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6960/2981/files/vojixarowenekigeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/5744/0926/files/sociology_books_for_upsc.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0902/2886/files/63515356862.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_off00007bb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BB7 | 5528 bytes |
SHA-256: 726a8e086941d013020a0d6b8ac56f6c936af8219da8b1771d17f89fdadc5ae9 |
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font_01_sfnt_off00008eae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EAE | 10120 bytes |
SHA-256: 9adc403df8066ff58a5475dc434f2e1db1dfaf128f03714e08a4e0fa4a564e45 |
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