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 external PDF files, suggesting a link farm or SEO poisoning tactic. One prominent link, 'https://ttraff.ru/pify?keyword=accounting+theory+and+practice+pdf+download', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other Shopify URLs, reinforcing the lure of downloading a PDF. The primary attack pattern is social engineering via a malicious link embedded within the document.
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=accounting+theory+and+practice+pdf+download In PDF document text
- http://files.turner-mrs.com/uploads/1/3/2/6/132696598/3278026.pdfIn PDF document text
- http://files.maestromusiclessons.org/uploads/1/3/1/4/131438348/e0ee2d25dc.pdfIn PDF document text
- http://files.thewellnesstraininginstitute.com/uploads/1/3/0/7/130776609/173245.pdfIn PDF document text
- http://nutufuko.juliewiegand.com/uploads/1/3/0/7/130776208/9215823.pdfIn PDF document text
- http://durevamud.gbdinc.net/uploads/1/3/1/0/131070993/pugoj.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/6998/7223/files/binary_tree_interview_questions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0521/3852/files/raxoxunosexorepomakor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2046/7869/files/sufex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4069/4684/files/gungeon_gnawed_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9898/6909/files/39207248547.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorirazapevimixawas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6108/3301/files/flowers_for_algernon_full.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7799/0568/files/65516920659.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0292/1111/files/titezenulolewirotof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9997/1999/files/86610034311.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/2092/2528/files/advantages_and_disadvantages_of_mixed_economic_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4190/7100/files/89120928829.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0627/1394/files/bukebitirowiroderisilorot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/8078/1734/files/character_types_worksheet.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000053e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53E0 | 5304 bytes |
SHA-256: b8feea75afba46dc12e7b15fe84e415de0d54ce8a96a04abb50e9c484184c7dc |
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font_01_sfnt_off000065f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65F2 | 9936 bytes |
SHA-256: 494942f11a56a6ae70a3186a057e8d2c40ca024f355db0367b9bcc587a18de1c |
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font_02_sfnt_off000087ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87EF | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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