MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious due to the presence of numerous external links, a technique often used for SEO poisoning or to direct users to malicious sites. One critical heuristic firing confirmed a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=irelia+guide+9.+22'. The document body, though heavily obfuscated, contains this URL and other Shopify-hosted PDF links, suggesting a link farm or redirection strategy. No scripts were extracted, but the primary attack pattern involves leveraging these 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.ru/pify?keyword=irelia+guide+9.+22 In PDF document text
- http://files.umdwrfc.com/uploads/1/3/0/8/130813837/tedubabanib-zotalebit.pdfIn PDF document text
- http://files.mbbizwell.com/uploads/1/3/0/7/130739265/9ec2d091c934.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/1/0439/6512/0670/files/difference_entre_cellule_eucaryote_et_cellule_procaryote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2823/3887/files/60825593403.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5198/3772/files/denubol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7283/8039/files/oxford_textbook_of_attention_deficit_hyperactivity_disorder.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5205/6227/files/ladikulakag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9596/4328/files/bixopivuroxol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0594/9590/files/anestesia_local_en_nios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5778/9593/files/40137319638.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0002/0635/files/dixifoxisolefejipafe.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006108.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6108 | 4660 bytes |
SHA-256: 8dfbfbdf4d5d28462fec90c8c8b18181bc05da673a5f456ef07c666c6856d187 |
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font_01_sfnt_off000070db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70DB | 11412 bytes |
SHA-256: 15965419359c9c867199866cadc18dfe3c308eb8e9c23a42d13c73d9309dc9e2 |
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font_02_sfnt_off00009749.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9749 | 16580 bytes |
SHA-256: 410a849971d51ab43080311c66a00bcd06a59b9f076061731c2e369be5020f39 |
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font_03_sfnt_off0000ada7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADA7 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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font_04_sfnt_off0000bb6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB6A | 6064 bytes |
SHA-256: 608da7165703b902d85db407fb596c9c9243b781f128346af0253b6c483847d8 |
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