MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. One of the primary links, https://ttraff.com/pify?keyword=biology+general+knowledge+questions+and+answers+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and appears to be a lure for "Biology general knowledge questions and answers pdf". The presence of numerous external links suggests a technique to distribute malicious content or to manipulate search engine results.
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=biology+general+knowledge+questions+and+answers+pdf In PDF document text
- http://files.australianworkersparty.org/uploads/1/3/0/9/130969923/6164931.pdfIn PDF document text
- http://files.buyandsellwithcascade.com/uploads/1/3/1/3/131383228/fisulikagewe.pdfIn PDF document text
- http://files.vibrantroad.com/uploads/1/3/1/3/131379312/jijuru-susuzasafera-nikatigusivozad-xojoz.pdfIn PDF document text
- http://dafolo.andrewburrell.org/uploads/1/3/1/0/131070356/vabewumow-lotijufetotem-jukizaxep.pdfIn PDF document text
- http://files.gretamarchesi.com/uploads/1/3/1/4/131409693/wixurufon.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5525/9546/files/fixaxozobajazililome.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7799/9519/files/dekivutote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0445/2246/files/45170125018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8548/8543/files/77462270885.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0058/6649/files/86921720264.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/3745/3470/files/computational_complexity_a_conceptual_perspective.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7122/5494/files/gimodasi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2790/6206/files/dusajajudasi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3625/2072/files/xekofudugotene.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4760/0796/files/40211281108.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1008/8357/files/lijuseforinivu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7355/1001/files/i_spit_on_your_grave_torrent.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9853/0201/files/uninstall_brew_package.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_off00006f8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F8E | 5644 bytes |
SHA-256: fa9390edc0952ca30858c5f1ced702c8bc544a69a8b242b220f232b5506c52cf |
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font_01_sfnt_off000082ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82ED | 10476 bytes |
SHA-256: aedb4108381e9b6b025b333a0523d5aab5fc4595c097f2f84edada92800f1e30 |
|||
font_02_sfnt_off0000a682.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA682 | 5728 bytes |
SHA-256: aac12dfaa7a4717741474a65b6c01b8995e0b1431045641cdbaccc82c068a749 |
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