MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a lure related to accounting principles and free downloads, as indicated by the document body and the SE_INVOICE_LURE heuristic. It embeds multiple links, with one critical heuristic firing on a link to a known malicious redirector infrastructure (ttraff.cc). This redirector likely leads to further malicious content or exploits. The PDF also contains a link farm pointing to various Shopify-hosted PDFs, one of which is also listed as an IOC.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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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.cc/pify?keyword=accounting+principles+10th+edition+solutions+pdf+free+download In PDF document text
- http://files.avimursolutions.com/uploads/1/3/0/7/130775245/xosakov_duvoninadoviv_juvavu.pdfIn PDF document text
- http://files.newlookwindowcleaning.co.uk/uploads/1/3/1/1/131164479/kosulugotinivo.pdfIn PDF document text
- http://matolikup.emilyervinphotography.com/uploads/1/3/1/3/131384169/sujekuxom.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/1/0431/3248/5799/files/kojewetipojanoluzojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6299/2795/files/zexisujumabuweguka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1828/0357/files/orquidea_negra_neil_gaiman.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4994/3202/files/binarusevifero.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4061/1226/files/convert_to_word_application_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9809/5272/files/nenifevarivipage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1239/9010/files/66438325242.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0006/0310/files/30875179010.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3000/3358/files/zovawitibilij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0813/1233/files/13718686494.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54440827626.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1231/6584/files/tunevuwejutenoranexonuko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6775/3116/files/lozopidivadorizorega.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_off00008a3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A3A | 5576 bytes |
SHA-256: 48047d15087a078b2781b5ad21f76e4aae627bfb5254a4c5dcf2fd5644e42c61 |
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font_01_sfnt_off00009d39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D39 | 15372 bytes |
SHA-256: 5471da4971fded3c131c948f2075f2ed4a473cd396160d7caede7697322a81f2 |
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font_02_sfnt_off0000cd34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD34 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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