MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users into clicking through to potentially harmful content. The document also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on cdn.shopify.com. The presence of a 'download button' heuristic further supports the attack pattern of social engineering users into clicking malicious links.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=apposer+signature+document+pdf In PDF document text
- http://files.curtisglassart.com/uploads/1/3/1/1/131164446/6b4c2b0e1.pdfIn PDF document text
- http://files.cyrcertification.com/uploads/1/3/1/4/131413678/konakajubobuto_senaguz_fowuledome_tetunupa.pdfIn PDF document text
- http://files.captainhorne.com/uploads/1/3/1/3/131383743/6a5183.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/1/0430/2385/9873/files/solubility_curves_worksheet_form_ws8._1._2a.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8855/9780/files/gesaropubilepusitefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2434/1400/files/21963685601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3315/6001/files/easy_algebra_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5476/8021/files/zagafuwekeditasan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0049/4237/files/siteditajidazowumok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/lemonebomebaro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/4210/6518/files/pabupexibov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1731/3176/files/52751626553.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9362/2935/files/dobikanosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3526/3138/files/62897585345.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8640/4000/files/paradise_lost_annotated.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/4153/4631/files/broken_open_elizabeth_lesser.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_off000054cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54CD | 5432 bytes |
SHA-256: 213fff53601b882c6337edb7b07e88252e13c60fe713cb2bf555062127875040 |
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font_01_sfnt_off0000672f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x672F | 9552 bytes |
SHA-256: b2cd1352598c787d21820826b8bcd46f3e48ee0ece20d5c31589434a52198036 |
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