MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.ru. This URL is presented to the user as a "Crossfit workout book pdf", indicating a social engineering lure. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting an attempt to disguise the malicious link within a larger set of seemingly benign content. The ML classifier also strongly flagged this PDF as malicious.
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/wb?keyword=crossfit%20workout%20book%20pdf In PDF document text
- http://files.icprights.com/uploads/1/3/1/3/131383826/6118828.pdfIn PDF document text
- http://files.alkistis.net/uploads/1/3/1/0/131070529/426abcf78a5.pdfIn PDF document text
- http://files.sunweeklynews.com/uploads/1/3/1/3/131381658/8652791.pdfIn PDF document text
- http://files.durhamcontractorstx.com/uploads/1/3/1/4/131456012/xitiluwabiziwu-jukemosiso-wanusowedu.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/1/0433/0687/7080/files/53940391871.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9496/6429/files/18422425827.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0670/5311/files/kuvewutiradudugajuku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9032/2335/files/70258871448.pdfIn PDF document text
- https://buzugopi.files.wordpress.com/2020/06/benumatedofabedoledixudop.pdfIn PDF document text
- https://mabavazadir16077034.files.wordpress.com/2020/07/mezakinebutajodisibup.pdfIn PDF document text
- https://lasojunobewe287962433.files.wordpress.com/2020/07/jegadawepanavewedijomun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8996/9820/files/govevesozafopisofa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2119/5669/files/21488902897.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3271/4139/files/54976933406.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1042/4993/files/97627563521.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9821/0461/files/82181073837.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34597476450.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16946396068.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7580/6119/files/46049109408.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4174/3263/files/58203007516.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_off00008e73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E73 | 4768 bytes |
SHA-256: 8222d1e264be28fd343809e786bd95d0c2dad19285e5395b071877182c7911ea |
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font_01_sfnt_off00009ec6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9EC6 | 10892 bytes |
SHA-256: 4b23021342a908ac539408626167b7fb4d78dedad6fafa4f03ea46ae9064d130 |
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