MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, masquerading as a 'participial adjective exercise pdf'. One of these links, 'https://ttraff.com/pify?keyword=participial+adjective+exercise+pdf', is identified as a malicious redirector. The document body also contains a high volume of links pointing to Shopify domains, likely part of a link farm to improve SEO for malicious content. The presence of a 'download button' heuristic further supports the lure to click the malicious link.
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=participial+adjective+exercise+pdf In PDF document text
- http://files.retroupholstery.com/uploads/1/3/1/4/131437530/807ed1e1.pdfIn PDF document text
- http://files.glasgowchamber.net/uploads/1/3/1/4/131453045/1405273.pdfIn PDF document text
- http://mexigas.gcaschool.org/uploads/1/3/1/0/131070872/vinurajuvedir_mefalumole_bilikukibapi.pdfIn PDF document text
- http://vulisaviw.openstudiotours.com/uploads/1/3/1/0/131070450/b6581ccba01.pdfIn PDF document text
- http://gepijiwe.youngachieversokc.org/uploads/1/3/0/8/130874317/xajurupadipovuj_ravuzaforolel_sinuramuv.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/1/0431/8766/7104/files/74981334223.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/8540/2013/files/argumentative_paragraph_about_smoking.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0473/1300/files/tuxujasibazotef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2004/1886/files/close_corporation_act_south_africa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9654/7230/files/68561305536.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2558/7609/files/61186580172.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5592/3878/files/faliritikidamuxexikoko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0324/7781/files/90184649132.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6865/2697/files/tropical_geomorphology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/read_incest_comics.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_off00004f9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F9A | 5352 bytes |
SHA-256: 885fe68019aa7c4afa7d11518f939aa9b7fe644f9afb3093db3ad3b928677371 |
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font_01_sfnt_off000061e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61E9 | 9976 bytes |
SHA-256: 7dc655b7e6b39e58363a1f9f1036e7f955118a476d24b691a79d27c13cab8c04 |
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