MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, a common tactic for SEO spam or phishing. One critical heuristic identifies a link to a known malicious redirector at 'https://ttraff.ru/wb?keyword=exercise%20verb%20to%20be%20present%20pdf'. Another heuristic flags the document as a PDF link farm, indicating a large number of external links, many hosted on cdn.shopify.com. The presence of a 'download button' lure further supports a malicious intent to redirect the user.
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.ru/wb?keyword=exercise%20verb%20to%20be%20present%20pdf In PDF document text
- http://files.robpedley.co.uk/uploads/1/3/1/3/131398582/mumajewufibupazotok.pdfIn PDF document text
- http://files.chicagoschoolofgrappling.com/uploads/1/3/1/4/131409170/312064.pdfIn PDF document text
- http://files.talgolani.com/uploads/1/3/2/7/132740296/tefimuxoponu.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/1/0432/4674/7803/files/20824618214.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6895/6565/files/72852875015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3459/0875/files/64216005850.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0333/0209/files/jutuladuda.pdfIn PDF document text
- https://forenuxi.files.wordpress.com/2020/06/38404555602.pdfIn PDF document text
- https://wowewuso.files.wordpress.com/2020/06/51459539230.pdfIn PDF document text
- https://pagapulikuv.files.wordpress.com/2020/06/5804613773.pdfIn PDF document text
- https://xumufikok.files.wordpress.com/2020/07/sajisunimobajenimag.pdfIn PDF document text
- https://ratekoxon.files.wordpress.com/2020/07/36256552613.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0032/3478/files/rigetunikijoretoguvilezol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6641/7571/files/delojopelamekonigesi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wuvinotagug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4797/5062/files/figotezonegimevopixija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8359/4917/files/3438362723.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8150/7740/files/zunasowenozoxujeloz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1485/5583/files/lofunav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7846/7222/files/5363311615.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7954/1671/files/kuwukarolawudam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6497/5765/files/kawedijemojelepukus.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_off00005e58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E58 | 4920 bytes |
SHA-256: b90b1337fafb0f2c11a2a7cd8cd687d92ed9309af3d2248177e980bebcd3d287 |
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font_01_sfnt_off00006f1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F1D | 9672 bytes |
SHA-256: 21dd7a5584495fbaa80989f3d0c461997b5421351f705b050222b34dffb72d86 |
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