MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One primary link, 'https://ttraff.cc/pify?keyword=esl+worksheet+for+grade+1', is identified as a malicious redirector. This indicates the document's purpose is to lure users through a deceptive download pretext to malicious infrastructure.
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.cc/pify?keyword=esl+worksheet+for+grade+1 In PDF document text
- http://files.wordsmithphoto.com/uploads/1/3/1/4/131483371/2d7377cf2f2f80c.pdfIn PDF document text
- http://files.toralconsulting.com/uploads/1/3/0/7/130775732/6a26d23286b0c6.pdfIn PDF document text
- http://files.avsyum.com/uploads/1/3/2/3/132302876/bebaj-vutetulawuxugip-bitobazur.pdfIn PDF document text
- http://files.robertthorntononline.com/uploads/1/3/2/8/132815054/d4c2813e8aa84.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/1/0430/5770/9210/files/approval_form_1b.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1522/4996/files/94560372737.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0523/8692/files/lumemosejovoxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6836/6760/files/zoxikowufigarowixaxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7347/8560/files/vemon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7378/8321/files/cuentos_cortos_en_ingles_con_imagenes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2878/3002/files/70505268915.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2225/3205/files/lil_louis_french_kiss.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6294/2106/files/98980610988.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9728/3992/files/carcharhinus_longimanus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6636/8935/files/appareil_digestif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4394/5622/files/act_reading_practice_test_with_answers.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
🗂 Part of campaign:
graycoolingman.com
3 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005dec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DEC | 5332 bytes |
SHA-256: 281a14c18b6dd15bce0a0e6898901775310ef4207774b58815fdecc3c253b809 |
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font_01_sfnt_off00007025.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7025 | 10224 bytes |
SHA-256: 5a84ff8b7e07e33f19a95ae812f3c1b2d9b4b87549d321d11fc5480d55f0465b |
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