MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=chapter+24+studying+the+sun+answers', is identified as a malicious redirector. The document's content, disguised as a study guide answer key, is a lure to encourage clicks on these links, which likely lead to further malicious content or exploits. The ML classifier also strongly indicated maliciousness.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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.cc/pify?keyword=chapter+24+studying+the+sun+answers In PDF document text
- http://files.sunsetridgeatlanesend.ca/uploads/1/3/1/4/131453355/6121706.pdfIn PDF document text
- http://rasigifu.malti-pooscavalierkingcharlesspaniels.com/uploads/1/3/1/3/131380177/d3f244fddcf.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/1/0436/9419/4843/files/47622627059.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5425/1670/files/100_cotton_bed_sheet_set.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4295/4661/files/gevarulekomakadugij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1303/6439/files/7556866117.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6780/1749/files/datijenifune.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2784/0675/files/24995937037.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0971/9965/files/93492985395.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8274/2950/files/jivet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3518/7605/files/tigexetu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3804/0487/files/wepuzu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3078/9800/files/a_b_m_ka_full_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5135/1197/files/x12_999_companion_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5293/3019/files/polotixofivasilub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0965/5462/files/cradlepoint_ibr1700_spec_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3565/5335/files/apple_company_balance_sheet.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_off0000475f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x475F | 5508 bytes |
SHA-256: 947010d1d444a1cd24b5e11fdeb08e6e56bcd6c61744b88b6e1cfe9e78efd0d3 |
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font_01_sfnt_off00005a30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A30 | 9052 bytes |
SHA-256: ca6b42060f25731b34d3371b5a7a560ae7ffd73dc17f29900c44d6a867e6394c |
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