MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=james+stewart+calculus+solutions+manual+pdf', is designed to lure users by appearing to offer a calculus solutions manual. The PDF also contains a link farm heuristic, indicating a large number of external links, many of which point to shopify domains. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves social engineering through a deceptive document title and malicious links.
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.cc/pify?keyword=james+stewart+calculus+solutions+manual+pdf In PDF document text
- http://files.architect-mostafa.com/uploads/1/3/2/6/132695294/xewumobeg.pdfIn PDF document text
- http://files.thesilkfamilyproject.com/uploads/1/3/1/4/131437740/livig.pdfIn PDF document text
- http://files.sneakerempireorange.com/uploads/1/3/1/4/131483371/bakutiji.pdfIn PDF document text
- http://files.westchaseassociation.com/uploads/1/3/1/3/131378993/2e5ade.pdfIn PDF document text
- http://files.sillassenhalf.com/uploads/1/3/0/9/130969555/bevijidu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/1033/4620/files/96975277229.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2135/3635/files/botunelufabotuges.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/vakenavesofuwawufix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6921/0773/files/wipisizenenen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4189/0210/files/nazaruwurarifamu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6993/1673/files/15906815684.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2981/5705/files/donavo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8099/0366/files/nurezawotejubup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9821/9420/files/93813721618.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6337/7048/files/96098175306.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5511/9520/files/banev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4786/9850/files/fudapabaporar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9499/0247/files/rewirelepilovon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2499/7800/files/60598025075.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005517.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5517 | 5264 bytes |
SHA-256: 98e5b9b67384318941ddd2771a016db6ada6172b99b51febceec88e614fa4751 |
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font_01_sfnt_off000066e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66E8 | 10436 bytes |
SHA-256: 95bdc2f524a45bebb914499bda926a58485da200b66a5b64a4bdd46854a25217 |
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font_02_sfnt_off00008a3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A3F | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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