MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains multiple embedded URLs, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for an 'expanded accounting equation template'. This, combined with the heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'SE_CALLBACK_LURE', suggests a phishing or scam attempt. The presence of numerous links to Shopify-hosted PDFs, while many are benign, indicates a potential link farm used to obscure the malicious redirector.
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=expanded+accounting+equation+template In PDF document text
- http://gozab.stephenlotus.com/uploads/1/3/1/4/131454035/9655654de4.pdfIn PDF document text
- http://files.rosaveritas.nl/uploads/1/3/0/7/130738675/2619277.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/1/0427/8996/1884/files/fitemenusororar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0866/2440/files/nuwupidofawisorimemiwab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1415/2607/files/61213292072.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2287/5800/files/feline_leukemia_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/32297594515.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8307/0629/files/78544378355.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2032/8853/files/line_chart_d3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3371/3050/files/zufujozezet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4686/0957/files/anticipatory_bail.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0921/9492/files/2693473837.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7027/5236/files/36160170870.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4858/2820/files/furuxupekapodebal.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_off00008b2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B2C | 5268 bytes |
SHA-256: d8f5b96565364aa5d1733fc59ef5bae1d8fd4e46b07892940c0a9f434539c5a7 |
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font_01_sfnt_off00009d03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D03 | 10648 bytes |
SHA-256: 3671ae04d99e71c514187de2c72a3132ad6fd90479f78cba74ec1635e35fe98b |
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