MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a deceptive link presented as "Ap computer science 2016 free response answers" which redirects to a malicious URL (https://ttraff.cc/pify?keyword=ap+computer+science+2016+free+response+answers). The document also hosts a large number of external PDF links, many pointing to Shopify domains, likely as part of a link farm to improve search engine ranking for malicious content. No scripts were extracted, but the primary attack vector is the malicious redirector.
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=ap+computer+science+2016+free+response+answers In PDF document text
- http://files.growlerlamp.com/uploads/1/3/1/4/131407445/1664686.pdfIn PDF document text
- http://files.pharmalauren.com/uploads/1/3/2/6/132696414/jiwul_vigeneba_sukolumekodave.pdfIn PDF document text
- http://files.mdddssolutions.com/uploads/1/3/1/3/131383953/gutatiris-lumot-jamufojotebo-duzobegagijaxet.pdfIn PDF document text
- http://files.advancedanaerobics.com/uploads/1/3/0/9/130969555/davam.pdfIn PDF document text
- http://files.commonwealthathletics.com/uploads/1/3/2/7/132740172/wedojofodevapen-moxib.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/1/0433/7260/9686/files/jiwulosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0896/6301/files/83748519268.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/24879755499.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4910/6073/files/short_sword_texture_pack.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1755/2543/files/14281486055.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7833/6165/files/butepaporutepuli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8448/8610/files/aws_security_blog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8260/3927/files/rewizodoworagit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7985/0398/files/43630188116.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38030937597.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mojarugalemidim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93336639176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3664/7317/files/98771319427.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1791/9909/files/2429475773.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6108/3301/files/vonaziz.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_off00006a9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A9A | 5692 bytes |
SHA-256: 2598936d29fe5e6c888ca0b4756c6e80bad6f01891e9be3c30c3163c014d2573 |
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font_01_sfnt_off00007e00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E00 | 15288 bytes |
SHA-256: 2d0f102c25070d8f729934c02655c22aaedbc69e0d28ebcc59272f23e98a593f |
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