MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, suggests it is disguised as educational material ('Worksheet for grade 1 evs'). The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=worksheet+for+grade+1+evs', which likely serves as a gateway to further malicious content or phishing pages. The presence of many links hosted on cdn.shopify.com, even if some are marked benign, indicates a link farm strategy.
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=worksheet+for+grade+1+evs In PDF document text
- http://files.exodusblog.com/uploads/1/3/1/6/131606256/pijelo.pdfIn PDF document text
- http://files.leoniehigginsnoone.com/uploads/1/3/0/7/130775277/8797331.pdfIn PDF document text
- http://files.beefalonorthwest.com/uploads/1/3/1/8/131871433/tukijunutus.pdfIn PDF document text
- http://files.christianpensel.com/uploads/1/3/1/4/131454459/8010404.pdfIn PDF document text
- http://files.annelisestenseth.com/uploads/1/3/1/4/131482884/wutufonid_latijevunogid.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/1/0431/0233/9232/files/zuwawewod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5226/9717/files/nepuridekisorowem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5737/3589/files/46343670304.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6748/7894/files/90079947780.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9142282406.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1808/1688/files/86806674847.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0092/2261/files/zobesivotepikaxapa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/62318153297.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0638/5558/files/duzarebug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1498/7674/files/6029994622.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2865/9880/files/99646687180.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7620/6240/files/nategadelo.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000075d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75D8 | 4960 bytes |
SHA-256: de1ee113c9d5b6e644bf631c9f4a90b90d2eca29d49e7190013b3c22c49d4890 |
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font_01_sfnt_off000086e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86E2 | 7144 bytes |
SHA-256: 20cc4dfd5dbbf3820330b72de64f2c176cc528799433e9762ab6806667b8c60b |
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font_02_sfnt_off00009afe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AFE | 10040 bytes |
SHA-256: 0e29c07bafb14c80b9f18c002c7e7e78be92655579bd3d29d4d822c1765c3bc2 |
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font_03_sfnt_off0000bd8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD8E | 17492 bytes |
SHA-256: 459bc91fdd7ab87ea9ebc1797b1a3b948737d9d3234b6cc534cb86313abda916 |
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