MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to an SEO redirector, specifically 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'kelas coelenterata pdf'. The presence of multiple embedded links to external PDF files, many hosted on Shopify, indicates an attempt to create a link farm for SEO purposes, likely to obscure the malicious redirector. The ML classifier also strongly indicated maliciousness.
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.com/wb?keyword=kelas%20coelenterata%20pdf In PDF document text
- http://files.jacquelinereidphotography.com/uploads/1/3/1/3/131380305/9770550.pdfIn PDF document text
- http://files.christophertstout.com/uploads/1/3/0/9/130969645/nolaromotim.pdfIn PDF document text
- http://files.greggrfoster.com/uploads/1/3/2/6/132695651/mekisakud-sefexakeje-rikusuxajam-gomikikud.pdfIn PDF document text
- http://files.nvrha.org/uploads/1/3/0/8/130874627/9974083.pdfIn PDF document text
- http://files.anthonymichaelscatering.com/uploads/1/3/1/0/131069992/sibufo-gobiz-mebomebuwamil-gopena.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/1/0434/5679/0678/files/99825656146.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/67112685962.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5905/2706/files/10861651299.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2571/0756/files/74556815719.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12457093378.pdfIn PDF document text
- https://juzuzenevide.files.wordpress.com/2020/06/mekovu.pdfIn PDF document text
- https://kanatubovut.files.wordpress.com/2020/07/1391602002.pdfIn PDF document text
- https://limamav.files.wordpress.com/2020/06/tipexoxenebe.pdfIn PDF document text
- https://xodezepip.files.wordpress.com/2020/07/daxusuvasujositijabozega.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3425/5258/files/sinefageworowelu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doxufuvezemog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0463/2992/files/kagifi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/gawow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2392/4376/files/32000006840.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.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_off0000922b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x922B | 4856 bytes |
SHA-256: d14fd53720365f398fc9d630efa207c687c0c4447bc89ed3eefea5ebbd322acf |
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font_01_sfnt_off0000a2b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2B2 | 9928 bytes |
SHA-256: 7014d091cabc568a7607d2685935ad792f721fd0f80fee88ae28d9c04a487566 |
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