MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, directing users to a URL associated with malicious activity. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to the malicious URL and benign-looking PDF filenames, suggesting a lure to disguise the malicious intent. The ML classifier also strongly flagged this PDF as malicious.
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=printable%20blank%20periodic%20table%20pdf In PDF document text
- http://xamin.greatlakesgreatstories.org/uploads/1/3/0/7/130775732/6926377.pdfIn PDF document text
- http://files.simplycheesecakesandmore.com/uploads/1/3/1/3/131384424/9369312.pdfIn PDF document text
- http://zasugema.stonefoxfeather.com/uploads/1/3/1/0/131070493/bogumalagegemimovabo.pdfIn PDF document text
- http://files.ellenbryan.com/uploads/1/3/2/8/132815015/kulonesego_rakovarevipexe_naxomulowepi.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/1/0432/7538/7043/files/gudarunuzutar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2801/3471/files/zewutomu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4541/9165/files/search_engine_optimisation_techniques.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9489/1943/files/femevagijonedokepupanes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0876/1764/files/21446659236.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6934/0822/files/57588025164.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8813/3787/files/totesup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7946/7162/files/79690403847.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6986/6141/files/circular_economy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1771/4334/files/ap_bio_chapter_16_reading_guide_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0926/1217/files/carnatic_violin_notes_for_malayalam_songs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3241/1298/files/tovepopulodenu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/matam.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_off00006184.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6184 | 5176 bytes |
SHA-256: 9b35fd978549f86d2c61edc1daa7a4b30e4679b7510323a216682c903c024dee |
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font_01_sfnt_off0000731d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x731D | 9840 bytes |
SHA-256: 1c88b0b910fb15ab0495f674e4e1379b55365de424bb0f0775a458cb2b6c53a5 |
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