MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=princeton+blockchain+book+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links to external PDFs, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking title, suggesting a lure to download potentially malicious content. No scripts were extracted from this sample.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=princeton+blockchain+book+pdf In PDF document text
- http://files.americaninfousa.net/uploads/1/3/1/3/131383478/vimufixoze_tidumaroxerisaw_xomibibi_sefurikot.pdfIn PDF document text
- http://files.rarebreednationllc.org/uploads/1/3/0/7/130740504/3bc46ae.pdfIn PDF document text
- http://files.burlingtonedisonlittleleague.com/uploads/1/3/1/3/131381428/4846565.pdfIn PDF document text
- http://files.mrizzo1964.com/uploads/1/3/0/9/130969600/d3f88a1c3.pdfIn PDF document text
- http://garegaj.signsof.com.au/uploads/1/3/2/3/132303245/kegojusugogoli.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/1/0438/1304/4386/files/zisupogonu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8893/7120/files/jodotuxuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0360/0283/files/49691173702.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5547/1002/files/bricks_beads_and_bones_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5371/9453/files/milofolisavugoki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8768/4003/files/present_simple_and_continuous_exercises_easy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0094/5048/files/the_onion_book_of_known_knowledge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0134/8255/files/nusosiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/civil_drafting_technology_7th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6222/3263/files/zafefom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7281/3211/files/71104541159.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8501/1871/files/sakawoxokejuno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5513/7447/files/zibikegaxa.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_off00006618.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6618 | 5272 bytes |
SHA-256: 673196f2fdd1679b510be9901adf44943d983f6fa1b35c550b4494a74e75fff8 |
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font_01_sfnt_off000077e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E1 | 10504 bytes |
SHA-256: 31f95644fa115a6361f613748b6287ecb478e7ca5db7482d55d6e253d1f164ad |
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