MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to appear as free book downloads, with the primary link redirecting to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection. The ML classifier also strongly indicates maliciousness. No scripts were extracted, but the document body and heuristics point to a social engineering lure to drive traffic to a malicious site.
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.ru/pify?keyword=adorsho+lipi+book+pdf+free+download In PDF document text
- http://files.stephaniearnoldcello.com/uploads/1/3/1/6/131636726/zezusikesuwasu.pdfIn PDF document text
- http://vuwatofe.oakislandgold.com/uploads/1/3/0/9/130969744/6bfd4b1f9.pdfIn PDF document text
- http://files.madisonhaines.com/uploads/1/3/1/0/131070523/af3fa172c25964e.pdfIn PDF document text
- http://files.getitwright.com/uploads/1/3/0/7/130776788/pufim-fafopunatobi.pdfIn PDF document text
- http://files.joyfulnoisedoula.com/uploads/1/3/1/4/131483275/bimuwupulatiwaruwaza.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/8675/7536/files/19342739302.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3733/5464/files/39011574368.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0491/9971/files/meditations_marcus_aurelius_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5922/4480/files/jovoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5633/9871/files/famous_books_and_authors_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5702/9019/files/90919492775.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7997/5591/files/doki_doki_literature_club_poems.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6033/9623/files/gimuzubuze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9618/5763/files/el_rey_arturo_ylos_caballeros_de_la_mesa_redonda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3296/0409/files/dtv_atlas_astronomie.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7580/6119/files/zomumifamusokevorurogejul.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004c85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C85 | 5124 bytes |
SHA-256: dc0b3147c71503ac8804be51033d9fb54dc7fd4a638b22bf27ab80b3508e5b2b |
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font_01_sfnt_off00005de3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DE3 | 10376 bytes |
SHA-256: ea9fbb1c172410a5871dfa176a961e05500c51e2db3b1273c723b5330b971aba |
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font_02_sfnt_off0000809f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x809F | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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