MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files, a technique often used for SEO poisoning to improve search engine rankings for malicious content. One prominent link, disguised as 'Purple martin birdhouse plans pdf', redirects to 'https://ttraff.ru/pify?keyword=purple+martin+birdhouse+plans+pdf', which is flagged as a malicious redirector. The presence of a 'download button' lure further supports the malicious intent.
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.ru/pify?keyword=purple+martin+birdhouse+plans+pdf In PDF document text
- http://domoxum.premsc.com/uploads/1/3/1/6/131637814/dovujegulikopujuxija.pdfIn PDF document text
- http://files.thecontemplativeacademy.com/uploads/1/3/0/9/130969190/luzafusabovadud.pdfIn PDF document text
- http://metuvube.menniescapens.com/uploads/1/3/2/7/132712326/6195271.pdfIn PDF document text
- http://files.annascafebar.co.uk/uploads/1/3/1/4/131406947/dametopujanoparoko.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/1/0447/8458/2813/files/fisiopatologia_de_esquizofrenia_paranoide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6040/3103/files/kinematics_equations_practice_problems_answer_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0029/9683/files/zirovuzowuzizuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8794/4094/files/guide_yasuo_mua_9.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4672/1946/files/scott_pilgrim_vs_the_world_game_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1609/3849/files/aprender_ingles_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6385/9610/files/daxasijenirunafotajaxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8419/3697/files/lizadivanovaxateki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7669/7760/files/eagle_scout_workbook_filler.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2631/7473/files/maine_pyar_kiya_title_song_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8774/9529/files/wumozenufakepumezora.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_off00007c99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C99 | 5424 bytes |
SHA-256: 34c40aa34be562ee3daa591dbe38f5076eec12690d3298895ba376a3af2a9ce3 |
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font_01_sfnt_off00008eca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8ECA | 10612 bytes |
SHA-256: e47ac4175e19ac708643a171f8ac09f768b4a25fe3e4f47d697ec22692fb2b97 |
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