MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains a lure with a "failed download error" and a link to a redirector, indicating a phishing or malware distribution attempt. The presence of numerous SEO-optimized links suggests an attempt to broaden reach for malicious content. The document also contains instructions to disable security software, which is a high-risk indicator for malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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.com/pify?keyword=failed+download+error+needs+authorization In PDF document text
- http://files.calacascalifornia.com/uploads/1/3/0/8/130873923/sesabuximon.pdfIn PDF document text
- http://files.djconsuelo.com/uploads/1/3/1/3/131379591/difikuz.pdfIn PDF document text
- http://rorupol.thecatsmeowtarotandtalismans.com/uploads/1/3/1/0/131070027/9267947.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/1/0435/8691/2413/files/acer_aspire_one_zg5_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6001/7814/files/28052227285.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4275/8056/files/github_pull_request_workflow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2052/5461/files/nigemixulokexaxelap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3203/4976/files/b_a_pass_2017_movie_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5093/3155/files/68799811461.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7449/4369/files/resovor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0900/0103/files/wemodarosevugimare.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1407/6069/files/gexaduban.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6556/3549/files/catholic_bible_study_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3128/1312/files/bunonudu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2890/4093/files/didabevevofu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0083/9842/files/balanza_de_comprobacion_ejemplo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2880/6806/files/basic_engineering_circuit_analysis_9th_edition.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_off00006924.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6924 | 5012 bytes |
SHA-256: dc95f0f57b233b955838819d5ae394ae29895d131c21ee0a9e5d54b1656e2c74 |
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font_01_sfnt_off00007a3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A3D | 10148 bytes |
SHA-256: a280d1e8da2bf6fc78b9be15ad2b6e34683259ed66810357a2baa3ef4856b1f5 |
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