MALICIOUS
262
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file is identified as malicious due to its use of a redirector link to an SEO spam site, which is also presented as a 'free download' lure. The document body, though heavily obfuscated, contains a URL that mirrors the redirector's target. Furthermore, the document explicitly requests 'recovery secrets' or private keys, indicating a phishing or credential harvesting attempt. The ML classifier strongly supports the malicious verdict.
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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Recovery secret / private key request critical SE_SECRET_RECOVERY_LUREDocument requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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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=mastering+blockchain+2nd+edition+pdf+free+download In PDF document text
- http://files.windsweptwillow.com/uploads/1/3/1/4/131453068/vozewu.pdfIn PDF document text
- http://files.incendiamotus.ca/uploads/1/3/1/4/131437149/bepij.pdfIn PDF document text
- http://files.getpacificapps.com/uploads/1/3/0/7/130739212/sezawupop-gifenu-dovijanup.pdfIn PDF document text
- http://kugavav.perthheart.com/uploads/1/3/1/0/131070722/xozileti-mukusixew-nuzalofizum.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/1/0432/6470/4662/files/52971057883.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7542/0835/files/68151884447.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8809/9993/files/jifuvex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0714/8185/files/77788767840.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7447/7464/files/zukusinawigedokesat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7274/8710/files/nogebizefov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9501/4056/files/77502543533.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovetutokukike.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3967/7855/files/rutikojubujed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0893/3540/files/fabekigetozewetimuwuke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1805/7885/files/fapevejo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/71918212345.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_off0000d5d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5D0 | 5852 bytes |
SHA-256: 4b13b779468ca9e062ba13aa159c3c5d04df1f15b952e1bbcdcadf1a823d94f7 |
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font_01_sfnt_off0000e9d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D0 | 17068 bytes |
SHA-256: 2f5bd1ff0ebb9c31b74a376bd7c5234eb26cc206b769b10a8b3422c6cd4b62af |
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