MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to a phishing or scam attempt. The document body, though obfuscated, contains a URL that matches the redirector found in the heuristics, suggesting an attempt to trick users into downloading a font. The presence of embedded URLs and the ML classifier further support the malicious classification.
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.com/pify?keyword=adelicia+script+free+font In PDF document text
- http://files.high5communicationresources.com/uploads/1/3/1/4/131406537/6fbcc6d24052.pdfIn PDF document text
- http://files.thechildrensvillage.net/uploads/1/3/2/7/132712015/2399813.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/1/0429/6392/7206/files/15133360807.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0733/6863/files/12528069500.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1141/5959/files/6385502839.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7736/0029/files/1910_constitution_of_south_africa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4908/2264/files/rugude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2032/8865/files/67191636942.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1783/7467/files/have_you_ever_worksheet_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/2038/1342/files/cancer_de_piel_en_costa_rica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1084/1000/files/www._prepaidrewardscenter._com_visa_card_activation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4211/8555/files/wow_classic_hunter_macros.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6335/2227/files/tifadipuvudasom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9869/4042/files/75139485995.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000555c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x555C | 5140 bytes |
SHA-256: 7bfcf57f79587a98ea0e0c9712bd5c460b0e1555ef9107e0c47262360dbec8b4 |
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font_01_sfnt_off000066e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66E0 | 10708 bytes |
SHA-256: d80ab5d71d4cfd23dae543e0cd2f709d5d961a34b23a905277401a48171921e1 |
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font_02_sfnt_off00008aff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AFF | 16084 bytes |
SHA-256: fb27248ec02d804caa0ce6a8dd06a8f0f211157336bc50f6c382585ff5fe3da3 |
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