MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious infrastructure. The primary redirector URL is https://ttraff.cc/pify?keyword=principales+bacterias+patogenas+pdf, which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Principales bacterias patogenas pdf' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious link farm. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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.cc/pify?keyword=principales+bacterias+patogenas+pdf In PDF document text
- http://files.sopheriacosplay.com/uploads/1/3/0/7/130739524/3d73724e7fdeba.pdfIn PDF document text
- http://files.jerrydubin.com/uploads/1/3/2/7/132741241/9f8d9289de058.pdfIn PDF document text
- http://files.littlegreenjeep.com/uploads/1/3/0/8/130813747/8549735.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/1/0435/5761/7823/files/angular_6_material_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0372/4455/files/sing_praises_to_jehovah_songbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2338/5247/files/purov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zovoxumaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9059/9319/files/wexute.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8087/4139/files/molapanitowikelij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3955/4727/files/20516127350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0857/3091/files/automotive_technology_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9085/3540/files/calculus_derivatives_examples_and_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7190/4673/files/53383183534.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0351/8882/files/vatamemavobosunaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6495/0946/files/forekeken.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8803/6505/files/riwovuxa.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_off0000794e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x794E | 5252 bytes |
SHA-256: dad3c45f3047858a5faa49de89e7bacedfd8ba6e2f3be4a596a67524581a88c9 |
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font_01_sfnt_off00008b1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B1F | 10784 bytes |
SHA-256: bafbc23ced5ef590e8a31c4571474c6e42ee2d45a6180f83e49b53394c279fe7 |
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font_02_sfnt_off0000ad1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD1F | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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