MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The embedded document body text also contains the URL that leads to the malicious redirector, suggesting a lure for users to download a fake PDF. The primary malicious IOC is the redirector URL, which is likely used to funnel users to further malicious content.
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.com/pify?keyword=chess+french+defense+pdf+free+download In PDF document text
- http://files.ezekiel37ministries.org/uploads/1/3/1/4/131408170/1280117.pdfIn PDF document text
- http://files.fauxmesticgoddess.com/uploads/1/3/1/8/131856381/gevaxil.pdfIn PDF document text
- http://files.jsarchiveconsultancy.com/uploads/1/3/0/8/130814245/xemuzisisojise.pdfIn PDF document text
- http://files.allsystemsgrow.org/uploads/1/3/1/4/131454102/punijifibozo.pdfIn PDF document text
- http://files.alteanunez.net/uploads/1/3/0/7/130775084/a8c12.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/1/0434/9270/4408/files/850151783.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5165/6102/files/defedurajote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5100/5590/files/water_wastewater_and_stormwater_infrastructure_management.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2893/7880/files/nelurape.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7697/4747/files/canon_700d_specifications.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6805/4949/files/vukexaxoxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6097/7048/files/gisotopab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6878/2757/files/86197677897.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3144/5149/files/stealin_uriah_heep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7361/0663/files/91084073592.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7250/4483/files/68115545637.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0659/0106/files/6415425719.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3859/7539/files/1542396532.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3428/0099/files/12669108836.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_off000075b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75B7 | 5240 bytes |
SHA-256: de2cc3a9e0de9918c1ceb8e06c0b5c6d9bca529310e82ba93600786113c17b98 |
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font_01_sfnt_off0000878d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x878D | 13840 bytes |
SHA-256: 773bf3466cecc0a412f913042a186b7c70c7f9fd81972de2c9874c9389bbfb7f |
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font_02_sfnt_off0000b340.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB340 | 16416 bytes |
SHA-256: ba11a93f5048ae8472b7177df685806fd18b8cc29be6b0d4f33ce6e98c2a9d3b |
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