MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to potentially malicious redirectors or link farms. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that at least one URL is known to lead to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic further suggests a deliberate attempt to create a large number of outbound links, likely for SEO manipulation or to distribute malicious content. No scripts were extracted from this sample.
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/wb?keyword=addition%20worksheets%20kindergarten%20free%20printables In PDF document text
- http://files.afmsupplements.com/uploads/1/3/2/3/132302815/972851.pdfIn PDF document text
- http://files.canningcomputerrepairs.com.au/uploads/1/3/2/6/132681477/2886187.pdfIn PDF document text
- http://files.marketmovesmatt.com/uploads/1/3/0/8/130874629/nuvigure-bufagejiv.pdfIn PDF document text
- http://files.bi-radialmatrixintro.com/uploads/1/3/2/6/132682936/volewisitogeli_tukesenuxarudew.pdfIn PDF document text
- http://files.authenticbathroomrenovators.com/uploads/1/3/1/4/131454126/jekokitupi_zerosudisusevom_refewudoxoro.pdfIn PDF document text
- http://files.iaeast-ptia.com/uploads/1/3/2/6/132696015/3383489.pdfIn PDF document text
- http://files.stlouisarchangels.com/uploads/1/3/0/7/130775867/3064516.pdfIn PDF document text
- http://files.stlouiscivilwarball.com/uploads/1/3/2/6/132695780/punipa_vefukage.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fogedovuf.files.wordpress.com/2020/07/noxajuvitipubikowojijen.pdfIn PDF document text
- https://pomedefasef.files.wordpress.com/2020/06/63835787268.pdfIn PDF document text
- https://jizixonevaxa.files.wordpress.com/2020/07/lexefekapetenaj.pdfIn PDF document text
- https://jarojadum.files.wordpress.com/2020/07/gubemataribazi.pdfIn PDF document text
- https://takipeximon.files.wordpress.com/2020/07/zejew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3127/3365/files/givevudaxoxepuveboz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4663/3621/files/86079720417.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4790/2629/files/kimasarozoguwetufagibu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jonamov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38659434623.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7188/9817/files/15689507905.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2590/7368/files/lovov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9363/8811/files/vuvegopixepe.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_off00005e48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E48 | 5376 bytes |
SHA-256: cd1635c2385a3fabfe0a08fbe6a67581164ccf6d4c29e52b418c2d4beffa3fd8 |
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font_01_sfnt_off00007095.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7095 | 9728 bytes |
SHA-256: d466e159ba3002fd47c62a650cdd878c4d44d65a1d0b6900ca893650050d3580 |
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