MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented in the document body as a lure related to 'centrifugal compressor calculations'. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm used for SEO poisoning or to obscure the true destination. The ML classifier strongly flagged this PDF as malicious.
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=centrifugal+compressor+calculations+pdf In PDF document text
- http://files.chrisbaecker.com/uploads/1/3/1/8/131858540/461f406caf.pdfIn PDF document text
- http://files.dairyflatponyclub.org/uploads/1/3/0/7/130739142/vidibobipal.pdfIn PDF document text
- http://files.ccsflippinvintage.com/uploads/1/3/0/8/130814043/vefelegelukijujazozi.pdfIn PDF document text
- http://datimoli.northforkpoa.org/uploads/1/3/1/3/131379591/zofotalapoli.pdfIn PDF document text
- http://files.schabatavia.org/uploads/1/3/1/3/131398334/vitulo-kogadoger-pirideloge.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/1/0436/7591/0294/files/144323245.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6473/7433/files/47128478100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8152/2599/files/australian_capital_territory_map.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/3286/6979/files/olivier_blanchard_macroeconomics_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2065/6545/files/tutepifetogujeruzo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/faramerujinusopuko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8898/6783/files/zanabukun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3196/0474/files/33862428212.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/herolab_plugin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7431/3621/files/nonibad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6797/4556/files/26812440143.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9408/0677/files/97707515788.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8134/3900/files/31353812329.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_off00007691.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7691 | 5380 bytes |
SHA-256: bd5d16da2b44e8db2b0eba0ca0fda6b6ee5a8c2974243fb61a0bc6bc2d132efa |
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font_01_sfnt_off000088bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88BC | 10312 bytes |
SHA-256: 2782f37c8386b62106e1b6f8a310756f15229579bdadbaf1f3e213f9ef929ccc |
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font_02_sfnt_off0000ac5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC5D | 16236 bytes |
SHA-256: b1345b03cb8ff90cb42c7c8f61cc0a97610ec8082568e26930ee59dd54284444 |
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