MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm with 19 external PDF links, many hosted on Shopify, and a critical redirector link to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking title 'Beersheets 2019 draft', suggesting a lure. The primary malicious indicator is the PDF_MALICIOUS_REDIRECTOR_LINK heuristic, indicating the link likely leads to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests a tactic to distribute malicious links widely. No scripts were extracted from this sample.
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.cc/pify?keyword=beersheets+2019+draft In PDF document text
- http://files.jeremymichaelcohn.com/uploads/1/3/2/7/132710732/bajuxezune-vudanizigakin-jifedikipexinet.pdfIn PDF document text
- http://files.joshrjones.com/uploads/1/3/0/8/130815095/9762814.pdfIn PDF document text
- http://rifuxilub.kaylabegay.com/uploads/1/3/2/8/132814928/65a763d50db.pdfIn PDF document text
- http://duwerese.rachelloganillustration.com/uploads/1/3/2/7/132712413/9819306.pdfIn PDF document text
- http://rimolepi.michelleboyd.net/uploads/1/3/2/6/132695492/1490698.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/1/0437/6117/2631/files/75525374572.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5473/4241/files/47411190917.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6350/1222/files/kajigusotonozezetixap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5198/3772/files/jufeja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1219/2413/files/nirugakoxadexofaniro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4288/2215/files/javunu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8423/4398/files/dirawokolozagaxil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1537/2949/files/razerig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0564/8807/files/xabitasawelanad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45865267400.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5956/0094/files/9480067794.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8250/6647/files/29236386296.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuxevitilikibuvenimomabu.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_off0000649f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x649F | 5496 bytes |
SHA-256: 625e6fc18ce68d51ef0c51fcd3dfefa7b9b0cdf643431a32a43fab61bb435d74 |
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font_01_sfnt_off0000774b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x774B | 10868 bytes |
SHA-256: 03fc108b87cb8979fca45f1c1085c62d71b417b1d0e41e1050dca2ea5ce12b8c |
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