MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=oxford+english+dictionary+online'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one to a Shopify domain. The document body, though heavily obfuscated, contains text related to 'Oxford english dictionary online' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious link. The primary attack pattern involves redirecting the user to malicious infrastructure via a seemingly benign link.
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.ru/pify?keyword=oxford+english+dictionary+online In PDF document text
- http://seluko.wildwoodchurchgarner.com/uploads/1/3/1/1/131164250/gekemuvaxinajilosixa.pdfIn PDF document text
- http://files.pbssm.org/uploads/1/3/2/7/132740620/aa926599.pdfIn PDF document text
- http://files.inkycycling.com/uploads/1/3/1/4/131411857/3621525.pdfIn PDF document text
- http://files.messinger-systems.com/uploads/1/3/1/3/131380337/8702632.pdfIn PDF document text
- http://files.redlinemotorsportsnd.com/uploads/1/3/0/9/130968921/2801783.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/1/0440/6640/6550/files/mechanical_drawing_symbols_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1543/0553/files/wuruz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5612/8412/files/soxatabago.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1355/4855/files/86048042100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4732/1751/files/fajawitisileferenegu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7955/6504/files/organization_of_computer_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5173/5448/files/64475702946.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3338/7423/files/favisebovuxaxupug.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_off00006a0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A0D | 5480 bytes |
SHA-256: 6412696c869dda811764da91ad32c95e634629494583c103799eafdfe8fa66ab |
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font_01_sfnt_off00007cb7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CB7 | 10528 bytes |
SHA-256: 651fc6487841fcae88eafe11e1177d017eab8a8a85a72a3c0ace275deaac9712 |
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font_02_sfnt_off0000a0e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0E8 | 16544 bytes |
SHA-256: 4354bd37e85197a997b2f6c8c8698034d2711068b41d1b66819094364c364bcc |
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