MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/pify?keyword=leetcode+reverse+linked+list'. It also exhibits characteristics of a PDF link farm, containing numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. 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.cc/pify?keyword=leetcode+reverse+linked+list In PDF document text
- http://files.ninjamagik.com/uploads/1/3/0/8/130874629/jatupisejumelovavog.pdfIn PDF document text
- http://files.soudersthirdgrade.com/uploads/1/3/1/8/131856602/5ec6a7e4e88c5.pdfIn PDF document text
- http://files.fvmediacenter.org/uploads/1/3/2/6/132695582/2955529.pdfIn PDF document text
- http://files.liztatecanrelate.com/uploads/1/3/1/3/131398333/6bb181ec65b6.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/1/0433/4521/5656/files/32234391732.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9324/5590/files/28998518717.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/buzemadezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4979/4213/files/wavapuloxesuwemasuzi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4434/6792/files/vorukuxetowenupumorub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6256/5795/files/55233388342.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0673/0144/files/petebozu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2371/9845/files/xuzebasaraxutibetiguli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0814/8127/files/24207944431.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4571/5109/files/nafovekizazor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9371/2286/files/bokakasipodefidana.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5680/8607/files/29533739626.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_off000064d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64D7 | 4788 bytes |
SHA-256: dea657b5ec3b38913303662e59d46b52ed7c50440fe13f2af72d623bba6f1ff6 |
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font_01_sfnt_off00007537.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7537 | 14804 bytes |
SHA-256: 702e9066fc02025fc041c9f35847041c0c0e8023fd301d94b69e2571a8747223 |
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font_02_sfnt_off0000a353.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA353 | 16036 bytes |
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940 |
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