MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=assignment+problem+hungarian+method+pdf'. This URL is likely part of a phishing or scam campaign designed to lure users to malicious content. The document also contains a large number of embedded external links, many hosted on cdn.shopify.com, which is flagged as a PDF link farm. The document body itself contains obfuscated text and the target URL, further supporting the malicious redirector intent.
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=assignment+problem+hungarian+method+pdf In PDF document text
- http://files.riversidechapelforbes.org/uploads/1/3/0/8/130874474/nunokekuponuge.pdfIn PDF document text
- http://tizeniz.jingwilliams.com/uploads/1/3/1/1/131164250/bekolatow.pdfIn PDF document text
- http://files.greenwichyouthcenter.org/uploads/1/3/1/4/131437563/db29d375.pdfIn PDF document text
- http://files.scrantontennisclub.com/uploads/1/3/0/8/130874458/4183253.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/1/0437/8948/4189/files/sexorobazovi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4019/2150/files/typing-_speed-_test._aoeu._eu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6597/4690/files/zogefidiwiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2429/3796/files/tutefiki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7784/5671/files/rovudapobuxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4745/0789/files/xupuvijudi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0682/7429/files/zejan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4294/6715/files/69432313770.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9309/8660/files/74089205887.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/tizoxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4285/6344/files/35929458318.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8632/1566/files/nuzusetudetu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9886/4800/files/33858160601.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_off0000877b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x877B | 5584 bytes |
SHA-256: cc10035a13c4b2cbb89d9017ae301ac060da9e13d12207d566a5f971318ba1ad |
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font_01_sfnt_off00009a44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A44 | 10732 bytes |
SHA-256: b1a1fc94cc277afb3c8ec61255dc5e07ce92761a43c93474b1723d3ec6fd6d4f |
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font_02_sfnt_off0000bf2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF2F | 16540 bytes |
SHA-256: 68d4bb40c1dcb0ad4b85299c2133bacc54bcacf50f888888ca8529624987f635 |
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