MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF file contains numerous embedded links, a technique often used to redirect users to malicious websites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is part of a link farm designed to obscure the final destination. The document body, though heavily obfuscated, suggests a lure related to a 'scholarship acceptance letter'. No scripts were extracted, limiting the analysis of direct execution capabilities.
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=scholarship+acceptance+letter+sample+pdf In PDF document text
- http://files.labamboovixen.com/uploads/1/3/1/4/131406153/5f130e7043c111.pdfIn PDF document text
- http://files.clarevet.com/uploads/1/3/0/7/130738814/6baf8b64a8319.pdfIn PDF document text
- http://files.yellowpointfarms.com/uploads/1/3/1/4/131483027/fffa0eb2cdafd5c.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/1/0428/3318/2886/files/kefemo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9378/6791/files/59880702755.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2848/0157/files/tifojosokumetuvumuruni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3051/1779/files/44529868084.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6244/2661/files/nomadapafivutilaxovubibuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/komonizogamuverefolutir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5307/9963/files/88563835022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0992/3480/files/48057874508.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1126/0062/files/48444450056.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9966/1223/files/mawunusebozorokudegumu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3880/2073/files/65510374059.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1687/0298/files/gezejakupone.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_off0000765c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x765C | 5288 bytes |
SHA-256: 4cf15c580b110ee81ceef8f913cf52a4fd13654abfef4d1ad80fd71e1bc0b2ad |
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font_01_sfnt_off00008817.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8817 | 10248 bytes |
SHA-256: d3e3c4c695a5568112f49f3ab66aa8b79e51d740b5a63697153cc8a3d0cf5fc9 |
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font_02_sfnt_off0000ab6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB6E | 16436 bytes |
SHA-256: 82ff1b67254b78c1ee0adf625a5874e83155b3daef551421cdcfc373801bb273 |
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