MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious Link
T1566.002 Spearphishing Attachment
The PDF contains a malicious redirector link pointing to 'ttraff.ru', which is associated with malicious activity. The document body also contains a call-to-action phrase and the embedded URL, suggesting a lure to download a file. The presence of a large number of external PDF links further indicates a link farm, often used for SEO poisoning or to obscure malicious destinations.
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.ru/pify?keyword=trustedinstaller.+exe+windows+7+x64 In PDF document text
- http://files.genprice.shop/uploads/1/3/1/4/131453226/723370.pdfIn PDF document text
- http://files.columbuschristianacademy.com/uploads/1/3/0/8/130874126/19d18f52.pdfIn PDF document text
- http://files.blairmielnikdesign.com/uploads/1/3/0/7/130739247/5e02b27.pdfIn PDF document text
- http://files.davidgarza.com/uploads/1/3/0/7/130776374/b939f2d.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/1/0432/9809/5272/files/ielts_academic_writing_practice_test_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/encyclopedia_of_candlestick_charts.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3698/2944/files/55130007931.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7941/7504/files/9607044222.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7467/3050/files/95946720140.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2758/5430/files/enzima_aspartato_aminotransferasa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1249/7312/files/maths_syllabus_d_book_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7038/2490/files/84734847165.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xakikalimakimoxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8328/2070/files/marriage_biodata_format_hd.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7129/9999/files/among_us_apk_mod_2019._8_9.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_off00006d2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D2B | 5280 bytes |
SHA-256: 449d1434ee506ce242052cfa0002062dc7af3afca1f039dc95e5e0737dfc6f5b |
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font_01_sfnt_off00007f52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F52 | 11096 bytes |
SHA-256: 2ce261965c5b1f46d6e44951acb95c516c10e927f65394ad64a783c7fcad2180 |
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font_02_sfnt_off0000a4de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4DE | 16484 bytes |
SHA-256: 060a7d97e72893e0ea86a8f4d57c813c93f89f7f5f965b91fc9f2dfacac99ac6 |
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