MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=download+tutorial+excel+2020+pdf'. Another critical heuristic identified a PDF link farm, indicating a large number of external links, with the first being 'https://cdn.shopify.com/s/files/1/0433/8617/5651/files/ejercicios_adverbios_de_frecuencia_en_ingles_6o_primaria.pdf'. The document body, though heavily obfuscated, contains text related to downloading a tutorial, reinforcing the lure. The ML classifier also flagged this PDF with high confidence.
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=download+tutorial+excel+2020+pdf In PDF document text
- http://texajim.hanworth-barn.co.uk/uploads/1/3/0/7/130776791/3810319.pdfIn PDF document text
- http://files.taotantricteachers.com/uploads/1/3/1/4/131409463/lilizul_xojilaminokowo_fisil.pdfIn PDF document text
- http://xifop.kickapoovolleyball.com/uploads/1/3/1/3/131381464/fawad.pdfIn PDF document text
- http://files.dalewoodbaptistpdo.org/uploads/1/3/1/4/131453674/7862620.pdfIn PDF document text
- http://files.joanberkey.com/uploads/1/3/1/4/131454255/635339.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/1/0433/8617/5651/files/ejercicios_adverbios_de_frecuencia_en_ingles_6o_primaria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3622/9277/files/butufelevedoxajolarikob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0778/6657/files/15798583707.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1628/0475/files/6251971912.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1723/8685/files/6279101639.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6327/1833/files/71598923360.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8395/4328/files/68879641437.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3503/2737/files/dosunulub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9970/7805/files/definicion_de_malos_habitos_alimentarios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11067845032.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
🗂 Part of campaign:
dalewoodbaptistpdo.org
3 samples
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008a53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A53 | 5404 bytes |
SHA-256: 83ef825c5a32ed24359f8c42d5070c5d5d219abd25ad8f260c61ad3558423012 |
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font_01_sfnt_off00009cdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CDB | 1800 bytes |
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
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font_02_sfnt_off0000a569.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA569 | 14104 bytes |
SHA-256: 50eeac2af2aa85840776a24260aaae17e33514a04bd2c1287e2daaedf5ff6064 |
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font_03_sfnt_off0000d1e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1E6 | 16312 bytes |
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939 |
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