MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains embedded links, one of which, 'https://ttraff.com/pify?keyword=bengali+calendar+2020+download+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain references to the same lure. The presence of numerous other links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to increase visibility of the malicious content. The ML classifier also strongly indicated maliciousness.
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=bengali+calendar+2020+download+pdf In PDF document text
- http://bojonupo.georgevecsey.com/uploads/1/3/2/6/132681670/baea457b98cc5.pdfIn PDF document text
- http://files.photo-co-op.com/uploads/1/3/0/9/130969775/b0990d.pdfIn PDF document text
- http://files.yourlocalhandyman.org/uploads/1/3/2/6/132695636/1666867.pdfIn PDF document text
- http://files.mrober.com/uploads/1/3/0/7/130775232/0b9a56811f690.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/1/0427/7082/5382/files/struts_framework.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7507/5225/files/7_characteristics_of_living_things_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2717/6344/files/13816258846.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4338/9597/files/32046532592.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1888/7068/files/kabota_snow_plow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3724/5085/files/glencoe_6th_grade_science_textbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9212/4572/files/zetepimopezirupagunu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5757/7122/files/mujezubavakalate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4639/6326/files/english_consonant_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0716/5095/files/kipowawoserixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4726/4166/files/14108830385.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C01 | 5560 bytes |
SHA-256: 91cfbbd954ce39c5fbb7e57700ace1bafaa973ccac5d60054af2b8cf6de4f78c |
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font_01_sfnt_off00007f0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F0E | 10876 bytes |
SHA-256: f0c00448b98a808a5802561c1cf291a7ce407f0fe4daf0979b4604add137bfcc |
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font_02_sfnt_off0000a224.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA224 | 9976 bytes |
SHA-256: 771c2c03a1bd7705929ee84d3c03424df1d61b867c35dc89119f8aff33fe3962 |
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