MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=teachers+day+speech+in+assamese+language+pdf', suggesting an attempt to redirect users to malicious content. The document body, though heavily obfuscated, also contains this URL and other PDF links, reinforcing the attack pattern of a link farm designed to lure users to potentially harmful sites.
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=teachers+day+speech+in+assamese+language+pdf In PDF document text
- http://derakes.hardstoneresources.com/uploads/1/3/1/3/131383591/1114726.pdfIn PDF document text
- http://kuvudir.fathersofthedarkknight.com/uploads/1/3/1/6/131606289/5fa440e90e81.pdfIn PDF document text
- http://files.whs12885.org/uploads/1/3/1/4/131409017/d3802dd9.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/1/0429/5789/7882/files/pag._ibig_online_registration.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9512/1301/files/reported_cases_of_naegleria_fowleri_in_canada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2698/7680/files/77573165491.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9477/8791/files/54482733047.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7540/3929/files/25738321497.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3426/3199/files/17544885860.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5046/6464/files/astounding_science_fiction_magazine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/3470/9914/files/alginac_1000_bula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7783/6702/files/army_comsec_incident_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5347/2151/files/gasimipofovojuro.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000071ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71EA | 5620 bytes |
SHA-256: 1749cc58412e86f3c7e3e07b97d085298ef94c8b416a0e5026c1d460a78e2a6c |
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font_01_sfnt_off000084e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84E3 | 15856 bytes |
SHA-256: af0df03c90d945b2d4bfe2715c258019866b2214406ef0d7f8f705120d8b4ce0 |
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font_02_sfnt_off0000b631.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB631 | 4152 bytes |
SHA-256: 6436214169b01c95aa4e7afad8a6a3267c933459c02c19a7dfb487bc885f5cd0 |
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font_03_sfnt_off0000c574.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC574 | 15348 bytes |
SHA-256: 51786a4a33cf5ed6c08afa9aa17fe14ee6ebc8aed48683fa7a274e094cf04c0b |
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