MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, with one identified as a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=cbse+sample+paper+2020+class+12+physics+pdf, which likely serves as a lure to a phishing or malware distribution site. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the malicious redirector heuristic.
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=cbse+sample+paper+2020+class+12+physics+pdf In PDF document text
- http://files.njwrclub.org/uploads/1/3/1/4/131437513/fa56b.pdfIn PDF document text
- http://files.sophiamulheran.com/uploads/1/3/0/8/130813526/1584386.pdfIn PDF document text
- http://files.camellahomescavite.com/uploads/1/3/2/6/132682974/fe61f9.pdfIn PDF document text
- http://files.cabezonmastiffs.net/uploads/1/3/1/6/131636612/xonujovuwojip_rarebifuro.pdfIn PDF document text
- http://files.nicolajanephotography.com/uploads/1/3/0/7/130740213/tukoxakavusogezijuz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/5283/4711/files/82427173084.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0736/7592/files/12171476599.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8615/9767/files/20287196838.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2728/1558/files/fijiri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3556/4949/files/architecture_design_in_software_engineering.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8789/6488/files/vevorisabu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7166/7352/files/pajolutozazodixorozopaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4120/1064/files/11266091840.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3233/6791/files/20448640938.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0054/2878/files/7890979579.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1335/7211/files/34997710205.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/2279/0305/files/mig_welding_machine_specification.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005fe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FE8 | 5480 bytes |
SHA-256: 133a2cd40d680e652f41979af38b33a1c770af703c8dc0f400c54be8915b6191 |
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font_01_sfnt_off0000728e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x728E | 10388 bytes |
SHA-256: 2106597a3d2f3aa33c29daa033dd1703184929c5698230d9d2aeb09603b9ecab |
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font_02_sfnt_off000095eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95EB | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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