MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=bihar+board+intermediate+admit+card+2019', is designed to redirect users to malicious content. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which are hosted on Shopify. The primary malicious link is the most critical IOC.
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=bihar+board+intermediate+admit+card+2019 In PDF document text
- http://giserozu.mstorressocialstudies.com/uploads/1/3/2/7/132740505/932a2c3c.pdfIn PDF document text
- http://talefinij.sandiegobestpartyrentals.com/uploads/1/3/2/6/132695601/3c6d64b0752b7.pdfIn PDF document text
- http://files.robinsonauctionservice.com/uploads/1/3/1/1/131164251/taxesumipimanazi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/exclusive_breastfeeding_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6232/1571/files/98665187515.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6503/1321/files/94926532339.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7079/7462/files/arteriografia_coronaria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonamanasalusowalu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8131/0114/files/62760547176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4011/1782/files/14978245444.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2358/9788/files/vetavadugipujugo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mozesuseb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5815/1072/files/68263976179.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0004/5469/files/libro_quien_es_san_miguel_arcangel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/0981/9043/files/tobolafoxebuninugame.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9508/9559/files/39593240464.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_off000062bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62BF | 5640 bytes |
SHA-256: 20eef2ef2af9199f94bce7fbddad729d9a82b37fd5589fb959cddc3a0fb3bf3b |
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font_01_sfnt_off000075bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75BD | 13180 bytes |
SHA-256: 1aeca79f3d32c98eb538a9f43528afbe4bf68c1eb1ba7eb22c4a67df5722b74b |
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font_02_sfnt_off00009f8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F8D | 7428 bytes |
SHA-256: 2730a5e62ed11968948a7de30a5fbb4ab89a0aefa33bf2605b6f47ae7349a415 |
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