MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to a syllabus and the malicious URL. The presence of a call-to-action button lure further supports a phishing or redirection attempt. The primary malicious IOC is the redirector URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=rbse+12th+biology+syllabus+2020+pdf In PDF document text
- http://files.distinctiveautomotivesales.com/uploads/1/3/1/3/131382470/rizag.pdfIn PDF document text
- http://files.ketchikanwhales.com/uploads/1/3/1/1/131164250/551949.pdfIn PDF document text
- http://wijasoled.roadslaves.com/uploads/1/3/0/8/130874064/6636522.pdfIn PDF document text
- http://files.ellesartandjewels.ca/uploads/1/3/1/4/131455158/03aeed4d.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/1/0437/9957/6733/files/3042621242.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2964/0854/files/karemuzapuxavoger.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5904/3749/files/fobukumoke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5598/6326/files/adjective_and_adverbs_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/nepitezodefikasakorutit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35535883354.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4537/1549/files/wexug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7367/3118/files/81331614809.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1321/6168/files/82059335249.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2865/9870/files/21844875502.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1423/3000/files/59788795013.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90262961418.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_off0000660a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x660A | 5780 bytes |
SHA-256: 9aa4c4086cb0a6c0e56607345a8fb634fbf4ad7e392aab2eebf1aa4d85fb3336 |
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font_01_sfnt_off000079c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79C8 | 9920 bytes |
SHA-256: eb02197903f222b7a1124e2fb72c42989e9da4c06b5a1e15c9071bc742145fe1 |
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font_02_sfnt_off00009bfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BFA | 2924 bytes |
SHA-256: 0a19bde7dd71b42ad502443bbbe113791974edb2bf4100f03a99e8558393ac86 |
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