MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded links, many pointing to external resources, with one critical link identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Pearson biology textbook online pdf' and a URL that is also flagged as a malicious redirector. This suggests a phishing or scam attempt, leveraging seemingly legitimate content to trick users into visiting malicious 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.com/pify?keyword=pearson+biology+textbook+online+pdf In PDF document text
- http://files.nzepiphytenetwork.org/uploads/1/3/1/4/131453455/2790285.pdfIn PDF document text
- http://files.fairmounthardwarelumber.com/uploads/1/3/1/0/131071289/5004344.pdfIn PDF document text
- http://files.ywamshipscctx.org/uploads/1/3/0/7/130776673/babax.pdfIn PDF document text
- http://files.studio135onlinestore.com/uploads/1/3/1/4/131452903/mivobedad.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/1/0436/9252/3675/files/poxolutiresakukipe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5216/3482/files/81948779770.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4643/6006/files/panojorevikokiwefusus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/medicinal_plants_in_tamilnadu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1627/3563/files/megekitibezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1925/5454/files/john_henry_newman_apologia_pro_vita_sua.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5222/6974/files/zimojazax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6208/3232/files/35282751070.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7387/2807/files/51616861596.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4027/6642/files/fifa_2015_soundtrack.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0940/1254/files/kojupibipulowa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1643/8438/files/karajejavazedu.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_off00005401.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5401 | 5372 bytes |
SHA-256: c6a95292ff86c1c93fa3a89e967453e9646729e3f675d2df97d09c792a7032c3 |
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font_01_sfnt_off0000665a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x665A | 10752 bytes |
SHA-256: 4f022431b36552c096f38c26c41b2a1d401737ca1a922db3e272f9c54de4d42a |
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font_02_sfnt_off00008ac1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AC1 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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