MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'book cover maker free for pc' and the malicious URL, suggesting a lure. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves redirecting the user to malicious infrastructure under the guise of a useful tool.
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.ru/pify?keyword=book+cover+maker+free++for+pc In PDF document text
- http://files.stjohnsmtpleasantmi.com/uploads/1/3/0/7/130739369/fa7a6308f.pdfIn PDF document text
- http://fefol.singsingprisonmuseum.org/uploads/1/3/1/4/131437296/jetife.pdfIn PDF document text
- http://baxolimis.opalandplum.com/uploads/1/3/1/4/131407558/nobenevazofi-ziladerelirumer.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/1/0431/4651/0504/files/kimepodedilijefikojudo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8978/8069/files/difference_between_assembly_language_and_machine_language.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3196/2535/files/flask_of_oil_wow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fadanamimurusekebunom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7572/3673/files/after_effects_free_cs6.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4153/7696/files/cbse_class_8_maths_rational_numbers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2172/8930/files/administrao_pblica_patrimonialista_burocrtica_e_gerencial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3134/7868/files/40866738216.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8118/8003/files/37075665518.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61A5 | 6812 bytes |
SHA-256: ca24bdafb8bbb869cbf463ec553f7ebe8fac9d92b2ff95474d77e3f511273adc |
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font_01_sfnt_off000072d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72D9 | 5124 bytes |
SHA-256: dda1852f481d5c913f2cd8802edf45aa012acb8950bd1e089f5826429668c36d |
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font_02_sfnt_off00008433.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8433 | 2896 bytes |
SHA-256: f2cc2edb54fdd6bf965a42223c4a16a28e5f5e3db07a758fd338dca7256dec9c |
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font_03_sfnt_off00009038.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9038 | 11224 bytes |
SHA-256: e30a8e2ed5904ad5920652e8d013d74414e9276ba9e11c1b769c44748c032e35 |
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