MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This link is presented within the document body, disguised as a download for 'Brunner and Suddarth 14th edition pdf download'. The PDF also contains a large number of external links, many pointing to Shopify domains, likely part of an SEO link farm to improve search engine ranking for malicious content. The presence of a visual download button further supports the lure.
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.cc/pify?keyword=brunner+and+suddarth+14th+edition+pdf+download In PDF document text
- http://files.mikeflament.com/uploads/1/3/0/8/130814644/fisakibutav_zewetezot_xolowujatikod_mumivuluj.pdfIn PDF document text
- http://files.zegermanmarkt.com/uploads/1/3/1/1/131164295/nubutelorewazenuf.pdfIn PDF document text
- http://xasevep.drewwatsonpups.com/uploads/1/3/1/3/131380213/3657916.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/1/0431/1243/1776/files/advanced_computer_architecture_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2808/5912/files/dupuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2476/1507/files/78791498037.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tutokufumetuja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2100/7005/files/d_d_human_subraces.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6392/5149/files/65998927601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7612/2779/files/65051009408.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7757/4557/files/cerebral_palsy_gait.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5349/5958/files/11612308881.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4525/6352/files/2311923689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9411/3446/files/decimal_to_hex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4950/0328/files/35808114045.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7045/5965/files/zedena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4782/2236/files/pivux.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000753d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x753D | 5292 bytes |
SHA-256: 26ce1ed497fc06e14fa7826f472fd476d25b4964fce0066bd549ca0faaf8212f |
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font_01_sfnt_off00008749.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8749 | 1800 bytes |
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d |
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font_02_sfnt_off00008fd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FD7 | 10416 bytes |
SHA-256: 7f5881c7a9558474d36e703f2c6b7d287173a188f91e27cd5d4be7e7de4f3202 |
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font_03_sfnt_off0000b365.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB365 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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