MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document employs a common SEO-based lure, masquerading as a solution manual to entice users to click on links. The primary link redirects through 'ttraff.com', a known malicious redirector, likely leading to the download of a second-stage payload. The document also contains a large number of links to other PDFs hosted on Shopify, forming a link farm, which is a common tactic for SEO manipulation and distributing malicious content.
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=engineering+vibration+4th+edition+solution+manual In PDF document text
- http://files.rolfkrahnert.com/uploads/1/3/0/7/130775806/4489846.pdfIn PDF document text
- http://files.americanbusinessmachines.net/uploads/1/3/2/6/132680994/ac90920224f.pdfIn PDF document text
- http://files.basementstopleak.com/uploads/1/3/0/7/130740142/7213479.pdfIn PDF document text
- http://files.sexhealthwellness.com/uploads/1/3/2/8/132814898/sedav_lebanuzuxipud.pdfIn PDF document text
- http://files.charlotterodenberg.com/uploads/1/3/0/7/130775551/tumopef-koxisa.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0431/7757/4551/files/30030439441.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6963/5734/files/41721271932.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6871/8242/files/39779075692.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7967/0689/files/23331506033.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7739/3815/files/6557140967.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3161/6923/files/35930609388.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9440/8352/files/dimukipomab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7267/4210/files/lumexuwalix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3106/files/semiwudix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2732/4310/files/9218768217.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1690/3080/files/mp3_rocket_old_versions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4645/8776/files/13560406246.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5573/5193/files/81397379021.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000737b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x737B | 1768 bytes |
SHA-256: 7b9c1ad248dcaef01c7adb4df71c22141da68cde87cc5ccff7cadb2d821898f4 |
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font_01_sfnt_off00007c21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C21 | 5484 bytes |
SHA-256: b6e2cc0d84305026556426f06b72a9ed50625fd240bb228c9631a55abcdbf59b |
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font_02_sfnt_off00008eac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EAC | 10772 bytes |
SHA-256: 24a89884f0c8626d8e060634eadba498e21e6bbf78edea88c0838299c0f23305 |
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font_03_sfnt_off0000b394.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB394 | 16376 bytes |
SHA-256: 3be7dccdfc6b00c89d054627a83584a7f927f450c9e6be5692b48c67a1390cb6 |
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