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 the URL 'https://ttraff.cc/pify?keyword=genetics+book+by+pk+gupta+pdf', suggesting a lure to download a genetics book PDF. The presence of multiple external PDF links, including those hosted on Shopify, indicates a link farm strategy to improve search engine ranking and distribute malicious content. No scripts were extracted from this sample.
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.cc/pify?keyword=genetics+book+by+pk+gupta+pdf In PDF document text
- http://files.funelteacher.com/uploads/1/3/1/0/131070866/bavup.pdfIn PDF document text
- http://files.shaluksgardensolutions.com/uploads/1/3/1/3/131379085/3375471.pdfIn PDF document text
- http://files.explorebeyondborders.com/uploads/1/3/0/7/130776607/39824de6d0d1.pdfIn PDF document text
- http://files.raphaelschwartzman.com/uploads/1/3/1/3/131380263/c2055e13f1cfc54.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/1/0428/2246/7750/files/77162061371.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9235/2931/files/apoptosis_in_cancer_cells.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1744/4264/files/g_shock_ga_100_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3041/2450/files/simurafopunewewufi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1570/8577/files/15831263415.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9764/4449/files/famekajofulekosubokuguwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4903/3627/files/55241932017.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1537/1932/files/55671300674.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8856/6677/files/51452569326.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0378/9991/files/moneka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9334/3899/files/vodorelizoruso.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004bbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4BBD | 5532 bytes |
SHA-256: e6389ce7b7022a390ff015668eab235259d5fdf1efef4eb275b7d942dde69d6a |
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font_01_sfnt_off00005eb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EB5 | 9916 bytes |
SHA-256: 77d89c949e930af1773944f465df72653c0ce254a5cf72e03c835f46be9ffeee |
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font_02_sfnt_off000080db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80DB | 16164 bytes |
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8 |
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