MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to malicious infrastructure, disguised as a worksheet answer. The document body is heavily obfuscated, but the presence of numerous external PDF links suggests a link farm or redirection tactic. The primary malicious URL identified is https://ttraff.cc/wb?keyword=calculating%20gravitational%20field%20strength%20worksheet%20answers.
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/wb?keyword=calculating%20gravitational%20field%20strength%20worksheet%20answers In PDF document text
- http://files.zenmethodhuntsville.com/uploads/1/3/1/3/131397938/zubuxisewizoles-fawufovis.pdfIn PDF document text
- http://files.free2code-initiative.eu/uploads/1/3/1/4/131407010/b019c.pdfIn PDF document text
- http://files.jleefmusic.com/uploads/1/3/1/6/131606631/fb24f6eee24411.pdfIn PDF document text
- http://files.ge-solutions.ca/uploads/1/3/1/3/131378899/4ade9848b2320be.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://vavokoze.files.wordpress.com/2020/06/xuvifawavozojinomuvob.pdfIn PDF document text
- https://vugifiwa.files.wordpress.com/2020/07/39355670648.pdfIn PDF document text
- https://gukiber.files.wordpress.com/2020/07/pibegakijufanixuvidu.pdfIn PDF document text
- https://jijafozivofi.files.wordpress.com/2020/06/ripafakepatatumuwixer.pdfIn PDF document text
- https://ribodijexob.files.wordpress.com/2020/07/sonupax.pdfIn PDF document text
- https://dazixapuj.files.wordpress.com/2020/06/jagoguzavigosowaxutosale.pdfIn PDF document text
- https://riwozuxel.files.wordpress.com/2020/06/49448317748.pdfIn PDF document text
- https://tidokagajiz.files.wordpress.com/2020/07/biduvasizubamumexapiji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1204/6491/files/gujogigotikop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peposorutap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/51220103530.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81159011373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1555/2674/files/vetav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8800/2710/files/73775609458.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7977/8979/files/pevivugisakawig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2937/2832/files/subuf.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005547.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5547 | 5404 bytes |
SHA-256: ac70ce0455cf35ccab218a483b0bd2cff394692d7fb4b47770ef316809de7981 |
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font_01_sfnt_off000067b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67B4 | 8700 bytes |
SHA-256: eae21c127fddf62c61897b9821b9994c99c12db2655a2e96680819789d9540ad |
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