MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics, suggesting a lure related to 'Archimedes principle formula pdf'. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, likely to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.
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=archimedes+principle+formula+pdf In PDF document text
- http://files.narinesookram.com/uploads/1/3/0/8/130874038/1564370.pdfIn PDF document text
- http://vemateza.aspe-dc.org/uploads/1/3/1/4/131437987/8162349.pdfIn PDF document text
- http://files.bickleighvalevillage.com.au/uploads/1/3/0/9/130969054/99caa2.pdfIn PDF document text
- http://files.andrewwarnerdogtraining.com/uploads/1/3/1/0/131070846/fatawu_xapub.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/1/0431/8245/7000/files/litajokeguxomimis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1495/4908/files/89445956138.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5793/8581/files/xijomojepufobeto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8746/9469/files/50301010305.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4046/3255/files/48157794848.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2825/0781/files/english_speaking_course_free_download_in_urdu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2926/5564/files/jamulupadobejinipujuzibud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5907/5477/files/nanadebekole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6924/2534/files/autocad_2015_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2186/7930/files/gifamupibide.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_off000076d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76D3 | 5384 bytes |
SHA-256: ed3a9cdea74e0e47811a695dcdb13d2464910fcb435559a4e289531f0b98634a |
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font_01_sfnt_off000088fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88FC | 11752 bytes |
SHA-256: 0eeb4c8346fa33fc3f23d2ae9f39137e1ef422ecd364959b5a401e32d678fcb8 |
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font_02_sfnt_off0000af9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF9B | 16088 bytes |
SHA-256: ccd0ea095085b9379100d4de0d13d045157d8501f46cd3db2ef5c00475687e02 |
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