MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'simplifying algebraic equations pdf' and the malicious URL. The primary attack vector appears to be a lure to a malicious redirector, likely for further payload delivery or phishing.
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=simplifying+algebraic+equations+pdf In PDF document text
- http://piwewi.keithdeininger.com/uploads/1/3/1/0/131070722/5367980.pdfIn PDF document text
- http://files.belarte-ardeco.com/uploads/1/3/1/8/131857580/8443082.pdfIn PDF document text
- http://files.carsonvalleycommunityfoodcloset.org/uploads/1/3/1/4/131408024/1172670.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/1/0434/7556/6752/files/ct_bill_of_sale.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5290/0250/files/17106305323.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9770/8957/files/vavesa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6776/7970/files/77809157295.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1776/2973/files/cells_and_tissues_chapter_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4100/5480/files/xumemesewugujaroruzuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7755/8681/files/mufaforupokufuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8100/7255/files/jeraxagedoguxupefesosuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0576/2974/files/48127068026.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5391/6053/files/25503236852.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5329/2440/files/47764780332.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9993/9235/files/jobab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3803/1518/files/juwurigabux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1391/5303/files/nonoloxabemarulogulenijol.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_off000065d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65D9 | 5944 bytes |
SHA-256: 2c2220d9044d1ba1b9b820dbd6bb74067adf2d18e5b8e8e219a55d5ca23e896e |
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font_01_sfnt_off000079f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79F7 | 14236 bytes |
SHA-256: 16544f1dd16d73cfe9270ac6e5d9cfb3bd5ef3a7826ca09a2ad1dd3b564dfff4 |
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font_02_sfnt_off0000a813.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA813 | 16080 bytes |
SHA-256: ae4c1039909c6b18400a693790947520403f0a9c3cdc5bdc37254682f4165006 |
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