MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
This PDF file contains a malicious redirector link disguised as a "Latex tikz manual pdf". The ML classifier strongly flagged this PDF as malicious, and heuristic analysis identified it as a redirector and part of a link farm. The primary IOC is the malicious redirector URL, which is likely used to lead the user to a further malicious resource.
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=latex%20tikz%20manual%20pdf In PDF document text
- http://files.cninc.org/uploads/1/3/2/7/132740479/5324237.pdfIn PDF document text
- http://mifoburej.markesanbiblechurch.org/uploads/1/3/0/9/130968921/2288967.pdfIn PDF document text
- http://files.slukappasigma.com/uploads/1/3/1/3/131379183/9b494989b.pdfIn PDF document text
- http://fagul.itiskismet.com/uploads/1/3/1/1/131163590/kowulanakasov_kuditatikukupi_sowilomiz.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/1/0429/8581/6217/files/83038504398.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7220/0608/files/46575542516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3164/1762/files/xikusapupakakuzunap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9357/3284/files/topixomi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7978/5891/files/free_printable_phonics_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6645/6224/files/mathematics_of_finance_eighth_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1914/9216/files/riworigasilixiza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6459/7397/files/it-_201_2017.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1120/1435/files/76770537538.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7740/2778/files/senelejisorato.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1243/1776/files/sumara.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3945/7431/files/12662780681.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8835/4207/files/fuloluluzi.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_off0000747d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x747D | 5036 bytes |
SHA-256: b92f9de6d3665e82b15c3af602a46205d752a8049f1d0edbb5def656749a98f9 |
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font_01_sfnt_off000085a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85A4 | 13656 bytes |
SHA-256: 73a12547550cc5519e55e4bdeb3553444e2c065640370321ce7bea62d5fd754e |
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font_02_sfnt_off0000b1e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1E9 | 16116 bytes |
SHA-256: 2650953734bc47387e7657ecfda98388c46aab4f6ce1b70d6c4123b7a8b84dab |
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