MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by an ML classifier and heuristics indicating it contains a malicious redirector link. The document body, though obfuscated, contains text related to probability distributions and embedded URLs, suggesting a lure to a link farm. The primary redirector URL is https://ttraff.ru/pify?keyword=probability+distribution+binomial+plots+calculates+the+pdf+and+cdf, which likely leads to further malicious content or phishing attempts.
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.ru/pify?keyword=probability+distribution+binomial+plots+calculates+the+pdf+and+cdf In PDF document text
- http://files.thesilkfamilyproject.com/uploads/1/3/1/4/131437740/livig.pdfIn PDF document text
- http://files.lisadeakins.com/uploads/1/3/1/3/131398094/vusuza-dazumizeteje-sufoko.pdfIn PDF document text
- http://files.trumpsgreatamericafacts.com/uploads/1/3/1/3/131384333/41351b6e.pdfIn PDF document text
- http://files.skywaterlabradors.com/uploads/1/3/0/7/130775866/zukavodulama_rusifixazimos_lurabo.pdfIn PDF document text
- http://files.expertcharlottelocksmith.com/uploads/1/3/0/7/130738548/eb75a35e8b44.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/1773/2249/files/boeing_787_cockpit_layout.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2634/1272/files/82607859735.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6256/5795/files/retopabijakukif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1026/9082/files/nibetajidajageseruzakolud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4438/6454/files/18775211387.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1218/6531/files/76530646779.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xefafozerokadugatevaru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2720/8091/files/scarlett_2i4_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7007/0687/files/backyard_baseball_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4948/3426/files/83042036933.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0477/3031/files/jusimiruba.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000713e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x713E | 5520 bytes |
SHA-256: 679b3de6e82cb3aae2f51fe0d1c17f6afcc02ec96f384fe8d29ce432b2de1d1e |
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font_01_sfnt_off000083c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83C6 | 10408 bytes |
SHA-256: d197c641d06403f39264dbaefc1fe87254e7a6ceb98ef0f63c5f599149b13efc |
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font_02_sfnt_off0000a7b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA7B1 | 16084 bytes |
SHA-256: f6dd43097ff77a7644066d793246590a76b2fb03a803bff94e9fefcac70f68f1 |
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font_03_sfnt_off0000bc5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC5E | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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