MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=sqlite+browser+windows'. This link is presented within the document body, likely as a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.
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=sqlite+browser+windows In PDF document text
- http://lefupel.mindsets.net/uploads/1/3/1/1/131164572/5961620.pdfIn PDF document text
- http://files.carolgrice-curran.com/uploads/1/3/1/4/131407089/f46e45419816.pdfIn PDF document text
- http://files.uniqueaudioconcept.com/uploads/1/3/2/6/132682802/dfae6d5c4.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/1/0434/5066/3062/files/vojodovawup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8942/8637/files/anita_blake_micah.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6700/6364/files/vampire_hunter_d_1985.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5842/files/zoxopulutovolemimur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5935/5558/files/gagivabaneg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9160/7190/files/60478368433.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2729/1544/files/60267759601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7780/3931/files/statistical_significance_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/33024546219.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5821/7631/files/bivoputosej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/8430/3775/files/72105464049.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0185/6668/files/jedzenie_po_angielsku_wiczenia_dla_dzieci.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_off00007a53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A53 | 5068 bytes |
SHA-256: c28ec00116f01b1eae1f7bb60f8bfeef059c0dddfb1d116a373ad12921afabc8 |
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font_01_sfnt_off00008baa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BAA | 10964 bytes |
SHA-256: 1fd30803a44675e670812f9ad97eeefc8b1668dacd38b12d25a34dfcc04afa1f |
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font_02_sfnt_off0000b0eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0EB | 16352 bytes |
SHA-256: a235935b7da1a3e0dfb4386fa22d70075346861adeac55da3f8f322ddd140fe5 |
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