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, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains a reconstructed URL that matches the malicious redirector. Additionally, a large number of external PDF links were found, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the true malicious destination.
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=quadratische+gleichungen+l%25C3%25B6sen+aufgaben+mit+l%25C3%25B6sungen+pdf In PDF document text
- http://files.taupobiblechurch.org.nz/uploads/1/3/0/8/130874097/8fe4cde900f4.pdfIn PDF document text
- http://files.seo-beastmode.com/uploads/1/3/1/4/131437822/a17469d.pdfIn PDF document text
- http://files.tangonegrofilm.com/uploads/1/3/0/8/130814475/mezepi_xazeruwilede_woxunigitugugi.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/1/0438/4315/8166/files/juroxabejenak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6671/9385/files/15037623201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6579/4969/files/gefizidijenudumifowidux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8749/5321/files/92724470136.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1787/1255/files/dauntless_jagged_spark_scale.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5528/4373/files/69787218337.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7243/7910/files/gizad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0990/8642/files/17846975895.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/zalulotibifotan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4248/5910/files/62956237091.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7005/4805/files/bubaron.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8030/3270/files/adjectives_worksheets_for_grade_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9038/5821/files/excel_download_for_mac.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_off00006f99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F99 | 5908 bytes |
SHA-256: f1c032e475fa149646a5c89cd92ef4c1dd214f9189fd66c61d43a4614b60d984 |
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font_01_sfnt_off00008346.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8346 | 11584 bytes |
SHA-256: 4efbbdf883079e543598b8d7e3051b70aa10a3aee888502e3d9a9577106fbc1c |
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font_02_sfnt_off0000a971.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA971 | 16088 bytes |
SHA-256: fff8b70d67420864e2a263fdbbaad35efae781e73a516d3cf38207748e8715b5 |
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