MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many of which point to domains associated with link farms and redirectors, indicating a phishing or malicious redirection attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=binomische+formeln+erkl%25C3%25A4rung+pdf, which is flagged as a malicious redirector. The document body, though partially corrupted, contains references to the same search term, suggesting a lure to attract users searching for educational material.
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=binomische+formeln+erkl%25C3%25A4rung+pdf In PDF document text
- http://files.jacobveritas.com/uploads/1/3/1/3/131383681/1cbe68daa9.pdfIn PDF document text
- http://files.tuning-my-heart.com/uploads/1/3/1/3/131398094/3841940.pdfIn PDF document text
- http://files.childsafechildproofing.com/uploads/1/3/1/0/131071056/7011162.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/1/0438/8470/7992/files/deezloader_remix_4._2._2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6104/1559/files/cs_interview_cheat_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5804/4828/files/12051006676.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3915/2535/files/palugepenaker.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50398535586.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5217/0392/files/bozawosusanemimusebo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5897/0280/files/learning_spanish_words.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3862/2375/files/kadefuwirul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9770/2046/files/pekafafi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3953/8851/files/befalusabajam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8660/9573/files/45410400831.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1084/1000/files/tears_of_a_tiger_questions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7826/3718/files/fasefafeworenekux.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_off0000ab3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB3F | 5708 bytes |
SHA-256: 336743cbb26147a9e5146ab29f58748742ff318b1ad9c032ada2d1809f637e0b |
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font_01_sfnt_off0000be88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE88 | 16120 bytes |
SHA-256: 4fe6cbad274de88a7ac4517466f47131f6d70089fe23cce20b28d80a1d4db802 |
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font_02_sfnt_off0000f0a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A7 | 16196 bytes |
SHA-256: 41a1e3123543f644a57326630ff86f4f1f73d493934815d3d115716ffecdfc88 |
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