MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-in
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=rechtschreibung+%25C3%25BCbungen+pdf'. The document body itself is heavily obfuscated and appears to contain a mix of text and binary data, but the presence of numerous URLs, including the malicious redirector, strongly suggests a phishing or malicious redirection attempt. The ML classifier also flagged this PDF with high confidence.
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/pify?keyword=rechtschreibung+%25C3%25BCbungen+pdf In PDF document text
- http://files.mhcgb.co.uk/uploads/1/3/1/4/131452735/4396136.pdfIn PDF document text
- http://files.davemcdermand.com/uploads/1/3/2/6/132695361/faxevedepu.pdfIn PDF document text
- http://files.lecharmantarts.com/uploads/1/3/0/7/130738799/xifoso-jokajej-bajopawejut-tolefev.pdfIn PDF document text
- http://files.carolynnason.com/uploads/1/3/1/0/131070051/koxuwis-duwun.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/1/0431/6626/9600/files/engineering_economic_analysis_12th_edition_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0015/8632/files/96781080169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0379/7913/files/jivanujosedimerubozagoxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1290/7423/files/fadupopusavelozesoraxadi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7082/5382/files/the_holder_of_a_promotional_permit_may.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5721/5648/files/25493339031.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9451/5614/files/45508285537.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6059/1776/files/71331560631.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5479/1832/files/lava_uke_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5296/6812/files/tosajeravuvakomovume.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4715/7911/files/sotajasipu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3764/6245/files/sevujemo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8330/8962/files/xolerupejokipifebojuxane.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006cec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CEC | 5444 bytes |
SHA-256: cb9125e2c9423a4fe90d40d2bb107eb9efb5d08ec9cf6845f29fdccab79198ea |
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font_01_sfnt_off00007f2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F2A | 14624 bytes |
SHA-256: c4b8d89b78e8669b42375276f5c3e52936c14a38f8c90ecea0a6eb89b5960d7c |
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