MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, a common tactic for link farms and redirectors. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=basic+vba+tutorial+excel+2020+pdf'. The document body, though heavily obfuscated, contains text related to 'basic vba tutorial excel 2020 pdf', suggesting a lure to disguise the malicious intent. The presence of multiple Shopify-hosted PDF links further indicates a link farm strategy.
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=basic+vba+tutorial+excel+2020+pdf In PDF document text
- http://files.ahandymommy.com/uploads/1/3/0/7/130775588/zobafufagula.pdfIn PDF document text
- http://files.hartfordpriest.com/uploads/1/3/2/6/132695651/wudufoxomuke-xotomagarowagix-vafofuketafe-xijadizizubefi.pdfIn PDF document text
- http://larasedu.saintsnetballclubgisborne.com/uploads/1/3/1/4/131438379/f59d2759710fd.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/1/0438/9067/1771/files/amadou_hampate_ba_livre.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2074/5893/files/fawowozuseluxubopenagexu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7944/1307/files/6973375131.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6812/9441/files/actos_administrativos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2019/7789/files/90904012375.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5214/6587/files/daguvutep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4903/3640/files/jizibubanixejufob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8114/5243/files/sosugiledezarogidikinov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0841/6168/files/church_street_blues_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5969/8077/files/4805977658.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2860038855.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6150/0309/files/darwin_theory.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006bc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BC0 | 5516 bytes |
SHA-256: 7abb50a771144f6206b5ada777bdea15afc857c97c6b41eebe2733d0ff79c211 |
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font_01_sfnt_off00007e91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E91 | 11696 bytes |
SHA-256: 53a297e4ff453804f44a3c906d580d41087616edf569e5a39149a36d4874cfd9 |
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font_02_sfnt_off0000a4e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4E1 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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