MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure for an 'Openstack tutorial'. The presence of numerous external PDF links, many hosted on seemingly unrelated domains, further supports a link farm or SEO poisoning tactic. The primary malicious URL identified is https://ttraff.cc/wb?keyword=openstack%20tutorial%20for%20beginners%20pdf, which is likely used to redirect users to a final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/wb?keyword=openstack%20tutorial%20for%20beginners%20pdf In PDF document text
- http://files.morganvalleycandles.com/uploads/1/3/1/1/131163846/6676581.pdfIn PDF document text
- http://files.robertoster.com.au/uploads/1/3/1/4/131407183/a0754241267445.pdfIn PDF document text
- http://files.nadinedarling.com/uploads/1/3/1/3/131382470/fokupafafu-ladalonigaze-jasogul-jugux.pdfIn PDF document text
- http://files.franklinyouthfootball.org/uploads/1/3/0/8/130874350/gadenelokasu_tuxuka.pdfIn PDF document text
- http://files.shoesheartart.com/uploads/1/3/1/4/131436980/lukotewigofojaj-sodafulatezora-gezuxamuvagife.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/1/0440/3052/5590/files/nomenclatura_dos_alcanos_ramificados.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3355/9203/files/43076637374.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0595/9574/files/tubuxisitelusudibudutido.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1317/6469/files/biodata_format_for_teacher_job_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6893/8658/files/85466552649.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1828/0357/files/89948060885.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3845/7508/files/vakukod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1760/8090/files/cahier_des_charges_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2308/8290/files/juxetekofujufut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7551/8107/files/gavixovaxadujoluzip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1722/3840/files/luxati.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_off00009caa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CAA | 5436 bytes |
SHA-256: 910f701924417088a94e0cd36dd6d9d006a2474af1e80754535493a99a2fe5cc |
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font_01_sfnt_off0000af2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF2A | 10344 bytes |
SHA-256: 5df1da971e0abf158ae2d8be1bba00788b0be374b51ea6d6885a3c95bb3be769 |
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font_02_sfnt_off0000d28b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD28B | 4324 bytes |
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c |
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