MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.cc/pify?keyword=barracuda+firewall+admin+guide, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to "Barracuda firewall admin guide" and the URL, suggesting a social engineering lure to redirect users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.
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=barracuda+firewall+admin+guide In PDF document text
- http://files.instep360.org/uploads/1/3/0/7/130740490/jipulisifa_pisos_baripanozeb.pdfIn PDF document text
- http://files.rawbellionjuice.com/uploads/1/3/0/7/130776149/rewowumobodukuz-mavuxepize-visubazo.pdfIn PDF document text
- http://files.jotuncap.com/uploads/1/3/2/6/132695388/milufiluxejolor_tugudarosawidi.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/1/0438/9978/1275/files/11949880750.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2644/6496/files/67815863472.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5840/5271/files/46767328540.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6457/3593/files/8346689005.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9496/6429/files/begebulivepijupadi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/2945/7064/files/the_v_games.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6155/7913/files/xivusetaxujiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6410/5886/files/sivomexipavisejopupaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6183/7981/files/catering_service_project.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1641/9488/files/xujudamusube.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5393/0901/files/topojojasutakiziwajebit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/0108/8921/files/femutiwitetoritaboposofaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0336/2973/files/37565380699.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7215/0947/files/zoneseruvetelubuwab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6975/0940/files/eagle_scout_letter_of_ambition.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 |
|---|---|---|---|
stream_005_off0000adaf.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xADAF | 21180 bytes |
SHA-256: 3c7f12e20e3319f1ceea95c2490d03f348a9c35ea1c2f84d8f9133b6035774f3 |
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font_00_sfnt_off000076c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76C2 | 5304 bytes |
SHA-256: 537bff2a50d63f0a3e92bd840e04315bb322e37c978adada544e8507b61c6758 |
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font_01_sfnt_off000088c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88C8 | 10788 bytes |
SHA-256: 19497a75e04ac8baeb83fa58c3a70acee6a8e04050f5a58fd1d1a7abca8a9f0a |
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