MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link pointing to 'ttraff.com', which is a critical finding. Additionally, it features a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO manipulation or traffic redirection. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wb?keyword=plumbing%20system%20in%20building%20pdf', reinforcing the malicious redirector. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document may also attempt to trick users into installing remote support tools, though no specific script was found to confirm this.
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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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.com/wb?keyword=plumbing%20system%20in%20building%20pdf In PDF document text
- http://files.usasportsassociation.com/uploads/1/3/0/8/130874326/2661878.pdfIn PDF document text
- http://files.slra.org/uploads/1/3/1/4/131454316/db2bd1a5b5f4a.pdfIn PDF document text
- http://dijere.berclairbaptist.org/uploads/1/3/0/8/130874493/5318722.pdfIn PDF document text
- http://dedodivu.fortschrittskolleg-replir.de/uploads/1/3/1/0/131069839/caead1653d1.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/1/0429/8545/5769/files/flawless_widescreen_kotor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6086/1845/files/gitot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3127/3365/files/gamizujilipe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3412/3160/files/71406050512.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8275/2935/files/3608425455.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9387/7145/files/basic_mathematical_formulas_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8976/4245/files/argumentative_and_persuasive_essay_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3152/6561/files/delete_watermark_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8774/9529/files/nopotimitejozuremu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2152/5407/files/armitron_pro_sport_watch_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4571/6129/files/41516485520.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_off00007bc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BC9 | 5296 bytes |
SHA-256: 257c2218b61af81882b40653329e4aceb22d6761078900441165791e2ed6fe33 |
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font_01_sfnt_off00008dc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DC0 | 9760 bytes |
SHA-256: de4ed7d522fb57f4e420939927626cae7e6deab977e0e7427b4c02bbba2f60b6 |
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