MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to a link farm designed to redirect users. One of the primary links leads to a known malicious redirector, 'ttraff.cc', which is likely intended to deliver a secondary payload or phish for credentials. The document body itself is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf.
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/wb?keyword=treatment%20pulmonary%20hypertension%20pdf In PDF document text
- http://files.mtviewcrc.org/uploads/1/3/1/8/131871515/dofebekuwosuxoka.pdfIn PDF document text
- http://files.medicinalthreads.com/uploads/1/3/1/4/131453136/041b67ba856.pdfIn PDF document text
- http://files.boondocksirishwolfhounds.com/uploads/1/3/1/3/131383826/8d21a64833d35.pdfIn PDF document text
- http://files.portagecentralexams.com/uploads/1/3/2/7/132740584/pisobujuzanekox.pdfIn PDF document text
- http://files.nowandzenyogawc.com/uploads/1/3/0/9/130969184/jirew.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/1/0429/1218/6531/files/19767627527.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7218161301.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2027/1264/files/kofisatovogopoki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49186839350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8183/2350/files/tuxafi.pdfIn PDF document text
- https://gazezoxasur.files.wordpress.com/2020/07/23150526140.pdfIn PDF document text
- https://zarulixapato.files.wordpress.com/2020/07/josigoboliditeze.pdfIn PDF document text
- https://pisurika.files.wordpress.com/2020/06/85071310813.pdfIn PDF document text
- https://nedigitupile.files.wordpress.com/2020/07/kiboxapovexofi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bepojarovizezeba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34993807018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xumilegimazuguvabunozanik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6790/0061/files/85464713136.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0592/6809/files/dapod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8674/1655/files/vupofoxepipexavuxagikazak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2160/6820/files/68655656477.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_off00009bbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BBD | 5212 bytes |
SHA-256: 83600304d02aae1cd5680532bc5cd6c3b4f8236dc5ca47381515fc6dd4e58de6 |
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font_01_sfnt_off0000ad44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD44 | 12308 bytes |
SHA-256: de533ebd150b8f917e495674ad31fcbe453b86beaeea6c479dad6a9b1f221eef |
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