MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded URLs, including a primary malicious redirector at `https://ttraff.cc/wb?keyword=classification%20of%20bacteria%20bergey's%20manual`. This URL is likely used to deliver a secondary payload or redirect the user to a phishing site. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=classification%20of%20bacteria%20bergey
- http://files.drydesign.co.uk/uploads/1/3/1/8/131871433/5679692.pdf
- http://files.paulyeonlee.com/uploads/1/3/0/9/130968993/pelina.pdf
- http://files.edinburghacupuncture.com/uploads/1/3/0/8/130814529/tanusavovog-maromojeneximo-duxafigezomu.pdf
- http://files.emuskmedia.com/uploads/1/3/0/7/130738614/873b890a83.pdf
- https://cdn.shopify.com/s/files/1/0435/9615/2995/files/fizivudivopu.pdf
- https://cdn.shopify.com/s/files/1/0439/0433/6040/files/82587034802.pdf
- https://cdn.shopify.com/s/files/1/0432/0913/0143/files/amazfit_bip_user_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/1571/6513/files/7858572551.pdf
- https://cdn.shopify.com/s/files/1/0433/3902/2485/files/jelajolulovozug.pdf
- https://cdn.shopify.com/s/files/1/0433/9521/9623/files/jobepu.pdf
- https://cdn.shopify.com/s/files/1/0432/8800/2710/files/1605494865.pdf
- https://cdn.shopify.com/s/files/1/0440/9622/5432/files/bash_on_windows.pdf
- https://cdn.shopify.com/s/files/1/0429/1559/4399/files/aiims_assertion_reason_book_download.pdf
- https://cdn.shopify.com/s/files/1/0430/3906/4225/files/79885741287.pdf
- https://cdn.shopify.com/s/files/1/0431/7573/9553/files/guditoxivelifox.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005de6.binfd2f59e82f044f08d93deb97240a0bfd22fe8241c58ebb58fad815a23ac96bb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DE6 | 5384 bytes |
font_01_sfnt_off0000702a.bine0c5d9560df73a39b867b8c8825fb37aab43e1fa8e4f641735cdc46c1f06fce6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x702A | 9908 bytes |
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