MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file contains numerous links, many pointing to a redirector service, and is flagged by ML classifiers as malicious. The document body, though obfuscated, contains text that suggests a fake CAPTCHA or human verification prompt, intended to trick the user into clicking the malicious link. The primary malicious URL identified is https://ttraff.com/pify?keyword=choke+em+out+pdf.
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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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/pify?keyword=choke+em+out+pdf In PDF document text
- http://files.sareslater.com/uploads/1/3/2/6/132695568/busazazoxup_retavi_bubab.pdfIn PDF document text
- http://files.wirraparinga.com/uploads/1/3/1/3/131380175/8233607.pdfIn PDF document text
- http://files.latifyahia.net/uploads/1/3/2/6/132682076/rofiba.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/1/0434/9257/3336/files/340352495.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0816/2981/files/datewagigimososemige.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2505/5389/files/gbatemp_wii_u.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5594/6647/files/walmart._capitalone._com_activate_l-_7683.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4991/7347/files/vikamujinawos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98629167596.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1927/0306/files/14889843114.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4442/0246/files/26835786381.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/kakozeta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9272/8226/files/80547808324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6782/4533/files/42046797356.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3785/7691/files/duwutexumanumuponotonetu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3397/7247/files/67749573444.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5107/3174/files/zipexulafa.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_off00006686.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6686 | 4580 bytes |
SHA-256: e90e1806a7dc001361531cbdc3fb8b4a43047651050637decda3cc240fd2cf22 |
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font_01_sfnt_off0000762c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x762C | 10608 bytes |
SHA-256: f82f600177d81bd1c6a3504b80972eb259753a4b1d4e23ef5232e94f8d400431 |
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font_02_sfnt_off00009a7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A7D | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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