MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wb?keyword=interview%20questions%20and%20answers%20in%20english%20for%20experienced%20candidates%20pdf'. This indicates a social engineering lure, likely attempting to trick the user into visiting a malicious site by disguising it as relevant content. The file also exhibits characteristics of a link farm, with numerous embedded links, further supporting the malicious intent.
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.com/wb?keyword=interview%20questions%20and%20answers%20in%20english%20for%20experienced%20candidates%20pdf In PDF document text
- http://files.1orus.com/uploads/1/3/1/6/131637496/2b530bf9a165.pdfIn PDF document text
- http://files.ncbcda.com/uploads/1/3/2/3/132302816/642ee6e28948.pdfIn PDF document text
- http://files.freewalkingtoursbeirut.com/uploads/1/3/1/4/131437139/mumafinuxoforazutaj.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/1/0432/0008/6180/files/penanupa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9884/7894/files/zikubawid.pdfIn PDF document text
- https://nudademexu.files.wordpress.com/2020/07/60854649181.pdfIn PDF document text
- https://patepiborev.files.wordpress.com/2020/07/zevufiruzepavosasukulinul.pdfIn PDF document text
- https://zisagan.files.wordpress.com/2020/06/kozemamus.pdfIn PDF document text
- https://jilijufupe.files.wordpress.com/2020/06/19108155634.pdfIn PDF document text
- https://jifolidudoj.files.wordpress.com/2020/07/numiditadilozipajefaka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7089/7824/files/nurogij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5032/8486/files/tetat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2168/0283/files/dokugusoxusigagozivokeku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6929/3215/files/66458222325.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7233/1675/files/20607597071.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/88075317933.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8530/7808/files/zatofogedepugevapi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.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_off0000ae80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE80 | 5580 bytes |
SHA-256: f1815610d3d0d0f42376bb75e39e69d79323e7aa1aeffcc93820619822867bf9 |
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font_01_sfnt_off0000c185.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC185 | 10340 bytes |
SHA-256: 6da1b72cdee9aecb31d8e43c31194ae74cc0fca311ca5e14e21982e7048130a3 |
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