MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a redirector, ttraff.com, which is flagged as malicious. This redirector likely leads to a further malicious payload or phishing page. The document body and embedded links suggest a lure related to 'English learning course book pdf', aiming to trick users into clicking the malicious link. The ML classifier strongly supports the malicious nature of this PDF.
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.com/pify?keyword=english+learning+course+book+pdf
- http://files.cheersfromthewasteland.com/uploads/1/3/1/3/131379552/fejegofar-kivapames.pdf
- http://files.michaelroll.net/uploads/1/3/0/8/130813992/lopiw_zevixulamarejas_tepodatarereku_xexewafapogeg.pdf
- http://files.uchytilandy.com/uploads/1/3/1/3/131383541/3005051.pdf
- https://cdn.shopify.com/s/files/1/0433/9925/0072/files/45570031417.pdf
- https://cdn.shopify.com/s/files/1/0439/6161/4494/files/affairscloud_monthly_free_download.pdf
- https://cdn.shopify.com/s/files/1/0433/3086/3259/files/87143568795.pdf
- https://cdn.shopify.com/s/files/1/0431/7849/2072/files/52865378535.pdf
- https://cdn.shopify.com/s/files/1/0431/9395/8560/files/nuwunozanetuta.pdf
- https://cdn.shopify.com/s/files/1/0430/2028/8153/files/newesumajidinaxalo.pdf
- https://cdn.shopify.com/s/files/1/0429/1792/0934/files/72330477044.pdf
- https://cdn.shopify.com/s/files/1/0432/5684/0350/files/62677768184.pdf
- https://cdn.shopify.com/s/files/1/0432/2826/6654/files/bulozigigazipekulaf.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7416/files/76915466193.pdf
- https://cdn.shopify.com/s/files/1/0430/6737/5770/files/4815550468.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_off00006d0a.bin3a16de97d3b9a960bca28133691f2175480c7e3035b550fb02e969de88c8b2b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D0A | 5580 bytes |
font_01_sfnt_off00008002.bina16b367c6df8fddea2778903f4262f23fb9b75945aae1f795bac5eb67061461f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8002 | 10376 bytes |
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