MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with the primary one leading to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a book PDF, which is likely a lure. The presence of embedded URLs and the ML classifier's high confidence indicate malicious intent, likely related to SEO spam or phishing campaigns.
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.ru/pify?keyword=english+alphabet+writing+book+pdf
- http://files.sandytoessociety.org/uploads/1/3/2/7/132712127/83e28df9a.pdf
- http://files.theplaceofdreamers.com/uploads/1/3/2/8/132814166/pipel-sewowudin-runanedenovi.pdf
- http://files.nightoutowl.com/uploads/1/3/1/6/131606393/bivagelepokixas-zasetef.pdf
- http://files.shawtyreservices.com/uploads/1/3/2/6/132682134/47227e3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/0360/0283/files/vajawobibuwikawazun.pdf
- https://cdn.shopify.com/s/files/1/0428/4953/4111/files/72469471459.pdf
- https://cdn.shopify.com/s/files/1/0448/0227/7542/files/poruvofetibeteb.pdf
- https://cdn.shopify.com/s/files/1/0432/1676/5088/files/dawoko.pdf
- https://cdn.shopify.com/s/files/1/0437/1388/8405/files/miruxilesopovebotobetika.pdf
- https://cdn.shopify.com/s/files/1/0429/8699/5863/files/68705485636.pdf
- https://cdn.shopify.com/s/files/1/0433/7988/4186/files/fundamentals_of_analytical_chemistry.pdf
- https://cdn.shopify.com/s/files/1/0429/9417/2058/files/62734352965.pdf
- https://cdn.shopify.com/s/files/1/0429/4311/9527/files/kifomavidavut.pdf
- https://cdn.shopify.com/s/files/1/0428/6044/5855/files/34023555858.pdf
- https://cdn.shopify.com/s/files/1/0434/1510/9797/files/4086376531.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004f7a.bin21a694b911fc63b2e81c96ab3f81f09ddf14e028ea9e6e7bc0f845faf9593905 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F7A | 5556 bytes |
font_01_sfnt_off00006264.binc870e6b256feab65944d632e089a8e1931a52a079d2bad2f9bc6c05b225deb08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6264 | 9572 bytes |
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