MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning model and heuristics as malicious due to containing a link farm of numerous external PDF files. One of these links, 'https://ttraff.cc/pify?keyword=a+startup+enxuta+livro+pdf', redirects to known malicious infrastructure, indicating a likely attempt to lure users to a harmful site. The document body itself is heavily obfuscated and appears to be generated content, further supporting a malicious intent.
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/pify?keyword=a+startup+enxuta+livro+pdf
- http://ginalitiw.thisquietsiege.net/uploads/1/3/1/4/131453329/funulukadegasu.pdf
- http://files.westboroserve.org/uploads/1/3/1/4/131407214/tedogisuba.pdf
- http://files.myactionfigurecustoms.com/uploads/1/3/0/7/130776298/kozudumipo_lejebu_winotijo.pdf
- http://files.hopespringchurch.org/uploads/1/3/0/7/130775431/a71c8ba.pdf
- https://cdn.shopify.com/s/files/1/0428/8849/5270/files/88160244001.pdf
- https://cdn.shopify.com/s/files/1/0436/6237/7113/files/75886489648.pdf
- https://cdn.shopify.com/s/files/1/0437/4393/6673/files/79853883630.pdf
- https://cdn.shopify.com/s/files/1/0433/4210/2679/files/gonijifaxofolizuma.pdf
- https://cdn.shopify.com/s/files/1/0435/0928/5024/files/steam_download_stats.pdf
- https://cdn.shopify.com/s/files/1/0431/1970/6273/files/kenutezefemofu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdf
- https://cdn.shopify.com/s/files/1/0433/4839/4143/files/xapinozipelade.pdf
- https://cdn.shopify.com/s/files/1/0440/2970/6390/files/lejap.pdf
- https://cdn.shopify.com/s/files/1/0433/9246/7109/files/76593553344.pdf
- https://cdn.shopify.com/s/files/1/0434/1707/5868/files/radolupobovusuwozezumov.pdf
- https://cdn.shopify.com/s/files/1/0434/0360/8214/files/98976468719.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_off00004767.bind2f9bc2f0e9ff23eeef9f0cca49f18804a2fa74eb2c9628ecfc93bbee4207e69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4767 | 5152 bytes |
font_01_sfnt_off00005905.bin442144f23f1d8c516a4b53a4471eab51e9519bc1ec473b1e0de80c17d91a5951 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5905 | 9608 bytes |
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