MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily corrupted, contains text related to 'collecting data worksheets for kindergarten', suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it's part of a link farm or redirection campaign.
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=collecting+data+worksheets+for+kindergarten
- http://files.meganlewis1illustrator.com/uploads/1/3/1/6/131636855/7307786.pdf
- http://files.margeryammon.com/uploads/1/3/1/6/131607467/47c00637c0.pdf
- http://files.fillingthekleinbottle.com/uploads/1/3/1/6/131606343/pigisedafino_rujubu_zizuluwubob_nitap.pdf
- https://cdn.shopify.com/s/files/1/0429/6943/2230/files/42122396353.pdf
- https://cdn.shopify.com/s/files/1/0430/0383/8615/files/biblia_reina_valera_online.pdf
- https://cdn.shopify.com/s/files/1/0432/1057/1940/files/nelisatomorulumogididuk.pdf
- https://cdn.shopify.com/s/files/1/0431/6787/5221/files/pearson_texas_chemistry_textbook.pdf
- https://cdn.shopify.com/s/files/1/0430/4253/7629/files/59280523300.pdf
- https://cdn.shopify.com/s/files/1/0438/2985/4368/files/xotaxuviselunisofusizunu.pdf
- https://cdn.shopify.com/s/files/1/0429/5216/3482/files/attribution_theory_psychology.pdf
- https://cdn.shopify.com/s/files/1/0432/9144/3364/files/41510564018.pdf
- https://cdn.shopify.com/s/files/1/0429/5147/5351/files/46136899675.pdf
- https://cdn.shopify.com/s/files/1/0434/8113/7316/files/z_for_zachariah.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_off000088de.binee1df1884c20abc427e5b4d66ba0ae2de56ad8389f1be5a82ccc5138802797fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88DE | 5344 bytes |
font_01_sfnt_off00009b0f.bin2ff645a0911d1cea66f2c507f7aee7a4baf6031c9a8c2ce03ad117a428869c8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B0F | 9928 bytes |
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