MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier as malicious and contains a significant number of embedded links. One of these links, 'https://ttraff.ru/pify?keyword=br%25C3%25BCche+vergleichen+klasse+6+%25C3%25BCbungen+pdf', points to known malicious redirector infrastructure. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through a large number of seemingly benign links.
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=br%25C3%25BCche+vergleichen+klasse+6+%25C3%25BCbungen+pdf
- http://files.scottkaplanphd.com/uploads/1/3/1/4/131483110/3705741.pdf
- http://files.cninc.org/uploads/1/3/2/7/132740479/5324237.pdf
- http://files.simamartialarts.com/uploads/1/3/2/6/132681053/rigozipu.pdf
- https://cdn.shopify.com/s/files/1/0434/1543/7468/files/mavomumitaforal.pdf
- https://cdn.shopify.com/s/files/1/0431/5345/7320/files/jumixatobew.pdf
- https://cdn.shopify.com/s/files/1/0434/0203/5351/files/zozusuniwavaxiles.pdf
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/rpg_maker_mv_sprite_template.pdf
- https://cdn.shopify.com/s/files/1/0433/4842/6902/files/89945692056.pdf
- https://cdn.shopify.com/s/files/1/0435/1596/9688/files/60460205672.pdf
- https://cdn.shopify.com/s/files/1/0437/0805/5720/files/survey._foreseeresults._com_sprouts.pdf
- https://cdn.shopify.com/s/files/1/0433/7251/1386/files/35094366137.pdf
- https://cdn.shopify.com/s/files/1/0432/0867/1394/files/bogapedoreru.pdf
- https://cdn.shopify.com/s/files/1/0435/1908/2651/files/5427166460.pdf
- https://cdn.shopify.com/s/files/1/0428/8544/7833/files/85658891972.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_off000064a1.binbda220eac524829e72c98b38a63b7a8489ebf9663204c114aae24f766cff2a0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64A1 | 6004 bytes |
font_01_sfnt_off000078d9.bin2805c0c1800a621dbe9d07727c674bc61221d053d31a41fdb1548bd26d699fa1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78D9 | 11436 bytes |
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