MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'pdf annotation app free' and a URL that aligns with the malicious redirector heuristic. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt to drive traffic to malicious sites.
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=pdf+annotation+app+free
- http://kewiposoz.2cvtv.co.uk/uploads/1/3/2/6/132695742/mowibitadosid-bukadatikuve-fogid.pdf
- http://files.schecktech.com/uploads/1/3/1/3/131381910/wixakuzaguk.pdf
- http://files.algartforms.com/uploads/1/3/2/8/132814147/643358.pdf
- http://files.southseattleoto.com/uploads/1/3/2/6/132681556/1959933.pdf
- http://files.it.montebernardi.com/uploads/1/3/0/8/130814769/buvurozugi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdf
- https://cdn.shopify.com/s/files/1/0431/5552/1700/files/70594938096.pdf
- https://cdn.shopify.com/s/files/1/0431/0673/0138/files/zokagumawekujenenujiloke.pdf
- https://cdn.shopify.com/s/files/1/0431/5506/2938/files/59442843586.pdf
- https://cdn.shopify.com/s/files/1/0434/7016/0032/files/aloha_movie_script.pdf
- https://cdn.shopify.com/s/files/1/0431/8137/5648/files/data_mining_concepts_and_techniques_4th_edition.pdf
- https://cdn.shopify.com/s/files/1/0433/5452/1758/files/widuzeja.pdf
- https://cdn.shopify.com/s/files/1/0431/2979/8818/files/introducing_applied_linguistics_pit_corder.pdf
- https://cdn.shopify.com/s/files/1/0438/6711/1584/files/50417289035.pdf
- https://cdn.shopify.com/s/files/1/0432/3088/8094/files/kozirixexosi.pdf
- https://cdn.shopify.com/s/files/1/0434/7478/0312/files/22268472470.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_off000072dc.bin1b350f5c9ee67b91fcb52669e583764a88f1bfc058a2233a568f707ca6d3c205 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72DC | 4824 bytes |
font_01_sfnt_off00008356.bin899f2f762eec1ca8714821ff291bd40c8801bd37727e75c03218182847bdfc92 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8356 | 10748 bytes |
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