MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF contains a link farm and a redirector URL, indicating a malicious intent to direct users to harmful content. The document body, though partially corrupted, contains keywords related to 'calendario escolar' and the malicious URL, suggesting a lure to disguise the malicious redirection. The ML classifier strongly flagged this PDF as malicious.
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=calendario+escolar+valencia+2020+20+pdf
- http://files.crappymagic.com/uploads/1/3/1/6/131606677/1315914.pdf
- http://files.csidelivers.com/uploads/1/3/1/4/131437593/gadazakodi.pdf
- http://files.cartwheelfoundationintl.org/uploads/1/3/0/9/130969850/1136231.pdf
- http://files.gtc-elite.org/uploads/1/3/2/6/132682570/netefikuvuboz_fifajog_jubakafa.pdf
- https://cdn.shopify.com/s/files/1/0431/3110/9540/files/fovam.pdf
- https://cdn.shopify.com/s/files/1/0431/6617/1293/files/vejigebamabewekisuvol.pdf
- https://cdn.shopify.com/s/files/1/0432/9252/4700/files/93084192014.pdf
- https://cdn.shopify.com/s/files/1/0435/1026/8068/files/pagiwebijijixofulut.pdf
- https://cdn.shopify.com/s/files/1/0431/5676/6882/files/wubamurinowiri.pdf
- https://cdn.shopify.com/s/files/1/0434/4617/3852/files/31006215817.pdf
- https://cdn.shopify.com/s/files/1/0429/4184/1575/files/fobafiponapiwu.pdf
- https://cdn.shopify.com/s/files/1/0431/3799/0813/files/doi_file_sang_word.pdf
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/59038731149.pdf
- https://cdn.shopify.com/s/files/1/0436/7548/4313/files/68888571910.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_off00005ebc.bin6f7d810e138022837ebfdadd8578f8a3ade7fb01ae1026815ddc9e3e1768b572 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EBC | 5388 bytes |
font_01_sfnt_off00007126.bin369d049f1529c8ef1a44f73a99e44e09170a9e3f8dc5d40c797ea3d8ccee0e67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7126 | 11284 bytes |
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