MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm for SEO manipulation. One prominent link directs to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'maths sums for class 6 with answers', likely a lure to disguise the malicious intent. 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=maths+sums+for+class+6+with+answers
- http://tuxeru.nolanlee.com/uploads/1/3/0/8/130813528/745e1f4a9eeb5.pdf
- http://files.lennoxwarner.com/uploads/1/3/0/7/130739664/tazipasap.pdf
- http://rilofewu.rotaryclubnorwich.co.uk/uploads/1/3/0/8/130874493/jerevu.pdf
- http://ledoxa.theautistix.com/uploads/1/3/1/3/131383483/jorakos_rubijebolowetes.pdf
- http://negegosiw.rlasfoundation.org/uploads/1/3/2/6/132681579/pexuvub.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://fedorahosted.org/lohit
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdf
- https://cdn.shopify.com/s/files/1/0430/8955/9705/files/bafimetizipuxuwaxowif.pdf
- https://cdn.shopify.com/s/files/1/0439/3864/4123/files/capacitor_code_calculator_pdf.pdf
- https://cdn.shopify.com/s/files/1/0430/2965/9805/files/22422144931.pdf
- https://cdn.shopify.com/s/files/1/0432/9072/2469/files/22732748746.pdf
- https://cdn.shopify.com/s/files/1/0431/6676/1120/files/77071209978.pdf
- https://cdn.shopify.com/s/files/1/0433/9276/2006/files/10067103789.pdf
- https://cdn.shopify.com/s/files/1/0437/6500/6494/files/cdc_bmi_chart.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/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000075a0.bina7c9e6807f295ec28d6af0f04aece06143d8e2d01e8fd3ea3c717d9d2d8df87a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75A0 | 5372 bytes |
font_01_sfnt_off000087d3.bin2f31c84f432a3171a3341daef9b8648451500df31dba62405053836da796b05c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87D3 | 10604 bytes |
font_02_sfnt_off0000ac19.binff9306ca545350d3faf4f5ddddfb5e4ab0b5dec2c943c3f7283d3548507ec380 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC19 | 4176 bytes |
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