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 critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though partially corrupted, includes text suggesting it is a study guide, which is likely a lure. The presence of many external PDF links, some pointing to Shopify domains, indicates a potential SEO poisoning or link farm strategy to distribute malicious content.
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=cambridge+igcse+computer+science+study+and+revision+guide+pdf
- http://files.fullpotentialfitness.net/uploads/1/3/2/6/132695572/wawisimabipudiz.pdf
- http://files.hemspase.com/uploads/1/3/2/7/132740805/6c99242c5d670b.pdf
- http://files.heathermclaurinart.com/uploads/1/3/1/4/131408432/kusuwojibisi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botezosural.pdf
- https://cdn.shopify.com/s/files/1/0432/8577/4502/files/cpu_speed_test.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977390730.pdf
- https://cdn.shopify.com/s/files/1/0431/6836/6760/files/nunefodolojefetuxid.pdf
- https://cdn.shopify.com/s/files/1/0433/9970/8821/files/nidafutajodunemerisap.pdf
- https://cdn.shopify.com/s/files/1/0429/7365/9292/files/53514681214.pdf
- https://cdn.shopify.com/s/files/1/0430/4420/8797/files/pixutojekepapig.pdf
- https://cdn.shopify.com/s/files/1/0434/6891/4838/files/how_to_check_ios_version.pdf
- https://cdn.shopify.com/s/files/1/0432/9452/3552/files/rca_digital_tv_converter.pdf
- https://cdn.shopify.com/s/files/1/0428/9832/5663/files/72734857571.pdf
- https://cdn.shopify.com/s/files/1/0430/4814/0949/files/51579140219.pdf
- https://cdn.shopify.com/s/files/1/0433/7752/4888/files/kesewox.pdf
- https://cdn.shopify.com/s/files/1/0427/9799/0055/files/sepufad.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_off000047f1.binbcc9bbc6439d500ca89c1117a4ea9b8f7a0b4c8988a83d0281fc7890cb98c2cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47F1 | 5648 bytes |
font_01_sfnt_off00005b1b.bin76428c03c47dd541e5660bfd08e2f0d55a0e2e415f3a92392f133b176db9ad11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B1B | 10104 bytes |
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