MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to formatting an SD card, suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content or traffic. 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.cc/pify?keyword=format+sd+card+ubuntu+ext4
- http://files.shanepsingh.com/uploads/1/3/1/4/131406855/6268538.pdf
- http://files.hayleyhudson.com/uploads/1/3/0/7/130739789/cd859.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/5816/5925/files/936_483_2979.pdf
- https://cdn.shopify.com/s/files/1/0435/6092/7393/files/curriculum_vitae_online.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73881495537.pdf
- https://cdn.shopify.com/s/files/1/0429/6212/4959/files/kigurag.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sarozasupevukofapunaxovu.pdf
- https://cdn.shopify.com/s/files/1/0431/2953/6668/files/kerafepedab.pdf
- https://cdn.shopify.com/s/files/1/0432/9367/1588/files/87466449797.pdf
- https://cdn.shopify.com/s/files/1/0432/6414/7609/files/adversus_jovinianum.pdf
- https://cdn.shopify.com/s/files/1/0445/6411/9716/files/cypress_export_test_report.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_off00005c2e.bind7d3af263ba55dc0a9c0b99817fc6003871bac2400fb848b7c067defce2e3b21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C2E | 5304 bytes |
font_01_sfnt_off00006e18.bina36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E18 | 1800 bytes |
font_02_sfnt_off000076a5.bin93da4c1f0fa8eef1f775890140608d9220f9b499de6da7237af4d552f3e4f469 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A5 | 12156 bytes |
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