MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a significant number of embedded URLs, with at least one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting an attempt to manipulate search engine results or distribute spam. The ML classifier also 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.com/pify?keyword=loud+sound+alarm+tone
- http://files.cfhsperformingarts.com/uploads/1/3/0/9/130969830/4446236.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/4893/4295/files/30050710040.pdf
- https://cdn.shopify.com/s/files/1/0435/8524/1256/files/chapter_3_quantitative_research.pdf
- https://cdn.shopify.com/s/files/1/0430/8808/5143/files/27294449724.pdf
- https://cdn.shopify.com/s/files/1/0437/1211/8952/files/69170891104.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51730359377.pdf
- https://cdn.shopify.com/s/files/1/0431/9582/6336/files/netonozorokemerexuri.pdf
- https://cdn.shopify.com/s/files/1/0428/8305/5782/files/gazadig.pdf
- https://cdn.shopify.com/s/files/1/0429/5183/5801/files/captains_of_crush_training_program.pdf
- https://cdn.shopify.com/s/files/1/0440/3567/0166/files/92164909920.pdf
- https://cdn.shopify.com/s/files/1/0433/9128/7461/files/evil_dead_ii_parents_guide.pdf
- https://cdn.shopify.com/s/files/1/0427/9812/1119/files/sadewuwifaxi.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004521.binded32170f3d030cd95811426c82548e8d8b0c3859773afe9f4d57c005f3367a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4521 | 4912 bytes |
font_01_sfnt_off000055b7.bin1f75b7d058f62885209f330d9c5b3213bdd5576f28bc44a0cfeeaabe9fffee73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55B7 | 10388 bytes |
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