MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which points to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for 'brain teaser riddles and answers', directing the user to the malicious URL. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or redirection attempt.
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/wix?keyword=brain+teaser+riddles+and+answers
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/6618/7176/files/19046393802.pdf
- https://cdn.shopify.com/s/files/1/0434/0377/2056/files/solakuwar.pdf
- https://cdn.shopify.com/s/files/1/0429/3417/3859/files/50926370687.pdf
- https://cdn.shopify.com/s/files/1/0433/0618/8955/files/fmaj7_chord_piano.pdf
- https://cdn.shopify.com/s/files/1/0433/0471/4404/files/pijesigevetugukomob.pdf
- https://cdn.shopify.com/s/files/1/0431/0020/9319/files/dibanijejudixakuri.pdf
- https://cdn.shopify.com/s/files/1/0440/7777/7061/files/3994402325.pdf
- https://cdn.shopify.com/s/files/1/0435/1275/8426/files/10945191714.pdf
- https://cdn.shopify.com/s/files/1/0433/8774/8519/files/american_horror_story_episode_guide_season_8.pdf
- https://cdn.shopify.com/s/files/1/0430/3277/2757/files/digovavuxiwuja.pdf
- https://cdn.shopify.com/s/files/1/0435/5751/9523/files/update_android_8._0_oreo.pdf
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/cazadores_de_sombras_los_origenes_google_drive.pdf
- https://cdn.shopify.com/s/files/1/0438/2933/0082/files/exothermic_and_endothermic_graphs_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0430/9313/1425/files/tipping_the_tour_guide.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_off00005fec.bin9ed5790cdd01e1740169dba96fc816456e706ffa8c3a31fa4c443f65e43f2ac1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FEC | 4960 bytes |
font_01_sfnt_off000070e9.bina6b0bcc205383f89740501e7ca161d9f056cb67983b384eba601e8af7a094b0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70E9 | 10384 bytes |
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