MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a malicious redirector link disguised as a link to a basic English learning PDF. The primary heuristic indicates the PDF links to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs suggest a 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.cc/wb?keyword=como%20aprender%20ingles%20basico%20pdf
- http://files.reachub.org/uploads/1/3/1/0/131071043/lipekodotidifosexugi.pdf
- http://files.thevillageshala.com/uploads/1/3/0/9/130969915/c9588dc736dd7c1.pdf
- http://basor.purpleheartracing.org/uploads/1/3/1/4/131437778/senuxikosifosa_wasoz_lumukiferulejez_xosewogo.pdf
- http://files.janegraceart.com/uploads/1/3/1/4/131438353/5367766.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0439/0486/0328/files/mythical_creatures_mod_1._8.pdf
- https://cdn.shopify.com/s/files/1/0431/1692/0996/files/mekokujuvuz.pdf
- https://cdn.shopify.com/s/files/1/0429/0058/6649/files/59368447654.pdf
- https://cdn.shopify.com/s/files/1/0434/8765/8150/files/42261520704.pdf
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/redomajosojif.pdf
- https://cdn.shopify.com/s/files/1/0430/3188/8035/files/85482836910.pdf
- https://cdn.shopify.com/s/files/1/0437/1356/0727/files/bozotogubekagozim.pdf
- https://cdn.shopify.com/s/files/1/0431/4012/0733/files/1936051356.pdf
- https://cdn.shopify.com/s/files/1/0430/3034/7938/files/14366101168.pdf
- https://cdn.shopify.com/s/files/1/0433/6638/3770/files/shipping_up_to_boston_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0434/4571/5109/files/xefan.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_off00005f61.bin50b2942b29067e4ad4da31037485f47362a131b48934ad100daccdd25965740a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F61 | 5520 bytes |
font_01_sfnt_off00007207.bin05f9c6873981e872491fb8df5fe63fa88c5222b7dde9853fb8ebf8f51ab7d0b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7207 | 12488 bytes |
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