MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains embedded links that lead to a known malicious redirector, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains text related to 'solitary pulmonary nodule guidelines' and a URL, suggesting a lure to encourage clicks. The presence of numerous external PDF links, many pointing to benign Shopify domains, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination. 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.cc/wix?keyword=solitary+pulmonary+nodule+guidelines
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0451/2792/5925/files/how_to_speak_in_english_fluently_tips.pdf
- https://cdn.shopify.com/s/files/1/0439/3353/2315/files/ios_8._4_gba_emulator.pdf
- https://cdn.shopify.com/s/files/1/0434/9100/0472/files/98518955359.pdf
- https://cdn.shopify.com/s/files/1/0437/6464/6049/files/7667098423.pdf
- https://cdn.shopify.com/s/files/1/0429/0763/1779/files/xebodafoxapevibafimoxu.pdf
- https://cdn.shopify.com/s/files/1/0437/4937/6149/files/blank_movie_full_video_song.pdf
- https://cdn.shopify.com/s/files/1/0467/5600/4003/files/97808938971.pdf
- https://cdn.shopify.com/s/files/1/0436/5844/4958/files/dadorob.pdf
- https://static.usrfiles.com/ugd/225520_58ba585b5b2d47f99151b1a7823770ce.pdf
- https://static.usrfiles.com/ugd/771ea4_ca49fe78b4e04202875b2b69aee3e576.pdf
- https://static.usrfiles.com/ugd/221f3a_c1c109bd065f4fdfbdcfe57cb0b8a6e2.pdf
- https://cdn.shopify.com/s/files/1/0440/8436/3416/files/walking_dead_comics_online_free.pdf
- https://cdn.shopify.com/s/files/1/0436/8501/9801/files/synthesis_of_fragrant_esters_lab_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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010541.binffbeafa8b898b51e1736a18e05058d0c244ad0415e04841730970f684e13cfa1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10541 | 5484 bytes |
font_01_sfnt_off000117d7.binc6afc4b3f8264ee7b681294fe46f0058520b8aa55ea5c8b6bc9733ef0600386a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117D7 | 15504 bytes |
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