MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to disposable hosting and redirectors, indicating a link farm designed for phishing or malware distribution. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to software installation, suggesting a lure to trick users into clicking malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://dafemum.ru/strik?utm_term=install+realtek+hd+audio+software In PDF document text
- https://cdn.sqhk.co/numisezopo/jaeNhc7/angina_de_pecho_electrocardiograma.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420438/normal_6007a454e45c2.pdfIn PDF document text
- https://cdn.sqhk.co/savageven/jixylCD/zig_zag_balloon_column.pdfIn PDF document text
- http://nuvagefo.medianewsonline.com/class_11_accountancy_ncert_book_download.pdfIn PDF document text
- http://jeratojovu.66ghz.com/blackberry_q10_firmware_latest_version.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379219/normal_60592e2ea4e6b.pdfIn PDF document text
- http://leniwatojetojem.medianewsonline.com/liberation_war_in_bangladesh_essay.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384152/normal_6043f6fc63a12.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://lugenizuridaj.atwebpages.com/riwilikinawovoxavalosan.pdfIn PDF document text
- https://8a5a474a-a671-4857-921d-d1df0ee72544.filesusr.com/ugd/523716_9c3f9875ee5b4101b576f3b380d9943c.pdf?index=trueIn PDF document text
- http://sarowagilujet.rf.gd/aocs_official_method_cd_3d_63.pdfIn PDF document text
- http://witesenigo.atwebpages.com/kasus_anoreksia.pdfIn PDF document text
- https://0cc2a7d0-6f33-4335-9ec9-554d9418487e.filesusr.com/ugd/cb4a18_189b5a109567469bb88087e61f145767.pdf?index=trueIn PDF document text
- http://ruvosetozobeve.epizy.com/bunagoxuvaf.pdfIn PDF document text
- https://eff7b67d-fef5-45b7-bcd6-ffb1b71d3a14.filesusr.com/ugd/b4c9df_074ce7b39a744cb1aa9ea86d8be5dac6.pdf?index=trueIn PDF document text
- http://xukuwagozoli.epizy.com/luminevubovis.pdfIn PDF document text
- https://5fdaa9e0-ad6d-443b-8779-beb8e45026dc.filesusr.com/ugd/05301a_83feb45ddc1c4b0fb8e6bd8b20161f9b.pdf?index=trueIn PDF document text
- https://2cfcb734-ec62-4cd9-b61c-03d4762ad765.filesusr.com/ugd/a891c0_142dea8a6718470784704e8b656e78c3.pdf?index=trueIn PDF document text
- https://911f1565-2faa-4874-b261-330d521e7362.filesusr.com/ugd/f46427_f7f9b24f5fe347c7b6c3417c59853e0e.pdf?index=trueIn PDF document text
- http://xejojud.epizy.com/69031199953.pdfIn PDF document text
- https://17851959-1482-4b49-8222-7b7b0c628459.filesusr.com/ugd/3cb679_05c14896b3384ad79f67cb79989c6689.pdf?index=trueIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e73d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE73D | 5088 bytes |
SHA-256: f06a38a1f122ff936c54ffcaf989d04de270584f560a59cb25fba66a3b076049 |
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font_01_sfnt_off0000f896.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF896 | 10756 bytes |
SHA-256: dbf0a303ddc2ef801ac17a9c1a27f352340e2b58469a695e2952d7267f0df7f1 |
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