MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm on disposable hosting. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the embedded URLs and the nature of the heuristics suggest a phishing or spamming campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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=what+do+vegan+bodybuilder+eat In PDF document text
- http://kvrovk.xyz/zotawatimebuxesujy7qax.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4503617/normal_5fde318270e81.pdfIn PDF document text
- http://idealica-columbia.site/bertrand_russell_history_of_western_philosophy6kc1l.pdfIn PDF document text
- https://wutotopuwa.weebly.com/uploads/1/3/4/4/134464713/900538.pdfIn PDF document text
- https://ladunibik.weebly.com/uploads/1/3/4/0/134096621/4df2b97e8f3ac.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382972/normal_5fc69133239df.pdfIn PDF document text
- http://the-glow.ru/dictionary_download_english_to_tamilx6jsx.pdfIn PDF document text
- http://fruit-citrus.space/28811135364syd87.pdfIn PDF document text
- https://fazugiwe.weebly.com/uploads/1/3/4/0/134012697/62509.pdfIn PDF document text
- https://melekutiruj.weebly.com/uploads/1/3/2/7/132740408/pedetemulena.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422367/normal_60483563c2547.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491933/normal_6035ca9a1e623.pdfIn PDF document text
- https://mikudope.weebly.com/uploads/1/3/5/3/135305195/temajabipixeguref.pdfIn PDF document text
- https://binigikuvoloxog.weebly.com/uploads/1/3/5/3/135332024/kafefejikojebasosen.pdfIn PDF document text
- http://sayfelengs.space/zafipamuzarixuxukajejire5195.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://a43ab9c2-5efb-4cee-ac06-b782a0f5e207.filesusr.com/ugd/4826f5_1893ed3caf7746ca962cce9b95dc168b.pdf?index=trueIn PDF document text
- https://7a3463bf-3117-47cc-940f-ad9d50d05675.filesusr.com/ugd/9f2514_ed00ae4cffa949158f6c862e6c1afe04.pdf?index=trueIn PDF document text
- https://0b670cc3-d94b-4117-8b98-7ce677fb6c21.filesusr.com/ugd/7bc559_4a5c61abf43a421b85a9ca452db450c3.pdf?index=trueIn PDF document text
- https://d4508431-0eee-4913-ac2a-2ec907ed9b18.filesusr.com/ugd/12daa7_5ae3dacdebdd4742b3bd49d232e9f768.pdf?index=trueIn PDF document text
- https://01477de9-116b-42a6-a62c-54244336611e.filesusr.com/ugd/dea9e9_8750916d881946f18b34ac95ec51001d.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_off0000eaff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAFF | 5224 bytes |
SHA-256: 962b9fa6a21cf1899774c5bf10935b90f1b5f4b953b60e9133750b78e0a3c5eb |
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font_01_sfnt_off0000fcd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCD5 | 10828 bytes |
SHA-256: 267afd5e6522140a62d17f94824bc1be11cea4dca2ce4c2176ba5ee46d174a78 |
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