MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file flagged by multiple critical heuristics as malicious, including a redirector link and a large SEO link farm. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated, but the presence of numerous external links suggests a phishing or SEO spam campaign. The ClamAV detection further supports the malicious classification.
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://yafferge.ru/wix?keyword=4.2+kiloyear+event+wiki In PDF document text
- http://reduslimer.website/afl_finals_series_format8g2ci.pdfIn PDF document text
- https://nezejigon.weebly.com/uploads/1/3/4/6/134611081/zalukojeb.pdfIn PDF document text
- https://zezevibowavaki.weebly.com/uploads/1/3/4/8/134854125/9172655.pdfIn PDF document text
- http://50off.pro/miguxewikonufoge0n8.pdfIn PDF document text
- http://zelopaqq.xyz/romeo_y_julieta_resumen_del_libro1g3ie.pdfIn PDF document text
- http://health2health.online/forklift_daily_checklist_word_document75ck4.pdfIn PDF document text
- http://digitalmedialit.com/whatsapp_backup_restore_androidpoyt3.pdfIn PDF document text
- http://com-connexion.xyz/61759396321fm3cq.pdfIn PDF document text
- https://nalovitifa.weebly.com/uploads/1/3/4/6/134600698/529854.pdfIn PDF document text
- https://xurexesezegurez.weebly.com/uploads/1/3/4/0/134096141/3730589.pdfIn PDF document text
- https://mibofadap.weebly.com/uploads/1/3/1/6/131637701/1121902.pdfIn PDF document text
- http://creditactive.info/87001728822kh9a4.pdfIn PDF document text
- https://bunoworerut.weebly.com/uploads/1/3/1/4/131438217/7189145.pdfIn PDF document text
- https://finamiwowekizo.weebly.com/uploads/1/3/2/3/132302732/pobebibexi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/boxujetanonikuv/australian_cricket_newspaper_reports.pdfIn PDF document text
- https://234a0c07-d908-4261-bb83-16b3c96a9b04.filesusr.com/ugd/73e0e6_48717f90346c477087c5b3ebe3cd78ac.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nezanurugega/minerales_alimenticios.pdfIn PDF document text
- https://s3.amazonaws.com/watajive/dark_souls_3_anri_not_in_catacombs.pdfIn PDF document text
- https://ed0f7819-48b4-4c0d-9119-93de03d81b9c.filesusr.com/ugd/e481ce_26ac00ae797d443e84d226590c220997.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zozuxukoxo/dapim.pdfIn PDF document text
- https://s3.amazonaws.com/tuxexi/nusarudawasotogepo.pdfIn 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_off000107a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107A1 | 4976 bytes |
SHA-256: fb2e0ffb9816a8d3d031ed7751a0c0d73feafde960bc6aee3ba9f8801297ded9 |
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font_01_sfnt_off000118c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118C7 | 11080 bytes |
SHA-256: 7827efb4e12434c530ef9253ad4d8078d2f40dfa76d5a39663aa8d6823cf11b6 |
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