MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and 'Qt', indicating it was likely generated by a tool rather than being a legitimate document. The presence of external URIs and the overall structure strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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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External URI info PDF_URIPDF contains an external URL action
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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://zajinet.ru/strik?utm_term=oracle+sql+query+substring+example PDF link annotation
- https://static.s123-cdn-static.com/uploads/4489834/normal_5fdde0679107a.pdfIn PDF document text
- http://bofesota.66ghz.com/building_construction_lecture_notes.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467004/normal_60102c866cb6d.pdfIn PDF document text
- http://davebamonuzove.medianewsonline.com/shakespeare_the_sonnets.pdfIn PDF document text
- http://desajegurake.scienceontheweb.net/bewigged_and_bewildered.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383801/normal_6005f069574db.pdfIn PDF document text
- http://ravevuzovije.mywebcommunity.org/consonant_blend_worksheets.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376625/normal_605ef065ce316.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462096/normal_600b0f2aabe29.pdfIn PDF document text
- http://labiluwewinedu.22web.org/airline_commander_apk_mod_data.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/b5097ca4-b7c6-46f7-a18a-166fe72773b6/86979660018.pdfIn PDF document text
- https://s3.amazonaws.com/rodakarugupoko/long_dark_blue_formal_dress.pdfIn PDF document text
- http://ruvibeli.rf.gd/bobisikelewolug.pdfIn PDF document text
- https://s3.amazonaws.com/rovikibixu/accounting_income_statement_format.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/50a2fcee-eeb9-40d3-b348-205e36e90473/94755474689.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2d570cb8-ecf1-47c5-9a2a-d2bf89281b36/washington_dc_airport_code_iata.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8e18c5ce-00c7-4520-8f88-ed5141c8fa22/g_shock_g100_battery_replacement.pdfIn PDF document text
- http://doruxexim.epizy.com/33268580673.pdfIn PDF document text
- https://s3.amazonaws.com/vonusirukete/citroen_c4_picasso_grand_manual.pdfIn PDF document text
- http://zuxekesimulir.epizy.com/calendar_2018_week_numbers.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_off0000ec2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC2B | 5716 bytes |
SHA-256: 7eef84f24d8668043a1d3b8b0b7732ca7d16f90ed348d64dc0d74cee769d5a5b |
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font_01_sfnt_off0000ff94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF94 | 11116 bytes |
SHA-256: 50b7a877cd1efa3223d5b288d064a1d45c7f8599c1a32b0822d786f56c2df775 |
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