MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document identified as malicious by ClamAV and an ML classifier. It contains a significant number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. One of the extracted URLs, 'https://zajinet.ru/strik?utm_term=temperate+forest+in+india+occur+in', is particularly suspicious. The presence of PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a deliberate attempt to create a network of links, likely to drive traffic or distribute further payloads.
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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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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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=temperate+forest+in+india+occur+in PDF link annotation
- https://bolubevegu.weebly.com/uploads/1/3/1/4/131454373/fujep-fabusotom-kejimumafef-baseger.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478664/normal_6040bdffc3ad6.pdfIn PDF document text
- https://ruvararet.weebly.com/uploads/1/3/1/3/131398095/mivedozepezenaz.pdfIn PDF document text
- https://vopifubuk.weebly.com/uploads/1/3/1/6/131636719/5989857.pdfIn PDF document text
- https://zogolobogin.weebly.com/uploads/1/3/4/6/134690222/wutavenurisol-ditasavemelaki-kezerirono-tawelubepepu.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424347/normal_5fe10836eb474.pdfIn PDF document text
- https://jokinurelebuvet.weebly.com/uploads/1/3/1/8/131856462/zemonawejinoxik.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495531/normal_5fe9a09b330dd.pdfIn PDF document text
- https://merogowaxoku.weebly.com/uploads/1/3/1/0/131069891/22ac3861116.pdfIn PDF document text
- https://susetizumuru.weebly.com/uploads/1/3/4/4/134461935/33872c62.pdfIn PDF document text
- https://buzixigadojaw.weebly.com/uploads/1/3/5/3/135316262/wujujorumadiwuxetu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378846/normal_602d774012aa1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4499300/normal_605621a746e09.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/bfbd85dc-c801-4894-be39-e537e953dd43/32916337768.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1568e2b5-6300-4ed3-acf5-3416ec7109db/jamosubowojipu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/694c79e6-75ad-410b-afe7-12bb740dee2c/how_to_use_d_link_dir_605l_as_repeater.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c4e3ec58-d413-4f29-a7e2-29c8fbf25c28/coleman_powermate_generator_spark_plug.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1b6caea0-06ef-42c7-b994-b18a597bd7e3/how_to_calculate_boiling_point_with_pressure.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ed5d933f-c382-4a93-b02d-a8f6a1ac31a8/dinitaxikabojaxo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/077b65fd-27b0-4e18-a44b-8dd6fbcd2a31/maze_runner_series_cast.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b960c349-88e5-483b-b294-1426f87016c3/persepolis_comic_strip.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_off0001af73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AF73 | 5220 bytes |
SHA-256: 4e47adcbbbf64f78162d6c7608270beaca9c6c24122d40e9bac40ed884e248b7 |
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font_01_sfnt_off0001c11a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C11A | 11248 bytes |
SHA-256: ddeb3d4e3814b08a7d3b34af1015fb50c149e72b23cb60cee20d247b687b6ccc |
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