MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by ML classifiers and ClamAV, flagging it as a phishing trojan. It contains a link farm with numerous external links, many hosted on disposable domains, suggesting an attempt to redirect users to malicious content. The primary lure appears to be a fake free download of a medical textbook, indicated by the document's metadata and embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://synerhu.ru/pbw?utm_term=hadzic+regional+anesthesia+pdf+free+download PDF link annotation
- https://cdn-cms.f-static.net/uploads/4458417/normal_603ce80c71342.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476140/normal_6049f41a6f3f8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387031/normal_60608af5f34e8.pdfIn PDF document text
- https://bovemadewu.weebly.com/uploads/1/3/4/6/134651231/rimedokagit.pdfIn PDF document text
- https://mojipakubi.weebly.com/uploads/1/3/4/6/134679558/jewawesifajaj-tubuvixowu-pefip-lusezalozub.pdfIn PDF document text
- https://rilofope.weebly.com/uploads/1/3/4/6/134630674/529f4476.pdfIn PDF document text
- https://dofenerezi.weebly.com/uploads/1/3/4/4/134446603/dojukugi.pdfIn PDF document text
- https://mifimixaxenerut.weebly.com/uploads/1/3/3/9/133999571/2efa87a.pdfIn PDF document text
- https://nulabelavomeviz.weebly.com/uploads/1/3/1/4/131413951/2517466.pdfIn PDF document text
- https://tadegelu.weebly.com/uploads/1/3/4/7/134734806/3f6211a7121e.pdfIn PDF document text
- https://rowimunikak.weebly.com/uploads/1/3/5/3/135346477/1655074.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405925/normal_606548bc1272d.pdfIn PDF document text
- https://kigilepoda.weebly.com/uploads/1/3/4/9/134901239/biwepuwa_nobijapomi_xijaxilimefim.pdfIn PDF document text
- https://foravidamekog.weebly.com/uploads/1/3/2/3/132303307/35fd4b64e2f4d.pdfIn PDF document text
- https://jobajepefo.weebly.com/uploads/1/3/1/4/131482915/4788290.pdfIn PDF document text
- https://wokozizexufam.weebly.com/uploads/1/3/4/2/134234926/7077660.pdfIn PDF document text
- https://ledekatibawe.weebly.com/uploads/1/3/4/2/134265754/melimafonufowe.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/02072b24-8611-422d-bc4f-b87eae47b5a8/statistics_tutorial_for_beginners.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/56ec7007-0c4d-4c17-974f-1329b4fcea9b/57823976467.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/287940b6-4a01-4fa6-9125-fc5700c88920/equivalent_fractions_worksheets_grade_5.pdfIn PDF document text
- http://zafobagusaz.pbworks.com/w/file/fetch/145122357/45259097129.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1b790787-66d0-4bab-a635-b22fb7b0b8fa/how_to_change_oil_from_honda_hr214_lawn_mower.pdfIn PDF document text
- http://zopilep.pbworks.com/w/file/fetch/145211973/7607611071.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_off0000e757.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE757 | 5520 bytes |
SHA-256: 8d32b7a7a880ec22a3b3b158ab814c0cf200a8882a86eb8b7be488acb6e499da |
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font_01_sfnt_off0000fa2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA2D | 10868 bytes |
SHA-256: 8bbe0ced88f53eb83a232c8116d2b370b71e66e0a1c8cdf180e3183b695d2318 |
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