MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating it is likely a phishing or trojan delivery mechanism. The document body, though heavily obfuscated, suggests a lure related to 'English teaching methods and approaches pdf'. The numerous embedded URLs, many pointing to compromised CMS upload storage or disposable hosting, are indicative of a link farm designed to redirect users to malicious content or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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/uplcv?utm_term=english+teaching+methods+and+approaches+pdf PDF link annotation
- http://kondicionery-vidnoe.ru/upload_picture/file/mabemexemuketa.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/44eb0ef6887f55f74bac61d4c2303fb3/batawemovuxapesuxuledor.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/b5f03d77c7a90bd444b6a6ebf20c51f0/60565438905.pdfIn PDF document text
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16070b86069af1---20789323365.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16085ac589cebc---sagisamukuwiwotajutudobo.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a57e75cd616---59398519875.pdfIn PDF document text
- https://boyanbolyarski.com/userfiles/file/radaxikakudutasebimekenaz.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/jslofa9sjagdev90a33ra2b3b7/limuditenuderikametel.pdfIn PDF document text
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/ioegaugd3vh1b5jid15m33suef/4255648713.pdfIn PDF document text
- http://aexpress.lv/index/images/up/file/87690858884.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076261082bf3---wabozirog.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/bb4blb74m26l4eak7tlmjc4i5c/49875952500.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e1b36c2144---jotekixadesijuf.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cff9b7a79c---34711850376.pdfIn PDF document text
- http://kulturazebrak.cz/userfiles/13310879477.pdfIn PDF document text
- https://kopari.hu/files/file/dovifozabatizarokogu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e7d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7D1 | 5524 bytes |
SHA-256: 6211c5cadb3eeb58f10049a9c6a81c7163227198a9a8281bcedd0e4072188f8b |
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font_01_sfnt_off0000fa76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA76 | 10452 bytes |
SHA-256: f2b2e2fe39af73c410bf1692e8f77680db1a6dbf883279592ab7262487fbd920 |
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