MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links, many pointing to compromised WordPress upload directories and other disposable hosting. The document body, though heavily obfuscated, suggests a lure related to 'exercise for tenses with answers', indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware.
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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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://garglob.ru/uplcv?utm_term=exercise+for+tenses+with+answers PDF link annotation
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c258ca07838---tujarobisavedowamuxalura.pdfIn PDF document text
- http://sns.hu/_user/file/kotep.pdfIn PDF document text
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9430cd8ca6---minudokekevidiviwerozizi.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c732d2659e---46875016315.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/tiwezel.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a217f3ea6b6---bomesuzer.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e2afa530e---safed.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160bfab17455ae---vamobolodejinabetuxixi.pdfIn PDF document text
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a922dd0c17a---mujujuwozenulefe.pdfIn PDF document text
- http://jkmdc.com/aversystem.com/userfiles/file/rugokiragawizonon.pdfIn PDF document text
- http://soflocops.net/clients/81266/File/dozalumujizifazisol.pdfIn PDF document text
- http://bigsvatcharasith.com/userfiles/file/kiraduzewipusavesalimigej.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076a385abd17---jijudif.pdfIn PDF document text
- https://upchealth.net/wp-content/plugins/super-forms/uploads/php/files/695be8d7033b84e78a89130848303430/xamejapigarovaw.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609cba5d659d5---70674345132.pdfIn PDF document text
- http://intergeored.com/upload/File/winebudadelom.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_off00010295.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10295 | 5056 bytes |
SHA-256: 9f0bd1ddd6932d37cd9d445f3a629701a6d616343ddbd5a0b9da1c643ec69461 |
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font_01_sfnt_off000113df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113DF | 10876 bytes |
SHA-256: 8fd161d48ba6c277b7ff5884e6c09d63c831f28e9a526e00acd69a924c2e39fe |
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