MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links, many pointing to compromised WordPress sites, which likely serve as a link farm to distribute further malicious content. The document body, though heavily obfuscated, suggests a lure related to 'Office 2019 key 2020', aiming to trick users into clicking the embedded URLs.
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://laborke.ru/uplcv?utm_term=office+2019+key+2020 PDF link annotation
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/1g6pbt8244hk1l6l3purldg2i9/zebumorono.pdfIn PDF document text
- https://anjingliar.com/contents//files/72423431112.pdfIn PDF document text
- https://balaji-technology.com/userfiles/file/nafexisarupivejo.pdfIn PDF document text
- http://sushiloverca.com/uploads/files/59522311568.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/gh67ud1i99llj4bj7geqd8n66r/pufugimabitowokazuzezek.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/a4ff3c3bd544dc04f99737eaf4ab4dcb/59101338145.pdfIn PDF document text
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cfc7c0550f---xepogi.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608723287b21f---57810178986.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/fpke8ahd4e206h07kk6hffm430/54666629269.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094db2b5ccb2---11834669492.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a8865e3c92---supide.pdfIn PDF document text
- http://transinfosoft.com/userfiles/file/rusavalegamatagib.pdfIn PDF document text
- https://eobliecky.sk/userfiles/file/fogubolotimojovumaso.pdfIn PDF document text
- http://oticonshop.net/ckfinder/userfiles/files/57622916587.pdfIn PDF document text
- https://cissud.eu/uploads/ck_editor/files/bozafus.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/c6bcf69db05425fb82505fe98be04eb8/miwaj.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/v25b4ldvofm7i9g733dqlvdu59/weguniminumoko.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_off0001019b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019B | 5036 bytes |
SHA-256: c3545cf8abb2d53f97cb3741b31cf59ba28383f573ef16e89f880feaeec6a6a0 |
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font_01_sfnt_off000112f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112F9 | 10892 bytes |
SHA-256: 37f540d1100374a5352927ce110b8d5d1aafb5df4ade2c527af48205d1509ccc |
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