MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier, indicating malicious intent. It contains numerous external links, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute malicious content or conduct phishing. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to obscure the true destination of the links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://pistant.ru/uplcv?utm_term=singular+and+plural+worksheets+for+grade+5+with+answers PDF link annotation
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//86516989463.pdfIn PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/ff9be54ff094d9401e0b41b92e19840b/pekadubib.pdfIn PDF document text
- http://hnc2.com/userfiles/file/nadakopetufibibuzoloxef.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/771cdb609cf98b153adfe8f71270d00b/pituruzajuwigatowin.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a1cc843170---89669574977.pdfIn PDF document text
- http://herium.net/FileData/ckfinder/files/20210907_84AC1768F7397CBF.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1611b1fbcf413d---70604321126.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16079b59336048---xubawojibo.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/db01228b73a1c4f9f80ee867f4fbe502/nalife.pdfIn PDF document text
- http://apricomm.com/userData/board/file/34885868988.pdfIn PDF document text
- https://stillwaiting.org/userfiles/file/45425394126.pdfIn PDF document text
- https://hsdinstruments.nl/uploads/files/98072997193.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/ad81aa8b18e593625f8b802f07005ebc/negosinirexal.pdfIn PDF document text
- https://studiorampinelli.com/file/xulop.pdfIn PDF document text
- http://zbraneklapka.cz/ckfinder/userfiles/files/51983277080.pdfIn PDF document text
- https://kermanrooz.com/img/files/35745261050.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/28e5ff6df89736a5df4dcd1025b5f5a2/naliz.pdfIn PDF document text
- http://autowagon.it/userfiles/files/24594422266.pdfIn PDF document text
- http://brmhn.com/userfiles/file/20210805180136_jxrjc9.pdfIn PDF document text
- http://silverleafspa.ca/clients/10619/File/kokegufabeboj.pdfIn PDF document text
- http://geoass.eu/userfiles/files/51694370048.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160cd5781b08db---kojiwazefe.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/26eb1df85dc0d1de28e8ebea0761327f/74518967887.pdfIn PDF document text
- http://asckhn.com/acskhn/userfiles/file/77247743016.pdfIn PDF document text
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/4b7403acd8bceb03dbf598103a0c52eb/monadoseki.pdfIn PDF document text
- https://panificioilcavaliere.it/userfiles/files/riwuzexunojupat.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dc74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC74 | 11264 bytes |
SHA-256: f3943264cf06dd988764bd2c6feb1bff2099b38bde32d85bd4bfe15e1eeef36d |
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font_01_sfnt_off0000f6b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B1 | 18188 bytes |
SHA-256: eb40d102791dcce075afb1d020ebc93e6546fd6a6af087dc6db7e7dd068de43e |
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font_02_sfnt_off000125db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125DB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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