MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a link farm pointing to compromised WordPress sites, a common tactic for distributing malware or phishing lures. Embedded JavaScript was also detected, suggesting potential for further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16139258f3924d---8199243807.pdf In PDF document text
- http://odontoflash.eu/userfiles/files/farujotefodaluk.pdfIn PDF document text
- https://businessincasey.com.au/application/third_party/ckfinder/userfiles/files/bikafelejubafewijodawid.pdfIn PDF document text
- http://designbyjoseph.com/uploads/File/xuromejosumi.pdfIn PDF document text
- https://dovolena-jiznicechy.cz/uploads/pisaxubusovagurugivufome.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/tubghu1hc98131pct5o3ijakj4/gixas.pdfIn PDF document text
- https://tungafilm.com/dorceiys/ckfinder/userfiles/files/volapomikesabuzoboluz.pdfIn PDF document text
- http://qwerty.pl/_data/file/34760758453.pdfIn PDF document text
- http://positiveforce.in/uploads/files/37919663922.pdfIn PDF document text
- http://st-johnson.com/Uploadfiles/files/folatur.pdfIn PDF document text
- https://unicon-msk.ru/data/files/53189449939.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/fbe422f623fd426d0d731c881f0d89f4/worololam.pdfIn PDF document text
- http://wonderful-foods.net/userfiles/file/16696649069.pdfIn PDF document text
- https://barrierball.cl/ckfinder/userfiles/files/bazerunek.pdfIn PDF document text
- https://mvmdigital.gr/files/files/xozedukeludewuluwa.pdfIn PDF document text
- http://giftboxvietthuy.com/upload/ck/files/joxugekojevesafe.pdfIn PDF document text
- http://48bulls.com/js/upload/files/musojesowifizisiwi.pdfIn PDF document text
- http://drcleancenter.com/uploads/files/202109092055399963.pdfIn PDF document text
- http://the100voicesofgospel.de/fichiers/newsletter/file/43925631958.pdfIn PDF document text
- http://infinity-pro.ru/userfiles/file/91234029286.pdfIn PDF document text
- http://whkmradio.com/userfiles/file/debakubulegadafogufomoge.pdfIn PDF document text
- https://datawire.gr/files/files/52984875606.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=coc+apk+cheatPDF link annotation
- 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_off0000e2f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F2 | 17296 bytes |
SHA-256: 7cfee430c5bb2d98715d73eacd9a072ae7d597da61be655050d154fd5fbc52ba |
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font_01_sfnt_off00010fb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000127d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127D0 | 10084 bytes |
SHA-256: b8b9f7e369c31b3ae54af811c3cd7190ed022b04faffe9e5a463ae1b7062f15e |
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