MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting a link farm used for phishing or malware distribution. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. Although no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a malicious document designed to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/7eprfcsdjkjf1dga5b90ria49m/77406844118.pdf In PDF document text
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/5vjvn5sfhol605k9d3olhikjf4/57991375241.pdfIn PDF document text
- http://dentherapia.hu/files/file/pilefe.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160706adfbef8c---53805631434.pdfIn PDF document text
- http://ahlhy.com/uploads/file/280608173435.pdfIn PDF document text
- https://mobilieroccasion.fr/uploads/file/durivonexi.pdfIn PDF document text
- http://korean-school.hu/hangul/userfiles/file/56624408654.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ffc5572d2---4844052048.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092aeacba16c---92977660121.pdfIn PDF document text
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/uoja1ttlm2baa9jg9ubjd38473/gizabagom.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/rvtno263iop6f9c5cvopi1ie17/53096826533.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d2671035c---ditaxixarapabe.pdfIn PDF document text
- https://cnn-logistics.com/asset/files/sigani.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eff7493de1---segalajip.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c652939324c---fodekerenudukomide.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/cc0a7425f86c48394bb4db1f2e264903/wedekalipugofubog.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160840e3d6f1a0---19377478665.pdfIn PDF document text
- https://bahispesinde.com/gnc/veri/_files/judiz.pdfIn PDF document text
- https://flour.co.uk/ckfinder/userfiles/files/52523950360.pdfIn PDF document text
- https://biodent.ro/m4fm_files/m4news/ck-uploads-files/wekuzudilo.pdfIn PDF document text
- http://lamachine.nl/userfiles/file/fowif.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/16094bf1b9d2f9---1326679321.pdfIn PDF document text
- http://robertfeinberglaw.com/images/edit_images/file/75495281441.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d79589176e1---98822772854.pdfIn PDF document text
- http://rubivina.com/Images_upload/files/fevomafekeme.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=oxford+word+skills+basic+exam+pdfPDF 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_off0000c741.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC741 | 16284 bytes |
SHA-256: 208043d9736f922241026a6bb415f0c7fc8c19fc695727385057d1b7d5934917 |
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font_01_sfnt_off0000f087.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF087 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001089e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1089E | 11024 bytes |
SHA-256: 5108620c50d00ee4b56670b3513374e5a3791c4b8ffb7ec93cebb97d3b3be38f |
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