MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as containing a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting. The ML classifier and ClamAV also strongly indicated maliciousness, specifically identifying it as a phishing trojan. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not intended for direct user reading but rather to host links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a83cd2e64b9---fawosazefojiti.pdf In PDF document text
- http://dlmberatung.ch/userfiles/files/bajiva.pdfIn PDF document text
- http://megalaserasia.com/upload///zopusidetusasirusoxozezib.pdfIn PDF document text
- https://alarrabnews.com/images/content/content/file/63253173639.pdfIn PDF document text
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/730312f6bd4032f9c4af6d9e42ef313d/9152275102.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/89354a8cbac5e758c10159b11871b3c6/pabedazilemitixupeva.pdfIn PDF document text
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/003d6d40b4b87793b172fd34e545f4aa/zakotejabojap.pdfIn PDF document text
- http://szm.hu/userfiles/file/gugakiratanawamati.pdfIn PDF document text
- http://suecoop.com/UserFiles/file/forasezuxosakifodowoxuk.pdfIn PDF document text
- http://cimkezes.hu/uploads/ckfinder/userfiles/files/fasonig.pdfIn PDF document text
- https://ceccarmehedinti.ro/userfiles/file/24520033820.pdfIn PDF document text
- http://interel-rus.ru/test/sites/default/files/file/84466758606.pdfIn PDF document text
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161080a296b846---22409206548.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102dd8c2b5b3---87196015629.pdfIn PDF document text
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/6ajdukkel8fpdt5r6tdlmqmqmt/78746655717.pdfIn PDF document text
- https://daotaolaixesontay.com/uploads/file/pozugopagatiz.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/lmnc2ms0329r40gb6pnn0va3qo/42656384336.pdfIn PDF document text
- https://uclerbaklava.com/resources/file/9001395702.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c71c75b294e---xadegek.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160747e26f0cd4---jugovovigipekaru.pdfIn PDF document text
- http://parkhighclassof60.com/clients/871169/File/84520420842.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/ac345441d34f7bd5948ee63543a5ec17/96351123150.pdfIn PDF document text
- http://brette-animation.com/userfiles/file/bavigumu.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/54c8196b22bedac45c9011245d4591eb/jagalevatozore.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/ae8cf572e16c0aaabbbcaf4127cd8eca/palexupumowabebesidatuv.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=tim+ferriss+outsourcingPDF 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_off0000ea3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA3F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010256.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10256 | 10532 bytes |
SHA-256: d0401030286a3162ff5dd4fee6c509902abb43196e8d0b3435fb27f63a70b866 |
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font_02_sfnt_off00011a59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A59 | 18956 bytes |
SHA-256: a7897e910712f175cb74d69a29b3bee500c0962f24d65a47c89a6c7d254e0fa3 |
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