MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a machine learning classifier and ClamAV detection. It contains a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of external URIs and a high ML score indicate a strong likelihood of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://catamma.ru/uplcv?utm_term=clean+up+my+phone+storage PDF link annotation
- http://bbbo.handyfriendship.com/upload/files/tagopog.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/16305842501439.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/4h6ri2al83ipgb8hhhjc2godck/45049967333.pdfIn PDF document text
- https://brothers-music.com/ckfinder/userfiles/files/suganu.pdfIn PDF document text
- http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/25028115040.pdfIn PDF document text
- http://koreanhotpot.com/uploads/files/6466084056.pdfIn PDF document text
- https://macronew.com/upload/files/78843326118.pdfIn PDF document text
- https://aarhuskortet.dk/images/file/23116251542.pdfIn PDF document text
- https://itracmediav5.com/ckfinder/userfiles/files/rugibuvifususag.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141cb3994534---71539039579.pdfIn PDF document text
- https://hinodecoder.com/userfiles/file/78113812263.pdfIn PDF document text
- https://insolite.lu/img/userfiles/files/12671285669.pdfIn PDF document text
- http://clairerolo.com/userfiles/file/gemitirimerubazupoxapileg.pdfIn PDF document text
- https://anmoul.com/userfiles/file/laligitimojikoluke.pdfIn PDF document text
- http://micdelhi.in/userfiles/file/52728845280.pdfIn PDF document text
- https://dialogueinpraxis.net/files/docs/95643410403.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161388283a11c5---pedur.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/95900835915.pdfIn PDF document text
- https://lentes123.com/aym_image/files/8383273409.pdfIn PDF document text
- http://abwjefferson.com/uploads/files/foforibop.pdfIn PDF document text
- http://avvocato-callegaro.it/public/file/33063182638.pdfIn PDF document text
- https://commonlawhouse.in/userfiles/file/gugevadizemevexi.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_off0000e477.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE477 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC8E | 10852 bytes |
SHA-256: b90fce259cdf40a5ea394c7dec3e5cd47a35705a28987770ff867432a1d80187 |
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font_02_sfnt_off0001157f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1157F | 18884 bytes |
SHA-256: ea10c1b3544b6b6d0fcb02dbd28cf8200a931ee8de12ea2a7d1ba460a2fe8050 |
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