MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a non-clustered link farm on disposable hosting. No scripts were extracted, but the overall structure and URL distribution strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://flightshop.jp/images/blog//file/xuzavanifaz.pdf In PDF document text
- http://magogaralbamoble.com/galeria/files/88424769951.pdfIn PDF document text
- http://ya-ke.cn/admin/upload/27639190102.pdfIn PDF document text
- http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b9618d298---38568287436.pdfIn PDF document text
- http://chamdure.com/DATA/files/60169398806.pdfIn PDF document text
- http://nbc.com.vn/ckfinder/userfiles/files/dovoda.pdfIn PDF document text
- http://lawngo.net/fckfiles/54598638638.pdfIn PDF document text
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/f3130192679f59f565eeef2906fc6c60/81607782304.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098afd85be80---21530714707.pdfIn PDF document text
- http://energosol.pl/images_cms/file/43635147649.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c2aee737323---60386285479.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/973acab69506871d269c8189e72be274/lulukakomigirolazup.pdfIn PDF document text
- https://oklogistic.lv/upload/file/wazame.pdfIn PDF document text
- http://ever-pioneer.com/upload/files/35412747478.pdfIn PDF document text
- http://summitremodelinginc.com/userfiles/files/fupawexorevos.pdfIn PDF document text
- https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/iiaejro6rub3khmvfsj299gt4h/tebotofunaxopudisivono.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9582bb5ec---60108732113.pdfIn PDF document text
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2cab992ad058c716180af29d2590115c/moxidem.pdfIn PDF document text
- https://ladangmimpi2.com/contents//files/gukam.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee3e2e75f62---67809684722.pdfIn PDF document text
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/d743bd92fd37215ea1bfd593985641c8/nodudezazelowulene.pdfIn PDF document text
- http://tkvolley.pl/upload/files/rabolot.pdfIn PDF document text
- https://addsfly.com/userfiles/file/30137785685.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=how+to+fix+my+porter+cable+finish+nail+gunPDF 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_off0000efd2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000107e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107E4 | 16688 bytes |
SHA-256: 86d6132fab3248e7fe14a81c46f5fa63c8b892c477627f015c8c2325181c818e |
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font_02_sfnt_off00013324.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13324 | 11460 bytes |
SHA-256: 3119ac15cf7f0e940e8d42bf140f0817eef400a04b1030486454953020ffca91 |
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