MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains numerous links, many pointing to compromised websites or disposable hosting, suggesting a link farm used for phishing or malware distribution. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://yule-sign.com/upload/editor/file/20210606175400.pdf In PDF document text
- http://3suntech.com/UploadFile/file/20210613083626903.pdfIn PDF document text
- https://mmszke.hu/files/file/miturubone.pdfIn PDF document text
- http://pivotal-technologies.com/userfiles/file/gapefidorakixakopexa.pdfIn PDF document text
- http://whsclass1968.com/clients/f/f8/f849445bb2fb8f42e7c863050dc1ba38/File/16940922919.pdfIn PDF document text
- http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/59718851076.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/bijibasokuxoriligites.pdfIn PDF document text
- https://lienlacanien.com/img_pages/file/21659603125.pdfIn PDF document text
- https://badanie-wody.pl/galeria/file/93129390328.pdfIn PDF document text
- https://girilawfirm.com/content_files/files/73506558728.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/40320691571.pdfIn PDF document text
- https://hotelmitrutarija.com/uploaded/files/42748850817.pdfIn PDF document text
- https://hanomanberjaya.com/contents//files/47370778410.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a8bb53b0b09---21662857684.pdfIn PDF document text
- http://ominocoibaffi.it/userfiles/files/sopobogig.pdfIn PDF document text
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/9b7d22c9fbd4936b4e6ff5d0cca45375/voxegogemowamemiram.pdfIn PDF document text
- http://guoyangmoju.com/userfiles/files/5854855299.pdfIn PDF document text
- https://vidaleve.net/ckfinder/userfiles/files/69872176935.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c1454329044---23718373860.pdfIn PDF document text
- https://108pizza.pl/uploads/userfiles/files/29159798989.pdfIn PDF document text
- https://seltec.io/images/uploads/files/lipevulubanotomi.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fca3e883099---47184820628.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=telefono+yealink+t21p+e2+manualPDF 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_off0000d364.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD364 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB7B | 10692 bytes |
SHA-256: 1a3fd349e2867ebc7229fb4e67df963617d60e08b8e84476bbe30e9db4456836 |
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font_02_sfnt_off0001041f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1041F | 17568 bytes |
SHA-256: c12ae17a13b272d1f529da717ce6d2cbe7bbbd1f7c04fa8c10547b1fad2bfd26 |
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