MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically phishing or trojan delivery. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of multiple compromised domains is a strong indicator of a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160862598625ab---luragotiritirolijibibasov.pdf In PDF document text
- https://houstoncoinclub.org/FCKeditor/file/revabanuketu.pdfIn PDF document text
- https://walkandsmile.com/userfiles/file/34419928860.pdfIn PDF document text
- http://reklama-v-sochi.com/ckfinder/userfiles/files/45398117586.pdfIn PDF document text
- http://travelci.ru/ckfinder/userfiles/files/65659910802.pdfIn PDF document text
- http://xn--xhq021fvrwdth.com/d/files/6223886933.pdfIn PDF document text
- http://designbeginnings.com/upload/file/bavij.pdfIn PDF document text
- http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/dezibawebexokasekalipabu.pdfIn PDF document text
- http://unstitchedfootwear.net/files/file/xiwuzunuwus.pdfIn PDF document text
- http://clubmaniacr.com/campannas/file/tujoxokuwudewafajufa.pdfIn PDF document text
- https://ikomsolutions.com/admin/userfiles/file/90807837542.pdfIn PDF document text
- http://southfieldhigh1973.com/clients/2/27/27a5067865c8334ad4a5a1fd7642c928/File/tuvijokowijuxonavaxokoxe.pdfIn PDF document text
- http://xn--aknmedical-yub.com/uploads/file/dofurune.pdfIn PDF document text
- https://bloomland.com/sites/bloomland.com/files/binipilumubegalaf.pdfIn PDF document text
- https://eqonetech.com/upload/userfiles/files/vujugotoxeselimate.pdfIn PDF document text
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/0q9afc2sv4hau3370jusutvinv/39509231207.pdfIn PDF document text
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/tmqcj5ulojcnguk3r6c2crhjpp/5015300867.pdfIn PDF document text
- https://andana.us/files/files/41207311602.pdfIn PDF document text
- http://munnarinfo.in/userfiles/file/63466696997.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16084cf89cb783---wivipepimi.pdfIn PDF document text
- https://branchennachweis.eu/userfiles/file/69093758970.pdfIn PDF document text
- http://zamdq.com/filespath/files/20210810164729.pdfIn PDF document text
- http://poltinik.ru/userfiles/file/minebarosevisutan.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160826b7aeecfa---9209493651.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=adenitis+mesenterica+aguda+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_off0000d5d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5D6 | 17052 bytes |
SHA-256: b56e4fbcf0cd6070833fa6f1ba196d39d0c21b68f1805550812e4a1564709459 |
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font_01_sfnt_off00010193.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10193 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000119aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119AA | 10876 bytes |
SHA-256: b771c698ee26c2dc428a8450c967ce748e112e544aa72deb50c6265d3b527efa |
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