MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://heyumpnd.com/userfiles/file///kiluvojaf.pdf In PDF document text
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607860c6d7b63---lelowizo.pdfIn PDF document text
- https://atkarisuli.hu/userfiles/file/fefararowekotasamapu.pdfIn PDF document text
- https://pinkrali.com/calisma2/files/uploads/17052840438.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/5f8c21f9aeef5a2cd52c687c8d38503b/80095641273.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160d7e7676495a---texajikibe.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/7uke4e7088r9robnt2i16jhslp/wozuvozeredogoreme.pdfIn PDF document text
- http://ruihuitax.com/files/file/76940602766.pdfIn PDF document text
- https://twr1115.net/files/fckeditor/file/18612520268.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/4045f61c55cc91a3ccaa67bef4d41e68/xonitewalanubifuribesew.pdfIn PDF document text
- http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/90900589708.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/hc09qbn9ggvv2h17barle80sv1/wezitimemigirepi.pdfIn PDF document text
- http://dobrejaja.com/Upload/file/rozug.pdfIn PDF document text
- https://cylinder96.ru/admin/ckfinder/userfiles/files/nitipobiwodogijis.pdfIn PDF document text
- http://stolocatering.ca/clients/874514/File/tapukaxigovene.pdfIn PDF document text
- http://interstroy96.ru/uploads/files/favizeguzawunowofigegoxav.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/8c553fe205e78ce724046d224d0b509d/69059385046.pdfIn PDF document text
- https://condominiovillage.com/userfiles/file/nanigajo.pdfIn PDF document text
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/160819b8913f50---47937594314.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16099f20b544fa---meduti.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c48347debc1---nabibutibegadolodijon.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d26359349de---guvasekux.pdfIn PDF document text
- http://myshopgroup.com/userfiles/files/filoburirizenudodifoj.pdfIn PDF document text
- http://ros.by/ckfinder/userfiles/files/ridazupedaseniji.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/be0ae51a89894a3a5dc3c816b0513446/gosovagalugobogutododoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=statistique+a+deux+variable+bac+pro+coursPDF 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_off0000fef5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF5 | 20524 bytes |
SHA-256: f583197fdbdcb73a5acbfcac6a971fb4b93fa55cb8b0e84439d6b0091fb838c3 |
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font_01_sfnt_off000132e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132E8 | 11032 bytes |
SHA-256: fc2acb32aa1a9d14caf79d04ae45280592e9df5fcf0bb85b25a6f9396bc98e3a |
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font_02_sfnt_off00014c4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14C4B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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