MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution campaign. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, pointing to an attempt to direct users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9708
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d07de27a5e---19782102355.pdf In PDF document text
- http://www.bufolari.com/public/immagini/file/25971575911.pdfIn PDF document text
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aec74322005---desomodabama.pdfIn PDF document text
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/22a6384f194decbcc2c7789e390bec18/gizonuvuvifiji.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/3165f407b169de51a96aee8d82b45db1/xumedeb.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac79c549c0f---171055574.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/37140129830.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/i70rvam7v4d0eknljft5d1bdp1/juxufalefosidorokide.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/33b758c01e75625f36eb04876dd60cfe/kirazod.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/iv7fu2igm7nl26idt7pgibpac4/nunesezoduvabolobe.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/eg4m1fd7g39fncmtds985l6p57/figoxiduxudidiwoxajunozo.pdfIn PDF document text
- http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607876a2db04a---91638166607.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1609e6da565ab6---kuvukerabo.pdfIn PDF document text
- http://mfcwestenkwartier.nl/beta/userfiles/file/kopakak.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/ej7d9s6trj8bpb065khhpem3g7/davudesexafodu.pdfIn PDF document text
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/ucbqokc612ldhtjeo862p76f67/77831793158.pdfIn PDF document text
- http://fly.no1-yes.com/userfiles/file/93191660845.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16090963735075---60247061723.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/b1h5qu4es7ut3bonpv57nakvok/59928885891.pdfIn PDF document text
- http://asokmontridental.com/userfiles/file/goriximisedigenaliko.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d524ae3ba96---tofememasusimobukuwan.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9ac4aa21e3---xifusanitisobafuduxibud.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/tijikapobafivu.pdfIn PDF document text
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086eb44d234a---reduleviganedipupudedor.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=action+pack+11+student+book+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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off0001f1b5.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1F1B5 | 33888 bytes |
SHA-256: d2e1cc5d7360f9bef4a1358910066a5d4a34fc7260fe019e9d34883ef1214dc1 |
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font_00_sfnt_off00018eaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18EAA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001a6bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A6BC | 18932 bytes |
SHA-256: 0e439d68ff1e721c8abcbce21c278e91d0e172eb049f8858d86299cbf0dd29f3 |
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font_02_sfnt_off0001d8b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D8B7 | 10832 bytes |
SHA-256: 287665ee44ed3bb37401a04808f665aabb0e9e44f8976cfc5d80aa0ccdc321ee |
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