MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document impersonates Amazon and uses a "Download Now" call-to-action to trick users into clicking a malicious link. The document contains numerous links to external URLs, many of which point to compromised WordPress upload directories, suggesting a phishing or credential harvesting campaign. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 8
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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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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://medvor.ru/uplcv?utm_term=holt+mcdougal+geometry+online+textbook+pdf.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://medvor.ru/uplcv?utm_term=holt+mcdougal+geometry+online+textbook+pdf PDF link annotation
- https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/vu6dvr6mstvh4k158oe0n2ucgg/saxisegukigewisuwab.pdfIn PDF document text
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/10ab127854ce20d7e2002afc5e97b5a9/durususarozevidagineron.pdfIn PDF document text
- https://activsport.ro/userfiles/file/86315620918.pdfIn PDF document text
- https://mclandpin.com/calisma2/files/uploads/36815846366.pdfIn PDF document text
- http://armanetti.com/images/86503256180.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f966d64c8---paraxebalilafibigu.pdfIn PDF document text
- https://greenvalleykerala.com/ckfinder/userfiles/files/22220285479.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/5242239c9cdd4f4e571c41e5faef0260/71111769632.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1608b07bb96526---60467795201.pdfIn PDF document text
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/e655bd3c932525a569f6b47f25eeb3da/levazador.pdfIn PDF document text
- http://totaldeliverancecathedralchurch.com/clients/2/22/22dae496a1749ae881e6bee195142b05/File/4853128188.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c9d70a9fbe---jexomusoviwo.pdfIn PDF document text
- http://paillasse.hu/userfiles/file/ditux.pdfIn PDF document text
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/4602cb1b38f7430f1c67602b0779f9ff/tinewefasukafiwadiraxut.pdfIn PDF document text
- http://footstepfloor.com/upfiles/files/4227978408.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a6e45013a---73073667636.pdfIn PDF document text
- https://louvre.lv/res/wysiwyg/file/dujadegoxonoxexesulodib.pdfIn PDF document text
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/1a2dde7f191b8f8924c647e7ee502010/23454156330.pdfIn PDF document text
- http://strandedtattoo.net/file/vulegiwenar.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/06ss78uu549iudqm6uqlkaa5f4/fiwisuvekete.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa7b070b95a---7866739882.pdfIn PDF document text
- https://fanaf.comarticle_ressources/file/59500267361.pdfIn PDF document text
- https://bda.ch/ckfinder/userfiles/files/1198987260.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/d07bae535a9b6c97732dc969f2120201/nimopatobuvedezewaxes.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16086435d6cdf0---58767751735.pdfIn PDF document text
- 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 |
|---|---|---|---|
font_00_sfnt_off00011f9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F9B | 18476 bytes |
SHA-256: b2d7e7cd5c84e8f4c5b65b46d8f25afeddf3fcbab78c02b366d0dcf7300bb1f2 |
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font_01_sfnt_off0001509b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1509B | 11336 bytes |
SHA-256: fd7a857534a5df2938ac2ab93cfc5f286dd6982bdc25f9398b503a18fb5e1391 |
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font_02_sfnt_off00016ad6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16AD6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off000182e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x182E3 | 2068 bytes |
SHA-256: bcee9314aa15d496f77c203a91baa8b73390734097cf69cd893be0c80331aa16 |
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