MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains a large number of embedded URLs, many of which point to compromised WordPress sites. The ML classifier strongly indicates maliciousness, and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic confirms the presence of a link farm on disposable hosting. The document's primary function appears to be redirecting users to external, potentially malicious, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 5
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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://infrive.ru/uplcv?utm_term=owners+manual+for+frigidaire+gallery+gas+stove PDF link annotation
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076d841a7de2---63045714775.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608dafd13f4fc---milavi.pdfIn PDF document text
- http://nissanotogovap.com/uploads/images/files/56752664597.pdfIn PDF document text
- https://biogenetixpharma.com/ci/userfiles/files/wofajuzufopozimelotita.pdfIn PDF document text
- https://nhabe.com.vn/ckfinder/userfiles/files/wifozimama.pdfIn PDF document text
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160797c0bbb928---zoseradanomiwifuxilu.pdfIn PDF document text
- http://bigband-ulm.de/userfiles/files/sagidirezasotix.pdfIn PDF document text
- https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/31592489213.pdfIn PDF document text
- http://servmed.net/userfiles/file/pekebikewuwabut.pdfIn PDF document text
- http://studiotecnicomancini.eu/userfiles/files/nepiloluvevomoro.pdfIn PDF document text
- http://smolensk-bakaleya.ru/userfiles/file/70536179158.pdfIn PDF document text
- http://xn--b1adcbbai1bezln.xn--p1ai/content/File/bifapuzovosoxalo.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/h6u7v616mdfsaklfsjv9m8o95j/8689219213.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e20425ea11---filexijuvob.pdfIn PDF document text
- https://cicadit.ro/UserFiles/file/1925848001.pdfIn PDF document text
- https://proektasis.gr/admin/spaw2/uploads/files/63347664332.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16109fe6940b30---solojotedoxatufexiwizeni.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/dae49619ae506b00ff5cb2c7e867233a/47755868916.pdfIn PDF document text
- https://www.moxiclear.com.au/application/third_party/ckfinder/userfiles/files/29191959798.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/p8270aoiq97k52m236lt76t7a6/25409644903.pdfIn PDF document text
- http://www.hussco-steel.com/husscofiles/files/bofer.pdfIn PDF document text
- https://businesslife.com/content/file/febotojekijajizamonifof.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000beb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEB1 | 16640 bytes |
SHA-256: bc82fd3f7282b68c5affa04316f7b2881fef04b9e83706a0189a9d1d42639d00 |
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font_01_sfnt_off0000e9d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000101e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E7 | 11088 bytes |
SHA-256: d0b660c7a1941e52b775ad94b88c65108a6d19d6683833cf1c77a6b081e942c1 |
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