MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs that point to compromised CMS upload storage and disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to external, potentially malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/v712sgqkqcbmfeks8g2ag0ea0r/12981318337.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dfda2ac292---58295786510.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ks8b2j5jrmo79cdcto52oqo951/zonulegodomat.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c93883db6---forewoxufetuvato.pdf
- https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/861425cedbebc3d3905529a28a37edba/72074103826.pdf
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/pmbphfmvhbrmd9j2005umevb7p/lusedufugusa.pdf
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/7d73de59205c08bafc111253c22d6b9a/vatonefepu.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-5-12/20210512005134167897.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/17feebe36a3fe4aaaa9bd9f5dd749c97/69528536435.pdf
- http://ediliziaunoaventi.com/userfiles/files/fafirofikonow.pdf
- http://denprokhorov.ru/images/file/85914423042.pdf
- http://svaz-podnikani.cz/files/file/22741548459.pdf
- http://niezapominajkowo.eu/userfiles/file/gemodagufiselolosun.pdf
- https://bestrecycledautoparts.net/images_i/file/zesumokeninedutizigalono.pdf
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/11945753327.pdf
- https://noddy.nu/images/file/1406859694.pdf
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/c5a82dc8a432ede1841b99a84b2ea781/45491192371.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4733c92942---gejugejadumujurutefajone.pdf
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f93fd58e94---jesujegadezurifojatojage.pdf
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/7go7dc531fuloim8ffs33vtunu/dibatofif.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bee63b765d6---24968729598.pdf
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/eonq2s2qtoshldv0d5umtqm537/zibalejupofir.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a28a7a2173---wamot.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=cats+dogs+paws+unite
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000106f4.bin5a956e461dc1166f8d2ce907cc14f0eff206fa00a721952d761c6c364259f10e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106F4 | 10636 bytes |
font_01_sfnt_off00011f53.bina9f4d1d41b7c075891181e269a24e8c289089bbb71fe8fddd863af7473f23700 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F53 | 16844 bytes |
font_02_sfnt_off00014b2d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B2D | 16792 bytes |
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