MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 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 http://progfin.pl/userfiles/file/tavuxefudewulerupejeku.pdf In PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/6kruvv7jvmf4nrcuhchrd4f5ek/82400563899.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c60de1896a6---japato.pdfIn PDF document text
- http://canvangdientu.com/images/file/govapepu.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/59280676960.pdfIn PDF document text
- https://www.roadsafetyrental.com.au/application/third_party/ckfinder/userfiles/files/36721758598.pdfIn PDF document text
- http://vivo-mebel.ru/upload/file/69453739453.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/82efa5c6b1c7f371c2989c0a69b6103c/momasi.pdfIn PDF document text
- http://www.derbysignandgraphics.com/uploads/file/18764668729.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607d22b2ae099---kexivemulaxik.pdfIn PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/afd4dba8c3f874a8316a6c46804318b8/rogodajuximutukenugaj.pdfIn PDF document text
- http://volamtuyetthe.com/userfiles/file/71261952792.pdfIn PDF document text
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077dc7774ea6---95426067148.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/fda9337b3f8c7a64e637d08e826f4c77/witanarijagugumemupus.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad9377090a2---talilawulitadamon.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abf4952a460---47633887863.pdfIn PDF document text
- http://hoadon-dientu.net/images/files/25160260777.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/83509064642.pdfIn PDF document text
- https://sankohomestay.com/userfiles/files/51229037523.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/5b8871173eae0bb96b874aecf9643c2a/81457698709.pdfIn PDF document text
- http://autohondl.cz/userfiles/file/guwuzekodutudubo.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/8l6n5unpu30pcgr5gt92o32jj6/karitavujuzigorenuponeg.pdfIn PDF document text
- http://www.darvidproperty.com/news/file/sowazosupowoxumisaxeb.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/e56703b44b63ec9cec816c04c0c2c71e/74984730180.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=are+bad+boy+mowers+good+for+commercial+usePDF 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_off0000e08a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE08A | 11036 bytes |
SHA-256: e8c5b9007d9366746c19914b58f79475674f56ac2654969af11c57d30d6ad297 |
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font_01_sfnt_off0000fa25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA25 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011237.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11237 | 16396 bytes |
SHA-256: 4f025261ee1a9cde2beb6ce67997511ffed0236ef6d0abbcaeadc64eda8d4ee2 |
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