MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains numerous links pointing to compromised WordPress sites, specifically within form upload directories, suggesting a link farm designed to distribute malicious files. The ClamAV detection and ML classifier further support its malicious nature. The document body is unreadable, but the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9666
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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 http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608638e361bee---94370837772.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d32957defeb---ligomumil.pdf
- http://www.niziointerior.pl/upload/file/jevokivolokozuvugopite.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/212790e9287a46cae81edc47908ad112/dexuwasafumalizev.pdf
- http://ccsl.asia/files/xolagesiribimilutexala.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d9aa3b4b7e7---gibemakewa.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609839f3d6838---wamunedapajubojev.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27754977ee---susixeximunijalix.pdf
- http://cjatkinson.com/userimages/lokezi.pdf
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1dae7976d---dabixegufewotexe.pdf
- http://clinicaveterinariacene.com/userfiles/files/78496490752.pdf
- http://nutronicltd.com/userfiles/file/18674624731.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/8aeqrnfjmceav8hh8fo43k3e19/fiwodatogekijoxefefe.pdf
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/t98o9ffj5li9dj712g6ilila8p/zubewalatalaxisesemet.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/2510060d64c622d1feb360554f3d9314/pogixatifasowumusagamuj.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16077a8da98435---408920195.pdf
- https://agrilaui.com/userfiles/file/29287546512.pdf
- https://mmszke.hu/files/file/6071012226.pdf
- http://monkey-do.net/userfiles/file/gujodepawemipadedukufez.pdf
- https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/rpbmc8cv2iqa7m9239spvcpsjk/gibagagunisofaxekule.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/2r3ldntcn39apa6dvle08nsf78/kageteloxaf.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/bd9fdedcbdd6c3ee29ebb293ee802905/39416104721.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/fab8904ae7da3c6c5aefe55a5b745398/30831668284.pdf
- http://falconfam.com/ckfinder/userfiles/files/88448779571.pdf
- https://vestol.bg/files/file/vexojagasobowuvo.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c60db9c4e92---texufu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=isotropic+process+in+thermodynamics
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000126f4.bin041893c36a10c5d720258bd1ff630b5d2dd9b256afa162638b37cb9f4bf001d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126F4 | 19308 bytes |
font_01_sfnt_off000159c7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159C7 | 16792 bytes |
font_02_sfnt_off000171de.bind8c252be62cb8569d8f69b1ec602957e53727c42d2c0a14fc4364e66e38835cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x171DE | 10796 bytes |
font_03_sfnt_off00018a94.bin34837fdfed7e6dc9e8c1ebc45eabef1064a6e89f8cd536305124148a4af1fb29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18A94 | 16168 bytes |
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