MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a large number of embedded URLs, many of which point to compromised CMS uploads and disposable hosting. This structure strongly suggests a link farm designed to redirect users to malicious sites, likely for phishing or malware delivery. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/16135d69bd5d4a---pudoz.pdf In PDF document text
- http://kaizenlife.com/ckfinder/userfiles/files/42369062506.pdfIn PDF document text
- https://sfeerweter.nl/userfiles/files/lalipalaju.pdfIn PDF document text
- http://world-housing.jp/ckfinder/userfiles/files/linodaxumodixokesopeb.pdfIn PDF document text
- http://speckletrack.com/update/editor/file/58766908573.pdfIn PDF document text
- https://weborder.cloud/userfiles/file///66972601936.pdfIn PDF document text
- http://fitviewer.info/files/file/69007800090.pdfIn PDF document text
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/f1d9002a247e9ea63b84e140558f7db3/rejomupowusiximanumo.pdfIn PDF document text
- http://maekuangudomthara.com/ckfinder/userfiles/files/84449300033.pdfIn PDF document text
- http://dtjxbpzx.com/filespath/files/20210919030657.pdfIn PDF document text
- http://tw-echen.com/uploads/files/202109220355464916.pdfIn PDF document text
- http://sancheonglittletheaters.com/upload/userfiles/2021/09/files/210905230457.pdfIn PDF document text
- http://abwhopewell.com/uploads/files/99122429096.pdfIn PDF document text
- http://fteq.ru/files/file/37282195151.pdfIn PDF document text
- https://trouver-une-ssii.com/img/pics/files/74260303837.pdfIn PDF document text
- https://kurek-rowery.pl/user_pict/file/tarusuvakugojoninaxono.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16147fc0171742---1854044035.pdfIn PDF document text
- http://rvhifi.cz/files/file/49137622152.pdfIn PDF document text
- http://marleenjansen.nl/images/uploadfiles/muzodi.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6a3de73aa---jutubumaranuva.pdfIn PDF document text
- https://kltccompany.com/ckfinder/userfiles/files/bowifafidadegomijad.pdfIn PDF document text
- https://ladangmimpi2.com/contents/files/70439198020.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=wealth+secrets+of+the+one+percent+pdf+freePDF 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_off0000dd86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD86 | 18260 bytes |
SHA-256: c711012d041ee4c4c14ff2bf1855bee808f09de6008069920f037fb5cf5cbf65 |
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font_01_sfnt_off00010cea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CEA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012501.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12501 | 10620 bytes |
SHA-256: 7119567c3618b028181a07e258e40df5dc0833097ea908006525ad3d61cc6c98 |
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