MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9888
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://terezmisszio.eu/files/file/88295722610.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16071aef8acfe2---44736532541.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/8pn8avmqfr4a1nm2970a3ipoj6/21051341324.pdf
- http://matchedtubes.de/userfiles/file/76872422098.pdf
- https://ketdoanbus.com/webroot/img/files/tenapupasafugexowetulax.pdf
- http://webelievedin1984.com/clients/6/67/676624d6593aa512bfa6e10e765af00e/File/19010383438.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/716589peoiqke1acrdr9ni6h30/rowot.pdf
- http://meble-tk.pl/userfiles/file/satavevutiwazalu.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/f0fc07c009b5c742072ed25b31ae99f4/1669588118.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/hecj7nbcfi3cq86dl6ne4en7en/983915893.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/3i7vbkn00v0q1k4jpcm9gjvhi7/midavuwa.pdf
- https://boucherienabli.com/uploads/FCK_files/file/zabudutonikipobutanuk.pdf
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/oc9mg5tbdh2h84nuc3pnrv1ek3/wuper.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/c197949485e8bc2f626f4b23df8cfa0f/53536593394.pdf
- http://termocity.by/pics/files/22372412823.pdf
- https://binarbaidservices.com/public_html/userfiles/file/49704057795.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/h5deu7u526epg5sbeofshmgel5/49102182704.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160c18f711ccad---43659732403.pdf
- https://skyzoan.com/cake/beta/userfiles/file/gamew.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfb2ce5a13---93061602279.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160820d0a1e49b---71392227998.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/o9aiqnbi7pndn76cd3r275p50p/65215651715.pdf
- http://ayurveda-shiatsu-nice.com/upload/files/57204447357.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=css+cell+background+color
- 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_off0000e742.bin79ce5eccb645023c00a09325e9a7db9e3fa57b8ee832e5a4086c31ca759738cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE742 | 29296 bytes |
font_01_sfnt_off00013866.bin38ceb6d9b3febb5d126a0bb8ff3d3a69fc52923b0e2fd1ada8ed2d85a09e0889 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13866 | 10720 bytes |
font_02_sfnt_off000150f6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150F6 | 16792 bytes |
font_03_sfnt_off00016908.bin5d2c405b8d6d94a18525c06fc37e8c77bc5d0690c7915478ee91c6cd66f7ec6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16908 | 17620 bytes |
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