MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to compromised WordPress sites, likely intended to trick users into downloading a password-protected archive. The presence of multiple PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports the malicious intent of distributing links to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9924
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/rld8r0s7lfo3usgr2hbi7rn573/mopikonifirufuwimu.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/3f745733ed72b37dd5fd587611074051/17747130103.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606efcded3196---dadajipavonovebax.pdf
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/4eb7cdfe57af92703db8e0a021ad5eb3/17086712294.pdf
- http://pastoret.it/userfiles/files/16461088008.pdf
- http://dichvuhieuchuan.com/upload/files/35518315980.pdf
- http://feynburg-uhren.de/uploads/togovavojuxurago.pdf
- http://prunay-en-yvelines.fr/ckfinder/userfiles/files/pidanalalunorupudufagaw.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d9f23ae50---53475874041.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/55362ef5e457312ad3ab163fddb9aca5/bapuribagafadiseviba.pdf
- https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/c0a1bb8c0962f1252b3e1326b0e2c8e8/lelozepigogavo.pdf
- https://ewdel.cz/ckfinder/userfiles/files/60768333052.pdf
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16098a3e2d3d72---26775478648.pdf
- http://naturallabs.de/userfiles/file/dogerebexepaki.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160a759ce68470---9513935910.pdf
- http://baybayankaauamo.com/clients/c/c9/c9e0f772d4a556598cfa564a27137582/File/xewajexopef.pdf
- http://ahdongjiu.com/upload_fck/file/2021-4-29/20210429210900459930.pdf
- http://v-lukomorie.com/uploader/files/xufuxuligomibibovojo.pdf
- http://rallyteamwalraven.nl/file/16286711563.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608471f86276b---21747865083.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4dc12a75b---xoxinemedagopisojomutu.pdf
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16089765c2caf7---keravilabivusubitegakar.pdf
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16080fa9a97532---manewimoronufibazisuguga.pdf
- https://atlastoursntravels.com/userfiles/file/16308145624.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=pdf+expert+forms
- 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_off0000ed41.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED41 | 16792 bytes |
font_01_sfnt_off00010552.bin5cd8a120e106fc2d4fc1855603a636a3ce922decfb1b4d98f17a4a5450337c58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10552 | 16344 bytes |
font_02_sfnt_off00011b4c.binb1abb71bb71295547eb180b1497c836f19bb3db876bf12356f23026856a3201d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B4C | 10356 bytes |
font_03_sfnt_off000132c0.bind48e968995b122c2518670308c28d9d5308360274b4b1863e3a1e667f59a749c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132C0 | 17788 bytes |
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