MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites and potentially disposable hosting domains. The embedded URLs, such as 'https://irlanc.ru/uplcv?utm_term=a+country+doctor%27s+notebook', are likely used to distribute phishing content or further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9829
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 https://irlanc.ru/uplcv?utm_term=a+country+doctor%27s+notebook
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160724cd10c188---49480729828.pdf
- http://angelescare.com/userfiles/file/kizukawepevovizawape.pdf
- http://blueyee.com/upload/file/152223594984.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/79b83d983d8f19fabb4d8f7eecc0735f/767578991.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d229a2d968---3359249003.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ecb12f7a0---8300578726.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c5d8188b3---38873845353.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160c69987e30d0---32520208401.pdf
- http://webbuilders.com/files/file/70810116614.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/6e5a22c3680feb33c182e4a8fb7cc7f1/wukikebodupep.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d6becd6ca79---pajefazusudonigasikivabon.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6e7f90b9cd---zifujogemebe.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075dc061bc4b---38506767059.pdf
- http://constantemail.com/userfiles/file/162268445763800672032.pdf
- http://jyotiacademicpress.org/uploads/file/vofelinejodixo.pdf
- http://tencanpowder.com/d/files/12198530665.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608c2f3313e54---zikotodadasaw.pdf
- http://jikaramen.com/uploads/files/wozuginoxusitozegu.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6d2ab0143---21954136657.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16078fbc0314bb---nizavigibataxibujuduzu.pdf
- http://aylincinarli.com/fckfiles/file/95731454462.pdf
- http://www.specemc.ru/upload/files/29376069801.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072d98f1942d---99344702624.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160a001753d63a---fasavadoxode.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/b18924e2b41871472ae7e7bd7b828b0f/kibezobiwuredunesopaniteb.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d9df66cd3---pitufekagifazozu.pdf
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cbc0.bin54e8427c3262f3df25b0f87ef6536e63756793c657a4eb2f2c5507bc3f9bca9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBC0 | 17336 bytes |
font_01_sfnt_off0000f92a.bin164d625a670605625862240e5610c33673ceabc8126d00c0af6fa0146dc85f9e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF92A | 10524 bytes |
font_02_sfnt_off0001116c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1116C | 16792 bytes |
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