MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous links to compromised websites, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple distinct hosts and the use of 'utm_term' parameters in URLs point towards a coordinated effort to lure victims.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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://pixomot.ru/uplcv?utm_term=enthalpy+of+a+compound+is+equal+to+its PDF link annotation
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160dbc6116b4df---96707545727.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/ksut5mm4aoalui2vqaqf9ub6i2/larovinubevutisuk.pdfIn PDF document text
- https://tongdaidoanhnghiep.com/app/webroot/upload/files/64010766379.pdfIn PDF document text
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607be190e2580---pivejorupinogazarux.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/powasububoxire.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607129a834873---jobada.pdfIn PDF document text
- http://phonphangschool.com/upload/files/nerubixosuzenepoziloso.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c25e24ac2---bezujavifovenujumawe.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/1qajd29h27rlqfpu2diod4s7r5/nexoputabiku.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087c9feb60a6---wuzeliku.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160869201d5ee6---ludisaragepuge.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/e476422fbcabdac83f68027c5b4cfab5/gorudoto.pdfIn PDF document text
- https://ascend.sut.ac.th/ce/2017/src/plugins/ckfinder/userfiles/files/kuwewivumudarewaxeserivum.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160e024d6612be---86145572096.pdfIn PDF document text
- http://sieuthibongda.net/ckfinder/userfiles/files/pufilevisabom.pdfIn PDF document text
- https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/74225f8da685552e1f0cf5d68e5b8c0d/livikijevo.pdfIn PDF document text
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/tewinunitub.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081b37c15ab0---75018674110.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c67848911f8---33302064182.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16088ecfa542f4---62492972681.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/tukezufebibuwasujeve.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cb19494f4b3---diviforopefudelobotu.pdfIn PDF document text
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/80757061725.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a0b8bc415bf---65756475207.pdfIn PDF document text
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092f21757513---23939925513.pdfIn PDF document text
- 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_off0000e4a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4A1 | 11128 bytes |
SHA-256: 2f11e6c4c2ce3f2dbe5976f008aa363b0d2ff78e4e1f6ae3ece4f86e60f3da14 |
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font_01_sfnt_off0000fe2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2C | 17364 bytes |
SHA-256: 0525479e412da402afc591321a672a89cbbc54819b67939768c70020abc3f229 |
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font_02_sfnt_off00012bfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BFC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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