MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload sites and other potentially malicious domains. The PDF structure itself appears to be a lure, likely intended to exploit vulnerabilities or trick users into downloading further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 http://mwflower.com/upimagesfile///44287936537.pdf
- http://systemsbiology.at/uploads/assets/file/funupazarukasibasudo.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc2fe34a87---10005328233.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16080fc232f1a8---55954411220.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b2f73ced711---42829527111.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160a3ef1fa8d54---kuzebirowiwoxofuvakigijuf.pdf
- http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16075084034ef2---80013363344.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/n5bn0akpkphp9gjp2ad8j8ppm3/33968858328.pdf
- https://lesfeesdelhetre.fr/upload/files/9042539274.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e4a60dae8---72802239063.pdf
- https://adepotcustom.com/UploadFiles/file/20210514151234178.pdf
- https://peptidturkiye.com/ckfinder/userfiles/files/zoxedibugilotosazijevoxip.pdf
- https://congchunghadong.com/uploads/files/zawudosugadatulebutu.pdf
- https://10glazsikeyrosa.ru/file/61965909961.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/i75df7rf6r8ipg6rhb2tfdls47/favamodebigiwivudamaji.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/bcc5f5c37c7f5e28da321ad27429adc3/mumeronafolijabidav.pdf
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/fa59b88a54505a0bedd1e3a31f369870/mubamavufojiradelupete.pdf
- https://serviceservice.eu/userfiles/file/welubakirep.pdf
- http://ducthoaudio.com/upload/files/xodevenufigaxokilufegi.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8cec096de---7038759330.pdf
- http://4darchitecture.org/img/all/lisatigijaxuwufixu.pdf
- http://anhbanglaw.com/userfiles/file/pixisofekaxajinipuxafowo.pdf
- http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/14797512966.pdf
- http://biomehl.com/images/content/files/8659093160.pdf
- http://bajcsidavidfoto.com/_user/file/memivozezezomanolufizid.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=assistive+devices+program+manual
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/a3f1a20317a654d10788dd8d38ce8265/12186496686.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_off0000ec39.bin49b046d9cff38a6bb981a929d9452d583c62a41bc5d1341db5d17b6e9300f4f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC39 | 16684 bytes |
font_01_sfnt_off00011790.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11790 | 16792 bytes |
font_02_sfnt_off00012fa7.bin24ff535c004c2157527d1f7b72ea43c33b8ce4197935e58de7d232f5ec64902f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FA7 | 11004 bytes |
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