MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Static analysis revealed it functions as a link farm, with numerous URLs pointing to compromised WordPress sites. These links likely serve to distribute further malicious content or engage in SEO spam.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d889d7d2684---51185489186.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/2r21ljjqc7ud8p2an1sa7rhbp7/sozenizitufojuxikalawape.pdf
- http://decamiones.com/userfiles/file/78435305213.pdf
- http://didula.com/img/file/ripefib.pdf
- http://jhferry.com/data/fckeditor/file///dezirigokoxezubiwajedibi.pdf
- https://papersacksfactory.ae/images/bulk_images/files/vaxap.pdf
- https://baohohoanglong.com/userfiles/file/13460511294.pdf
- http://kondicionery-ivanteevka.ru/upload_picture/file/rujejujotu.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab49eada31---guwaku.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/6bd03d5478ffae868085a9f4ad133369/tojekaradefujo.pdf
- http://buddhavehicle.com/userfiles/file/27278445556.pdf
- http://hanart21.com/files/userfiles/file/66716638779.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c56ee37fc9e---semuruku.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b4bc5254c2---veweza.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/uu9hnfho76ok7600cd5uc0v69e/dirirokusasu.pdf
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc290553be---56191508770.pdf
- https://supermagnum-bg.com/userfiles/file/fobojufanuviz.pdf
- http://budoprojekt.eu/obrazy/file/molojulodadam.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16080cb0ba0ec9---88251578170.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/o2b2784g11ofkiu7t607pjjuot/dopedalugisirupitemiseje.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080defe4cf19---98579949927.pdf
- http://www.chubsorn.com/file/files/tubado.pdf
- http://msslink.ru/userfiles/files/73088284417.pdf
- https://twr1115.net/files/fckeditor/file/wagevofe.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160850d6b028c7---1245460166.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=the+woman+warrior+white+tigers
- 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_off0000ec73.bina9b3ba6257e37b2bc7452b9e4450d0b15f1ca91f3b057a9b25d98d7c2f4d82a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC73 | 10556 bytes |
font_01_sfnt_off0001046c.binb728cc1269bc2e1347752c9abae64cd730dccf77be00f58f38c77a69c500c6f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1046C | 16424 bytes |
font_02_sfnt_off00012f25.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F25 | 16792 bytes |
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