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 disposable hosting domains. These links likely serve as a lure for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9744
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://krisoc.ru/uplcv?utm_term=libro+las+mentiras+de+mis+maestros+pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b6f30c7c61c---muvuwanerula.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fddc4da8222---lugax.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/dgkcdd1q727h3aotdbc1bkidd3/78776018861.pdf
- http://marta-galan.com/files/varios/file/39448670158.pdf
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/70dvquddg3834ff1upr3ginuki/26239052052.pdf
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160b971430bc82---loperipojikixubudezasuxiv.pdf
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/2bdf070c9bd37f436eac46538276729d/95772642179.pdf
- https://kotypsy.pl/ckfinder/userfiles/files/84277150575.pdf
- http://domosplast.hu/files/file/48127151977.pdf
- http://gloucesterclassof81.com/clients/23558/File/pupuvutavuxemisunutasu.pdf
- http://tokyosushilohaus.com/uploads/files/wukarupopob.pdf
- http://paulsaperstein.com/userfiles/files/jawonive.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608656fc17402---kafabuzarujuzaze.pdf
- http://vanhacollection.com/images/files/75531749361.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/ep3e1alt9gn2mffj27enfovo3s/tepizepigabeganokatuxo.pdf
- http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/gobuwuf.pdf
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a6486aa177b---31615696413.pdf
- https://suavitinhtannha.net/upload/files/48424620430.pdf
- http://cukierniabrzezinski.pl/www/artizam/fck/file/wuvitunekelavo.pdf
- https://masihpt2.com/contents//files/9584267078.pdf
- https://scapetime.net/images/website/user/files/56827718504.pdf
- http://libertyquad72.fr/userfiles/file/muxozaj.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/3a90b680de87f7d623dd4635bbfc5022/66619798188.pdf
- http://domholidays.com/userfiles/file/xiroduwa.pdf
- https://aydin-elektrik.com/resimler/files/vogebojulefuxivakeno.pdf
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079e6693a2b3---getixiluwutiranemugize.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e4c5.bin552ca09f4c770ce117aaa1f3988d2b239193682d20f31edfd20a5a7dde120276 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C5 | 17716 bytes |
font_01_sfnt_off000111f7.bind11bfa2b02c462a3f9075532ce7ec1132ca3691ccd6a850e0dcf0119a218c04c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F7 | 16084 bytes |
font_02_sfnt_off00012730.binc5f57ac5a5185daa15788ca50642996c1d7dd4045f5105968b9bbae432d73077 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12730 | 10756 bytes |
font_03_sfnt_off00013fad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FAD | 16792 bytes |
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