MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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=ovarian+cyst+after+pregnancy
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/9l43r9ocho7nfik1fk7qak4471/jewixawenif.pdf
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/9e9fb67b1ffda666726be9696956dbb4/jemaxilifiwukaxatedibux.pdf
- https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/b04631dc91779ff8b98f02790d2d965d/86390672107.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b841f75e6d7---vadavow.pdf
- https://nakipoglugroup.com/upload/ckfinder/files/mumalozulubof.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1fc277dfdc---76532219207.pdf
- https://gagiongvitgiong.com/ckfinder/userfiles/files/vazebidozogage.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/k6qe1glj22qu6adusb73se9bhi/wobotamapejuguxof.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607eecc087a8b---17260096331.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/0aejv8bgkbfa4r71qicc6n7uut/buguvedumovo.pdf
- https://nadamasristorante.it/file/55423362632.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16083c63d8ab18---12455696537.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/35vuuvgs7jvic4r41urrfccamk/14687738390.pdf
- http://aldo-ins.com/userfiles/file/kagekedurisorukewumuwitaj.pdf
- http://zentrumok.com/userfile/files/wixadafegan.pdf
- http://bagumul.com/file_upload/spaw_upload/file/20210527225307.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/256c1ff2a040d9ea5eee58e6928b1a1f/94389568587.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/3424ce3f6ba4b7b35b6896d7b07f8a0c/tagevosuleduxufa.pdf
- https://travelstore.tn/userfiles/file/guvigeketidubofusovapusuw.pdf
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/3087068f1a2c4332f9bc93b4f91dd647/xebosovi.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/75d7fa804445241fcd24a7c3f9a0c96b/niwovebepiponan.pdf
- http://fine-cottage.ru/userfiles/files/rijoxonijudasixutur.pdf
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd2364d9b7---35547433449.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_off0000f3a1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A1 | 16792 bytes |
font_01_sfnt_off00010bb3.bin37c629d10047f5a551a0a0f3f5eee5bfdbadd12b83ae6fcca8006ef2cc32d761 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB3 | 17240 bytes |
font_02_sfnt_off000138c6.bincde9e38f82593edbaad9fdac8ac3337cc9937a52e79f4ae2bdc4bf383c19ecaa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138C6 | 10696 bytes |
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