MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. Although no scripts were explicitly extracted, the structure and URL patterns are consistent with a malicious PDF designed to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9928
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://philabc.ru/uplcv?utm_term=x+chromosome+is+metacentric
- https://digireg.cn/upload/12816917463.pdf
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/7cff03c7ba9092bb4af23faf91195ab5/39034507305.pdf
- https://thietbivesinhanhhuy.com/asset/files/nomoribisa.pdf
- http://xpressup.com/userfiles/file/61153351637.pdf
- http://progfin.pl/userfiles/file/59139960045.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a105387c921---mupizezezaxefuse.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b254f6b55ad---83374136361.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c181d2b5bdf---farit.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/020f42b450e95a18483d7256891480ba/danijazafitimigamikorujux.pdf
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16082fc648bdb2---15474179152.pdf
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/16ab39b0305301d74431eb9806ead6cc/57759442954.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160cbada3464e2---gomipufuwama.pdf
- http://szkolaprywatnaleszno.pl/userfiles/file/67426069313.pdf
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bba3d7bb838---tagosi.pdf
- https://papiratisk.cz/soubory/63968856523.pdf
- http://nbpcpentecostalchurch.com/clients/65183/File/82044902524.pdf
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/c2a14aafc8b96d9af0e21f9e16834f01/24887037111.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ba3f13432---wofunisitusariv.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/eeca99ef80d7feedadb9886482a251f9/23955701170.pdf
- https://atpl.aero/ckfinder/userfiles/files/mawemanerot.pdf
- https://dursunguney.com/userfiles/files/zegefawa.pdf
- http://crackershrimp.com/file_media/file_image/file/79672512089.pdf
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/58e101be6f9179aa29f506760079d2e5/57322553774.pdf
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/9aiov4tb5ohbt0fj0ri3vm07ak/82339969536.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_off000121bc.bin0993d5451a020c4ca6d410fdaf098e0bf357bc197dbc039a624e0a9f1c4b9bdc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121BC | 17684 bytes |
font_01_sfnt_off0001502f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1502F | 16792 bytes |
font_02_sfnt_off00016846.binb93291ae720ae0a99cd85aa98db616bd68f8e7e8b724016ce5b763e5a541f8a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16846 | 10456 bytes |
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