MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised WordPress installations or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics indicate an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://crysiq.ru/uplcv?utm_term=also+a+conjunction
- http://porpora.eu/imagenes/imagenes_contenidos///63225075132.pdf
- http://fedoro.ru/upload/file/60247024691.pdf
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/vnullqhtuc8dkcmc5i46rtp9e0/91535789017.pdf
- http://a-mega.ua/images/uploads/file/12561553914.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2233f22e66---befiwatogomijufe.pdf
- https://dejavuruse.com/userfiles/file/98847742871.pdf
- http://bbbswalkforkids.com/clients/c/cf/cf8d0549bdc9bbdffca8bc0db9808b96/File/nugiwawujur.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/0b85ffa41dc1b00fc0db19899f47a37f/nideduzuwagap.pdf
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/c578b606039c3f00140698d42a612b3f/46453395228.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b3ba422b8---wekad.pdf
- http://sztarmedia.hu/_user/file/kafasibizowirosegaja.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16089d379cb84f---favakiwora.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607153fff1fbf---vozopofipojenu.pdf
- https://accesoriosalmayor.com/images/userfiles/file/79202687479.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160797f1e881e8---43108516041.pdf
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160842359e8220---wawedesadovanixebunipid.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/e33faa4e9240d8d66d485ef4edda7ee8/kesafipeluxagi.pdf
- http://tremonttemplemacon.com/clients/862779/File/38736718125.pdf
- http://christschoolblr.in/userfiles/file/59844118469.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/daca1cbc8d6ae066773f0d408919aaf3/domagadu.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed1c3d4cb8---76889135883.pdf
- https://smilepaper.tw/archive/upload/files/vasomuwuzakuwunukufos.pdf
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094676a15c03---24147166575.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_off0000f8c9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C9 | 16792 bytes |
font_01_sfnt_off000110db.bin030f958f620bdec3c807564b090c0b87f7ac94ad023a21c6cb05a6b72aa288a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110DB | 17336 bytes |
font_02_sfnt_off00013dc6.binf3499429a35ac1fc3c895de0bb2834820bdd91a2c21f3a849aabfb58aecb3ceb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DC6 | 10200 bytes |
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