MALICIOUS
162
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. It contains embedded JavaScript and a large number of external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution campaign. The embedded JavaScript likely facilitates the redirection to these malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.6008
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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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://archism.ru/uplcv?utm_term=dientes+deciduos+pdf PDF link annotation
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/hraqai6su3l2uiapr01d73mg5m/89749961646.pdfIn PDF document text
- https://masukpt2.com/contents/files/kudunurutexilemunas.pdfIn PDF document text
- https://felicitareonline.ro/ckfinder/userfiles/files/nutefakajivodegewunukab.pdfIn PDF document text
- http://debrecen.varosom.hu/userfiles/files/44699759178.pdfIn PDF document text
- https://elpollopaulino.com/cenavarra_userfiles/files/pamiji.pdfIn PDF document text
- http://abwingsbuffalo.com/uploads/files/52856747850.pdfIn PDF document text
- https://mariellatriolo.it/public/file/jujixemaranapimid.pdfIn PDF document text
- http://capthepcongtrinh.com/uploads/news/files/rofujumuga.pdfIn PDF document text
- https://inprovitcolombia.com/ckfinder/userfiles/files/gusukobalikeb.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613644efc0e5c---8979927512.pdfIn PDF document text
- http://mastrodibaglio.it/userfiles/files/46546822886.pdfIn PDF document text
- https://ambalatender.com/upload/files/60270400713.pdfIn PDF document text
- https://nk-sostanj.si/files/file/88215183907.pdfIn PDF document text
- https://m-isc.com/userfiles/file/1797619503.pdfIn PDF document text
- http://woodwork.pl/ubezpiecz/obrazy/file/geted.pdfIn PDF document text
- https://newchat.xyz/js/ckfinder/userfiles/files/tinikapewerarokuzirotuni.pdfIn PDF document text
- http://sunway.me/ROOT_PATHuploads/file/080213238709.pdfIn PDF document text
- http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/15785616071.pdfIn PDF document text
- http://kovacsoltvaskerites.hu/images/file/sikarijoxisuvoritebuda.pdfIn PDF document text
- http://zhouzhuank.com/v15/Upload/file/202196214444172.pdfIn PDF document text
- http://tea-ra.com/user_data/upload/save_image/files/82740418839.pdfIn PDF document text
- http://rkenterprisesonline.com/FCKeditor/file/ziwiriba.pdfIn PDF document text
- https://istruttorecinofilo.it/userfiles/file/wotogitojigulotapudag.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/161352f153017b---kinubasoloroseximojirabi.pdfIn PDF document text
- http://myphamhelios.vn/luutru/files/61633688502.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b2d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2D9 | 15336 bytes |
SHA-256: f40ce81c925dc6b474dc012637930d29a11ca1cf38f09d65839790aa65f2673e |
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font_01_sfnt_off0000d86d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD86D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f084.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF084 | 10408 bytes |
SHA-256: f9b7a24e687958d6e0239ea66f588594d6205949835112cc45b14488a4f2ea1c |
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