MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to compromised WordPress sites and disposable hosting, suggesting it's part of a link farm designed to host malicious content. The 'SE_CALLBACK_LURE' heuristic indicates the document's content is intended to trick users into calling a phone number, a common tactic in tech-support scams or callback phishing. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely involving the exploitation of PDF vulnerabilities to deliver a payload or redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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 http://kstarsmall.net/userfiles/file///dotirikexamalulorozapir.pdf
- http://gloucesterclassof81.com/clients/23558/File/ludagofe.pdf
- http://ridendo.cz/files/file/18521595259.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad0437ed74---zeduposozoti.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607185e3f0af0---97849126158.pdf
- http://peusch.lu/userfiles/files/73806892834.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160e64b1fc8d54---32070810155.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/015839d736926a24981b03c6d08d8a05/52212558880.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/tomqsl0rp1o8bptor1ti65el7f/bexofekotolokebeforegibod.pdf
- https://daaeportrett.no/upload/file/91197902500.pdf
- http://beloezoloto.ru/userfiles/file/rawotoradajuwemixidamo.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/5mna5t2ti9301ekc5bvo6h9que/53157521321.pdf
- https://bk.knu.ac.kr/ckfinder/userfiles/files/34522172123.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/29b875c11cf6b6127eb9552202a30359/17774910750.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e8f05175c---faroxofitoduvorekox.pdf
- https://mttrasportisrl.it/dati/upload/file/pipufo.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607faed65bb0c---pitekisoxevotoneluzofufim.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f80ba120ed---roxedanuwaxaludowom.pdf
- http://emotionpicturesfestival.gr/userfiles/file/20936342061.pdf
- http://fatamorgana.fr/uploads/assets/file/59396328109.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16076c4542617c---nexotuseratenikidinarutu.pdf
- https://lapalettedesarts.fr/gestion/file/paxutasawib.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/175ce2ed67b657de6b36a7caf7fc70d0/34293455048.pdf
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/trjphubdr07p0ae4a42im2jjm1/nadomemodubeb.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/4bffc8990c1b5175bcad488c754f4b1f/60324396132.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=right+behind+you+10+hours
- 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_off0000ed1a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED1A | 16792 bytes |
font_01_sfnt_off0001052c.binfd9073356f7999d24dc310db20a367d19524fea6fb87d34222846d55ce14c272 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1052C | 16556 bytes |
font_02_sfnt_off0001303e.bin0f6776c5b67e580a3b772baf433823d0aba3a4cbd097dc10365619ad53a2a8fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1303E | 10892 bytes |
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