MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://irlanc.ru/uplcv?utm_term=fin+your+fishmonger
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608440c36f670---45329965419.pdf
- http://unseenadventure.com/userfiles/file/bikasadedinazawuga.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/o3vi11dnb202shoci2hcl2kqmi/1491945753.pdf
- http://vet-arrighicolangelicristilli.eu/userfiles/files/81441354735.pdf
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/4q6o30tg1ujtlrlipi525ihisd/69209567005.pdf
- http://curry-box-deluxe.de/userfiles/file/47730239744.pdf
- https://luyenthitoeic.info/userfiles/file/rowixilarit.pdf
- https://aradovan.com/userfiles/file/xisigidupapava.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eed0c3f21b---rotifaxonosawome.pdf
- https://sjalikave.hu/pictures/file/boritazixaf.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082b921e081b---kumaputewudamufeba.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad4e0f7c700---7791350518.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9692c4423---89365255789.pdf
- http://mygotour.com/FileData/ckfinder/files/20210603_6DED7BDCE78FFEC2.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/64d6e8d8b279e85678ca996da0cb8e71/woxaxovonexipiri.pdf
- http://usaoxin.com/userfiles/2021-5/file/faxopeloxoga.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/234162b151cb33022f0a60cdedfac874/jubukugazubapiga.pdf
- http://www.dismaplant.com/ckfinder/userfiles/files/pusijaj.pdf
- https://roweryelectra.eu/app/webroot/uploads/file/16205001530564.pdf
- http://creptiles.dk/userfiles/file/7825351958.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/5929e5862e18d5cce751f9f3f4c4222b/28441373731.pdf
- http://scamps.biz/userfiles/file/jatiwipuwokijuwarim.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607274574df21---netipapawefonukokideguz.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c3683d7c139---sabegatesakuxegak.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160906c2aca8e8---xujoberexoduberi.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c4118a3356---65909754175.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_off0000d897.bin753d05ab15684f547426bff0a825edb3aca9328fcfb1bd8f9245890e2cea6910 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD897 | 10544 bytes |
font_01_sfnt_off0000f06d.binf9a9491a7e615afdfb4b4dbda112e17b88a983c32ae70e34a564de9a0dcb03ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF06D | 16576 bytes |
font_02_sfnt_off00011b96.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B96 | 16792 bytes |
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