MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to numerous disposable domains and compromised CMS upload storage, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, lacking readable content to infer a specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://infrive.ru/uplcv?utm_term=harry+potter+online+streaming+movies PDF link annotation
- https://chetanaus.org/bheru/uploadfiles/file/gizugivawepunaruwipus.pdfIn PDF document text
- http://cartopack.com/Images/file/nudunimebanuvopiful.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613c890f8371f---jodekumowum.pdfIn PDF document text
- http://zhuoxinlaw.com/userfiles/file/20210923063441_1125974094.pdfIn PDF document text
- http://electriccityusa.com/images/fck_uploads/file/lerexe.pdfIn PDF document text
- http://boatmonies.com/uploads/files/bedizasosa.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132dbe100c3e---nejuvu.pdfIn PDF document text
- https://learnrkb.jugalbandiresearch.com/ckfinder/userfiles/files/47547646950.pdfIn PDF document text
- https://garnizone.com/userfiles/file/40238553207.pdfIn PDF document text
- http://zzquansu.cn/d/files/65391930491.pdfIn PDF document text
- http://jpiano.net/userData/ebizro_board/file/7539300801.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/a31fd2f772b4d46a023cfef00d60d189/rapujuterumop.pdfIn PDF document text
- https://insolite.lu/img/userfiles/files/65938070268.pdfIn PDF document text
- https://ksdc.in/userfiles/file/83713282441.pdfIn PDF document text
- http://ticketsperiodico.com/galeria/files/wulakozoxor.pdfIn PDF document text
- http://cjmfgx.morefriendship.com/upload/files/98201980003.pdfIn PDF document text
- http://omni-links-europe.com/images/blog/file/98087755555.pdfIn PDF document text
- https://centrorevisionimonregalese.it/file/nenabukemomelorilodis.pdfIn PDF document text
- http://saothienemb.com/uploads/images/files/79742427338.pdfIn PDF document text
- http://101-games.ru/images/uploads/files/gaderafebutusage.pdfIn PDF document text
- http://inter-travel.hu/_user/file/fufodanuwumi.pdfIn PDF document text
- https://mimpishio1bet.com/contents/files/pulogimekikovigaganalawe.pdfIn PDF document text
- http://gldbirdgel.com/user_img/files/32599804139.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In 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_off0000cd66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD66 | 10764 bytes |
SHA-256: 8993251c140add3110c02134ddfe373cbeeba1f18119655d320343ea9007752e |
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font_01_sfnt_off0000e628.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE628 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fe3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE3A | 17764 bytes |
SHA-256: 2d704d0a46c1e26e3d3b8131ff181db7600e80f7ed4596b5e241621e27f9d290 |
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