MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The presence of numerous links pointing to compromised CMS upload storage and disposable hosting suggests a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9923
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 http://asupuro.com/upload/save_image/files/jazirikimimuvesukajar.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/b223706734bbfeca9ec238e6806fd150/wipuxelewo.pdf
- https://condominiovillage.com/userfiles/file/55649017984.pdf
- http://hud101.vn/webroot/img/posts/files/xifololidurera.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/4ad57d946e7d4e614ab501e214496266/demekumurorerafejegenu.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160b0bed87d9da---48597635286.pdf
- https://susta.vn/userfiles/file/42787971566.pdf
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/6223dd3a6fec799dae3f86951cccac56/77459860675.pdf
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160764a5150623---wugirufotovole.pdf
- https://sasalidayanisma.org/uploads/file/soxodikekutikilinafa.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4a1527abb---wipiponix.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bd54d490b---24711678891.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6ad496d0d---24759449656.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0f3b401b8---93478197483.pdf
- http://palyavalaszto.hu/teszt/upload/file/3959293493.pdf
- https://aawyx.com/sites/default/imageuser/file/gakox.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/572ef820075c69b734a2df7487555804/pagik.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/vkhpjmvphbk7tf21e15532qci8/bikulugelolesin.pdf
- http://alexhofford.com/temp/files/file/wemijon.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baba638464e---45965807184.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/a0ad61cae29696ac66dc06895df20b30/83594225956.pdf
- https://giolog.biz/images/bulk_images/files/91551613094.pdf
- https://ahreco.com/uploads/news_file/91486423585.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d99ec88a245---zogavuwokanuji.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=node+and+antinode+definition
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d21f.bincfce6f56f2a22fc3dc3f618803a00d4785bdee4615804f41818bb93eabb7382f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD21F | 20668 bytes |
font_01_sfnt_off0001071b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1071B | 16792 bytes |
font_02_sfnt_off00011f32.bin394829a028bef8fe038b8e7acdeb83a57574786caa38f5030e44781500af720b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F32 | 10008 bytes |
font_03_sfnt_off00013576.bincf0f44c6a9315be420ddb509f11e6014b22ae68d5c323ca6c1eb0880a1cfebf0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13576 | 2132 bytes |
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