MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The presence of multiple distinct hosts and the use of 'utm_term' parameters suggest an effort to obscure the true destination and potentially leverage SEO for distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9804
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 http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160767cb62c1e4---wabajipufizusujaxu.pdf In PDF document text
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/7fc61edcf5c35817d9b6fbd3d6599a75/kavimugemesuk.pdfIn PDF document text
- http://dolphinkorea.com/files/files/45167998025.pdfIn PDF document text
- http://odmooregolf.com/clients/e/e7/e7046aca88cfcc92de0be8f3f6b3de3d/File/pekezoxamonezuwul.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c8ddcf52d---81253821196.pdfIn PDF document text
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1dd1368385---90265504111.pdfIn PDF document text
- http://the100voicesofgospel.de/fichiers/newsletter/file/68211342972.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083fc67dc9ac---89038938442.pdfIn PDF document text
- http://arniestribu.com/campannas/file/romikixaferuximosem.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/34bff80dd7aec090e07b590ee99d8281/31704502782.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d30118126---73386696946.pdfIn PDF document text
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160825402283d2---semarovanojimufesowofitu.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddf6e42307---63265431685.pdfIn PDF document text
- http://aldara-latinoamerica.com/userfiles/file/pinenuvoweje.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1608c422fe9863---35502645579.pdfIn PDF document text
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/b8aa4b7cf028158d10d930279eebd5e1/94752996716.pdfIn PDF document text
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa012c58f84---rizit.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1609b304e00a01---80270062577.pdfIn PDF document text
- http://sweetbasketsbyjackie.com/clients/864293/File/97257908076.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccd2416de4---20210814327.pdfIn PDF document text
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/2e19e264e07e48dc36cbe8ffc35cc9e8/xamak.pdfIn PDF document text
- https://invest.pl/userfiles/file/77087655418.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/0df14109cc7a330e53fb4ea673fa1f99/delamuxuzuvupitudigaxi.pdfIn PDF document text
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087600b13247---zopamojazitipidoramipide.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/85062412516.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/ebdb51879cda6be35db9808a795950e7/natofunogavaxarujokixekiv.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=is+a+liver+cell+a+haploid+or+diploidPDF link annotation
- 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_off000178a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x178A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000190b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x190B2 | 22016 bytes |
SHA-256: b9c38222c931ad22aace53454efb3c459e4e1abb907fd3de4db37386216b909f |
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font_02_sfnt_off0001c89b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C89B | 10424 bytes |
SHA-256: 95833444fca6b138315a88e6f0d80d92c8843f6273b40c5e311080d5f9f5cedd |
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