MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress sites and disposable hosting, suggesting an attempt to redirect users to malicious content. The embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/f186fe520eb6c599e0701dee96dfca22/punerafud.pdf
- https://digireg.ru/upload/92789483353.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/8f8826b836cc45e43c4a44e1cd2aa464/jafume.pdf
- http://covinahigh1980.com/clients/1/14/147ee80f0cf2e08ca1b5067d21485a43/File/25036638120.pdf
- http://polskienarty.pl/data/aktualnosci_imgs/file/nadafiwukuwakudetimisetag.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/32d8c49bb5c351d3d1532276deea88ef/34510072488.pdf
- https://yucekalipmakina.com/tsrm1/img/userfiles/file/96112727302.pdf
- https://ceccargiurgiu.ro/userfiles/file/75987689532.pdf
- http://franklinbristerharveyfamily.com/clients/a/a8/a8910385c57dfddac3c6311e2bd1422e/File/makumawebizoxujexi.pdf
- http://prime42.ru/userfiles/files/nipavuranuzi.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085f46cddffa---91023335917.pdf
- https://patoman.ro/ckfinder/userfiles/files/vojuwiko.pdf
- http://bertrandetgastineaudesigners.com/userfiles/file/jepikomupavexejekuv.pdf
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a127452562e---44844900299.pdf
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/8eb743aeb384619228184969024828ec/85188382596.pdf
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/6ad63f32feba95dc9e34349617ec623f/lebixav.pdf
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/2f0b85ed7ae3a9acb4ad7907af5dfe6d/vovidifizut.pdf
- http://tecnoservizi.com/userfiles/files/60076559956.pdf
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/52d064289bdb160c5bbbe12cf2cb044f/pupavedejoguti.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/2c3f6fe22ffb60dab57822f3be49f111/lagelu.pdf
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/726b97cjgu5mr5detnqm2iujg6/pilit.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5974ceb6d---zerosuwurisi.pdf
- https://imagebeaute.fr/userfiles/file/16355501922.pdf
- https://rozgarnetwork.com/ckfinder/userfiles/files/84991213485.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=bahubali+2+hindi+movie+300mb
- 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_off0000eb16.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB16 | 16792 bytes |
font_01_sfnt_off00010328.bind981a75de8bc55c24270151dc28b1aa992c00e396fbd622805963609bfd42651 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10328 | 17332 bytes |
font_02_sfnt_off00012f71.binabc75f6aff0cfde57b6193f9376022a93bdfe6bb4f2db7a7fb861e7554e5aa7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F71 | 10920 bytes |
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