MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS upload directories, suggesting it acts as a lure to download further malicious content. The presence of multiple PDF link farm heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717860ef50b---20242633751.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0fc287cbc---57106636878.pdf
- http://charugarware.com/DEVELOPMENT/charu_garware/uploaded/userfiles/file/96210931794.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080b33030645---wafegozurezetana.pdf
- http://caratow.nl/userfiles/file/joboradaganibifanurezus.pdf
- http://soflocops.net/clients/81266/File/kajopejawukipavos.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/3d1c5bfbf1d8ae364aafd599cb941c00/44622573860.pdf
- https://alasclub.gr/neuro/ckfinder/userfiles/files/sodanidep.pdf
- http://motorlustor.net/userfiles/file/72748744286.pdf
- http://sluchatka-shop.cz/files/upload/files/ruluguridekapamulupalu.pdf
- http://xn--80aaae7amexjfdlfdfg.xn--p1ai/files/file/27313597267.pdf
- http://kenzoum.org/home/integrity/public_html/ckfinder/userfiles/files/86467254704.pdf
- http://www.anjhimayath.com/upload/file/93692169462.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/4t3qqenidbg4pvhtchq0msrpm1/60944053836.pdf
- http://msiutilities.biz/documents/71954719031.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083215b22a09---91466548595.pdf
- http://radissonhoteltraining.com/userfiles/file/reredozosuzuj.pdf
- http://parkhighclassof60.com/clients/871169/File/1829978856.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/b41ec73bff18b3bbd9725c26f3041e22/pesowetevobijuvivewepoja.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/4f3f562a70e62606d6744f8efc1cd383/23236995534.pdf
- http://seigyobannkaigaikikaku.com/ckfinder/userfiles/files/lirik.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a1d9f07498d---78787592512.pdf
- https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/5a3148a0a50dbf20222c79c80df3258c/mifutemuxanixafadepen.pdf
- http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/wulinovikijoludonelotul.pdf
- http://homenet-spb.ru/userfiles/file/28552341145.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=different+versions+of+the+three+little+pigs+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_off0001628c.bina271e918759ffa4a64f2d61fa298155175b4a4912f076167e5757c1de8c4e1d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1628C | 16824 bytes |
font_01_sfnt_off00018e3c.bin04e5149911da9b831102404e0ec0063805c9699ec831f1acd166f62dc90a7b7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18E3C | 10680 bytes |
font_02_sfnt_off0001a674.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A674 | 16792 bytes |
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