MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains a link farm pointing to multiple compromised WordPress upload directories and disposable hosting sites, suggesting an attempt to redirect users to malicious content. The presence of these links indicates a likely phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://saokienviet.com/uploads/image/files/bowar.pdf
- https://fcksa.com/ckfinder/userfiles/files/76219619524.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081de9066fc4---gasiku.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/ffbd52fb6d365d0d12385963aa9ca507/35989258253.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16098295df211a---51729380003.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/69ded3e92fd06f357e379492eed16413/5190729430.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095229ca3ce0---81359635420.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/5c69c3165652ca62da3b7b027e02d189/voxezijadawu.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/temmjf1kbr4kum28vrcl9h5e4g/dilazifexudafelofevi.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ba90b82d911---fapomazafu.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/v6bpnsnnuj44t1pel086hndslj/divesiwopumurofelodadasor.pdf
- https://okna-stv.ru/userfiles/files/semoda.pdf
- http://yournamebadges.com/withyourdog/cms_uploads/file/tidetojowipawobejowaf.pdf
- http://omonetach.pl/foto/ilustracje/file/19816166123.pdf
- https://erdemlerkoleji.com/resimler/files/luxagin.pdf
- http://teifsepahan.com/files/file/jamojilovizakawe.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2568743a53---20960100548.pdf
- http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gavulevorodoniresusojino.pdf
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/115885891e2c13bdc8561eaca3acb0af/zasetexarag.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3bc2930f01600c642530bb01ac10f58c/98879739205.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=university+of+hyderabad+faculty
- 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_off0000c288.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC288 | 16792 bytes |
font_01_sfnt_off0000da9a.bin91fd7b83671a2a6481ab811882ca7862431d95890d1e41740359d9c4f42d8660 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA9A | 16832 bytes |
font_02_sfnt_off00010692.bin294f11561fae465df5d09de11b7d5d9cd92411d27f977b20ece2d690032d12b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10692 | 11000 bytes |
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