MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf' and a wallpaper theme, likely a lure to disguise the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/1fc092613670daf496c2cc1de35f53a1/tezoxepalevaxukebavedoku.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160824a5d8ac97---26641435949.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/874790d5197fc553facb745e1468238d/61177254616.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb265a0551---lekulipegaperin.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/ibdicqeju40s180gl7jqglmd6g/xatakobazuru.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/90b0ad82a0b2d9ffe7701f5d1df323b7/60843471703.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086cf475ed10---13444132245.pdf
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/761bb99a9479b402a6980982cf8ba888/pekagixokebot.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e0c96f2ad---wuvuvelesunifumizixejabu.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16081653d358f3---dijaneli.pdf
- http://allmedicus.com/userfiles/file/lipasezemi.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/1de0414cb7f2a75a29daf554f6980091/zaboxasurunaxozaxenebugur.pdf
- http://allycatering.com/userfiles/vawetezusomuvok.pdf
- http://bfr-bialapodlaska.pl/userfiles/file/62748102488.pdf
- https://manuscripthandler.com/userfiles/file/xawirawideto.pdf
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/72rgfrs7t3noad26p0cgiuqoc3/30497239494.pdf
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/ffkb02vd0hvgdhmgo01qtteiq7/82571649244.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=note+10+plus+wallpaper+hd
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dac4.bin7ff3e21c224a0979a41d5d1ef1cb37804d5628ad12ba776025886691ce0b6978 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAC4 | 5028 bytes |
font_01_sfnt_off0000ec08.bina356ee5263259bb6d257fa1dc223b20632fac9d7c3895a3f83cf4a2348546a84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC08 | 10460 bytes |
font_02_sfnt_off00010f90.binff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F90 | 4324 bytes |
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