MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to malicious content or phishing sites. The presence of these links and the detection results strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16096e108150d7---84209971796.pdf
- http://animationcoach.com/userfiles/file/jebutadefidivopusekib.pdf
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093be8412474---12212153872.pdf
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9715142922---87489043457.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/884221a0072c812e92f58c4aadd3fbfc/54275827334.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/f336aeb6eeeb585b9f6ce8f89ae7581d/kowalafoji.pdf
- https://cmsschoolkg.org/userfiles/file/43664450663.pdf
- http://burnettefamilyreunion2021.com/clients/867108/File/sodixijatuvekite.pdf
- https://nmg.lv/img/uploads/files/morixanusaf.pdf
- http://unipsyclinic.com/userfiles/file/20210522082315.pdf
- https://clickkedai.com/userfiles/file/zusuretepid.pdf
- http://covinahigh1980.com/clients/1/14/147ee80f0cf2e08ca1b5067d21485a43/File/30357549559.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b93d03d82f8---5870702530.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160838ae7a8b7d---16288832798.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/8690305ce6eb203456e84f266e874db3/pujekobibomokis.pdf
- http://creatinglifeoptions.com/userfiles/files/rulawokopozemagisojixa.pdf
- http://fenotropil.ru/userfiles/file/xawoneganesitanosufuteza.pdf
- https://makiriaszto.hu/ckfinder/userfiles/files/nepagom.pdf
- http://enjoybowlramenandpoke.com/uploads/files/gafofajizeduxonukipuk.pdf
- http://maihome.hu/admin1/file/21384295742.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac85f34038d---fonedob.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/a2c319519b260cbd619ece3b363024f6/85549600255.pdf
- http://xenangheli.vn/public/files/zesij.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/0b25dc2eae32c7afcded42675cb0960e/rilopa.pdf
- http://tfh-filter.hu/_user/file/23153525415.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/p5gieerijrlauq4b153paiajmb/44398437478.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=realtek+high+definition+audio+driver+windows+7+64+download+free
- 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_off0000e817.bin40a25f5a6f844023e0d1a213ef40a52e1c79bb72445493c250eb52e6b98d28ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE817 | 16672 bytes |
font_01_sfnt_off00011383.bin644fb295c3c97363f381c5a158c923cc96fe47d22b10d7f1b32f30bc4902ed80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11383 | 11316 bytes |
font_02_sfnt_off00012e0d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E0D | 16792 bytes |
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