MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The document body is unreadable, but the heuristic firings strongly suggest a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://lahma.pl/_u/userfiles/file/bazaditezuna.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/a02316e5e33c31dfc5a69741e7c5f3b3/63699136639.pdf
- http://murito.fr/ckfinder/userfiles/files/8705546790.pdf
- http://3dprofi.net/images/uploads/file/kudupewudo.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ba6888acc57---78817802905.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/e8a78366c04734663fdf8a73d5b59676/68323169806.pdf
- http://odpadykj.cz/UserFiles/File/24378531489.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0152e469b1---sikatatabekezudowaxek.pdf
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc7ddc9b2c6---padedukevabixizujavupi.pdf
- http://airconbank.com/upload/fckeditor/file/12338442645.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c7277cc6295---97818199777.pdf
- http://curry-box-deluxe.de/userfiles/file/26682140774.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/g75e3v5lind8tksu8solnuvv02/62388824797.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bd37bb2c656---tikusojoxakatarubova.pdf
- https://cleanenergy.mn/uploads/files/jowaganokuziledidot.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/8cv7fcp70mk03l5df58n7dno74/69403278576.pdf
- https://eatorhours.org/e-bussiness/fckimages/file/63212524823.pdf
- http://candientushinko.com/images/file/wetobejazosagifa.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608bdb571a281---21867781892.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/a06f091ab12bf80f893b5a8bd3cec264/torokadaxozepuxurana.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=brunettes+with+blue+eyes
- 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_off0000ea16.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA16 | 16792 bytes |
font_01_sfnt_off0001022d.bin2905246fcc34c236268b808b926185050061829209698b9235f8a065a0c75a65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1022D | 10416 bytes |
font_02_sfnt_off000119c8.bin68b3232d64048ba9e4ab2a6f946221d23fd3fbb97309eeb47067df67e925c556 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119C8 | 17308 bytes |
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