MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this. The primary attack pattern appears to be luring users to these external sites, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://allytemp.ru/uplcv?utm_term=corporate+social+responsibility+advantages+and+disadvantages+pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/2ed817ac62cea61b4907fa4376bfa64e/tumalomorolagisajoxujife.pdf
- http://slovbau.sk/test/userfiles/file/88518839766.pdf
- https://esz.jp/img/editor/files/36877590868.pdf
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/3952f33e6998b57778c94d7f003f7fa2/tilubefopajo.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079c67d64f1d---35300153900.pdf
- http://sieuthibongda.net/ckfinder/userfiles/files/10828047273.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/8htu8prj6f6oa0tb6mtkh05gf5/siwem.pdf
- http://pk.mo/userfiles/file/vekudikapomuvumebalupuxo.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/a4b2443e7530d0273c311080ddc3053b/48228697478.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/3ejpo6rnlbq42n0bq8is88hgi0/takusegusumazu.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7dea2128d---geniwudumitadoluloj.pdf
- http://grandp.ru/userfiles/file/kelegavenenudakaw.pdf
- https://irisapp.cn/uploadfiles/fckeditor/20210525/file/16219262803827.pdf
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202105032121158714.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc7e1bc274---tigedigumodubarene.pdf
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c94febfe50---dibipewinanexod.pdf
- https://mrdak.cc/uploadfile/files/moluresemibemiwopegojipo.pdf
- http://harryreichert.de/uploaded_pics/News/file/boxol.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/2fa13f1f2c24c50f2e596a3982c26571/daxibodisowufewoge.pdf
- http://aldara-latinoamerica.com/userfiles/file/jejir.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_off0000e259.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE259 | 16792 bytes |
font_01_sfnt_off0000fa6b.bin9ee78e3970f238495bc353e0e54ff4fa7095c99afe61b93fe1192163ccbb7a63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA6B | 16632 bytes |
font_02_sfnt_off000125bf.bin776ce365368e1538422e1c8a7a82b6225ef4eea969291b1a83bd2a92b160f061 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125BF | 11148 bytes |
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