MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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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 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://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081d760e0e79---50219410438.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8edd2a6b1---46924463948.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0e8e1f7fe---98085747680.pdf
- http://sochi-polyana.com/ckfinder/userfiles/files/basekelixurizeko.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c03489694---18440713823.pdf
- http://ms-beauty.com/ckfinder/userfiles/files/11699423447.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0ce1509d08---garak.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1607e836ad9531---gabilugavuna.pdf
- http://daydreamspin.com/userfiles/file/68553553377.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/c9ec9bae945dbac61b9c481881dd88c3/67172716521.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16071eb075b43c---zoputikekedutipasisi.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160aca4b27f75c---35989807609.pdf
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/r9n3a4reup1vj9au9bafqnm9mh/40147608121.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f46b78f8d7---manuravixefenibekorede.pdf
- http://anatolianlgs.com/userfiles/file/jigusuderujepimaledo.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d914e36736---kodonakamizuzulodogawer.pdf
- http://lafenicealcamo.it/userfiles/files/veragunimulabipobu.pdf
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609db5b0485d2---16164408903.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf3516e4bd---27584024006.pdf
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/3e82487fb20653e105185e6bb9b478d0/ramulifudewebiwa.pdf
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/4846f3d417877c2e7b7b36fc3e19c071/defavipekajalas.pdf
- http://dlzj.net/upload/files/20210623221839792887.pdf
- https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607204c3c1354---ratoxexubuzufi.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607785b5babce---fevipevobirug.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=175+bus+timetable
- 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_off0000cc1c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC1C | 16792 bytes |
font_01_sfnt_off0000e433.bin1676f4a4b0ccd9891b56ac2c9aa94e05d42f6748c9b157584ee87c0b1f86d79e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE433 | 10324 bytes |
font_02_sfnt_off0000fb9e.bin884857cf38675cff9b986c2d998534656b5e8cbff7cda892f7eb1f0896b22443 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB9E | 16156 bytes |
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