MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and other potentially malicious domains, suggesting a link farm or phishing lure. The PDF structure and embedded links are indicative of an attempt to redirect users to malicious content, likely for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160982e3f1250f---27211675407.pdf
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/dade354b3bb8eb7cf1445a99fba1d17b/xibizotofe.pdf
- http://popnmusic.fr/userfiles/file/9475324120.pdf
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/63497428583.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607086e1bcd28---jagibapaxik.pdf
- https://relans-nn.ru/images/docs/file/dijevewuxuvoluvemonej.pdf
- http://ebiocell.com/uploadfile/file///2021071521021330.pdf
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/5bfk9co47c2q6dou9cuib1jf9h/96570852891.pdf
- http://imi.vc/upload/files/3343928715.pdf
- https://luminex.pl/upload/file/59228210661.pdf
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/950494b9d51578d4f9ec3bc0ecfb87a2/zilepubadupuxesubogum.pdf
- https://citytrafik.nu/images/file/tibuzekiwevetuxen.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a863461c900---ranazukiromawixuwezowibu.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607424d179cd1---43234569246.pdf
- https://cubic.is/userfiles/file/28624050898.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/10ae62d360b56611177ea61a1718e0ba/fepowagiro.pdf
- http://curry-box-deluxe.de/userfiles/file/demopuneri.pdf
- http://caigeshi.com/uploadfile/file/2021052905362573499.pdf
- http://alphanaturehk.com/userfiles/file/gugamusezuxoxawekenaxa.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081ddf3939ce---5973779170.pdf
- http://suseefinance.com/userfiles/file/74518228537.pdf
- http://pospatrans.cz/UserFiles/File/diwumivigopo.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4c64a9bed---39677928943.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083a1d500c3a---99930007375.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=cooking+raw+brats+on+grill
- 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_off0000f665.bin445c519ec77c9bc3c83e2eeb0f04d578813a7b747b0db0ef915a9591b0496028 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF665 | 16904 bytes |
font_01_sfnt_off00012244.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12244 | 16792 bytes |
font_02_sfnt_off00013a5b.bincb015ed70a265f3db2d5d420d4ed7507137161da99ee10b72d28d462efe06919 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A5B | 10500 bytes |
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