MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The file is a PDF containing a link farm that points to multiple compromised WordPress sites. These sites, in turn, host other PDF files, suggesting a multi-stage redirection or download process. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba4a0ca4bb---31633510772.pdf
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/3563e49e2f53045bb3fe4291c2dea604/20203202325.pdf
- http://agro-pasz.pl/ckfinder/userfiles/files/61861592746.pdf
- https://atamergranit.com/userfiles/file/xegutuze.pdf
- https://bluza-shop.ru/content/File/xevosiximijaduliti.pdf
- https://lawina-radom.pl/files/file/50831726113.pdf
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/unlqgevt8pnv6d9tp5ilc9in5j/27393268001.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/mmiolrnngtlh2c4jm5q0bm38ua/61249192963.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c86f3c9f42---25480585107.pdf
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c784babfeb---82965002657.pdf
- http://ekotop.eu/userfiles/file/9707250543.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a3c7ae613---mejivuwalozuv.pdf
- http://marinapogon.pl/upload/file/numakafofapamamopure.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/b569c25ab92dd58bb88301096ce0365b/legoxenemuverujijaxusomiz.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b257bf1b090---5967686783.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16093dd60e41f0---lelonorezujaxefop.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608031484181e---delab.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/k692nbhsgh72gosp1lc9ktfjf1/45587472761.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/f1f53cea925409dcef36822ec32e00a8/vevufetar.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/1e1u3dc9jgau97vqjp3ff6620c/54494779513.pdf
- http://harryreichert.de/uploaded_pics/News/file/78592190272.pdf
- https://iqmuseum.mn/uploads/files/fumejuvutenabapore.pdf
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/55e36e598f7f76f9bac6b7d194b3c8aa/95324638174.pdf
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/7f5504c1e2d4ac0df6c5701f572ad265/28191115394.pdf
- http://sva-jeanroze.com/xmedia/file/49957240407.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=how+to+summon+multiple+mobs+with+command+blocks
- 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_off0000fb60.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB60 | 16792 bytes |
font_01_sfnt_off00011377.binbc289f13b82144865af93364a45fc8771af7a27edba791fc067177b4a813e807 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11377 | 11088 bytes |
font_02_sfnt_off00012ce6.binbe9e33e5c5f645bc08fa79976a773c95f8a5bb9c948195e751bbebdecb7493b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CE6 | 18644 bytes |
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