MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites, acting as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of hosting malicious content on disposable or compromised domains. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9924
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://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfab095ca8---25453088043.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/3ec48e31294454349e20ede989407e8e/lisufukajumumenaloju.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c6720f3b72---lozalizuvakanunategis.pdf
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/13fd808d74e21dd20a3966ad51f53e6d/59572818707.pdf
- http://wsp.pl/userfiles/file/8615877758.pdf
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/ag07khpk3657f35frnvp1bi54h/vaximidumid.pdf
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/sisllldvgj5ehpao97tik2sptf/33888205244.pdf
- http://clair-environnement.eu/catalogue_dynamique/file/judujul.pdf
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/80646421a3fe205e6721ac0269c26db0/gaguwixamakiwazasupugev.pdf
- https://onhimalayas.com/ckfinder/userfiles/files/7303773477.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/5a86a6ade39e59ed6053767885cc5743/nefagagoma.pdf
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/86c5a57f0df07301af513354a09b7f96/kivoxozuninabiwo.pdf
- http://zovsh.com/Uploadfiles/files/buxuwubeleloki.pdf
- http://rabotatver.ru/userfiles/admin/bonuzikoxemebibijezom.pdf
- https://maydangson.com/vietkiendo/upload/file/wopinurizemigulat.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160aa45999be73---gimijuripasinubisusidedo.pdf
- https://casabresciani.it/uploads/file/73814117180.pdf
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/5r3egmm83i5a2telia68bbiev1/noguvekakudufo.pdf
- http://cortabellanews.com/userimages/82666550270.pdf
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/sck974rd6p3pid2sv2m6skaef1/mikabifotowiva.pdf
- http://scantech3d.com/files/fubosig.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d83dedc154---8044721846.pdf
- https://getadoc.in/ckfinder/userfiles/files/kokukolakodagusifagitut.pdf
- https://contabil-fiscal.ro/mm/file/76168674431.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=4g+lte+only+mode+switch+apk
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/877a81654d529ffc0950875263c015a4/rusebatawumarobavobigujo.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000edd1.bin0c737c8d2c9c4c220d9cb08d9e6962dc2dd1368df1046a25cb393e52e70c2dc0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD1 | 17276 bytes |
font_01_sfnt_off00011b4a.bin1ff761f1d86b6b543ff1984d0771d04c997e31f15155c9d6f5287bd4d98db5cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B4A | 11136 bytes |
font_02_sfnt_off000134f4.bin9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134F4 | 16092 bytes |
font_03_sfnt_off00014a39.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A39 | 16792 bytes |
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