MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to websites that appear to be compromised WordPress installations, serving as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of multiple distinct hosts and the use of 'utm_term' redirectors suggest an effort to obscure the final destination and potentially engage in SEO poisoning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160c6469239418---mitanudefanata.pdf
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ad50ea4fb90---wopulajomarajajavale.pdf
- http://tomaszskiba.com/userfiles/file/65381782274.pdf
- http://constantcontinuity.com/membership/data//files/97761872062.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/a6fcf20c3c81764260a458cca0b9b395/reridiz.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608be9513a697---nimuzixasijo.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9a7b37f1b865dece6327dbb2e8fe740e/labanika.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085c968537c7---wotomedagibi.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/ba6299fc448b388a5d14f4d4ae12d203/13234396289.pdf
- http://xn--49s538bo8ux8c.net/userfiles/file/23095430386.pdf
- http://k12kos.com/ckfinder/userfiles/files/6157001997.pdf
- http://kubak-ubezpieczenia.pl/userfiles/file/92943394984.pdf
- https://taechoclub.com/FileData/ckfinder/files/20210601_0D575AF6C427A803.pdf
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9f8cb39e69---75388192955.pdf
- http://marcus-1.com/FileData/ckfinder/files/20210616_D556C3BDCDF2A6B1.pdf
- http://mazdooradda.com/userfiles/file/bibufasoxu.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab698949da1---9237608981.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d9f72a016c0---famuxigabononagoro.pdf
- https://rmp-familienanzeigen.de/cms/files/16749661468.pdf
- http://iltorg.ru/upload/file/91421628691.pdf
- http://flatadministration.com/uploades/fckeditorfile/63354981065.pdf
- https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/3ad188a5fa17580018e52824fed4d746/geguwikipuvuxofoletulup.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=wish+i+let+you+love+me
- 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_off0000d835.bine37deb8b74230a0e4db5d34aeb9cefe12e7d7899ba855ec5e24d1cc28fe4d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD835 | 16680 bytes |
font_01_sfnt_off0001042d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1042D | 16792 bytes |
font_02_sfnt_off00011c44.bin50fa0c32ff483a2832ae438fcb7ce0135726b4a87d454dc0b9ce770a4fe13706 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C44 | 10280 bytes |
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