MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external URIs and links, many pointing to compromised CMS upload directories, suggesting a link farm or SEO poisoning tactic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://pistant.ru/uplcv?utm_term=taskalfa+3500i+manual
- http://www.bash.cl/media/file/neperatiduvavopazodelomuf.pdf
- https://hondaotohaiphong.vn/upload/files/31074049611.pdf
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608edceb23fe9---51986358010.pdf
- http://gymostrov.org/gymostrov/userfiles/file/62965110263.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160e798310d710---nuwosewizades.pdf
- https://mariapolis.net/ckfinder/userfiles/files/25976633121.pdf
- https://hitourkorea.com/FileData/ckfinder/files/20210818_4D4B8A604296A1E6.pdf
- http://st-johnson.com/Uploadfiles/files/zumijag.pdf
- http://newtarrytowndeli.com/uploads/files/92704598766.pdf
- https://winpoasia.com/ckfinder/userfiles/files/luponefazadetulewapit.pdf
- http://pastadimatteo.com/ckfinder/userfiles/files/jejelaxidagafagerolusapi.pdf
- http://testplanet.nl/uploads/files/lilojamaraf.pdf
- http://airfa.it/userfiles/file/19809089039.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1609c0dad77dee---nepalowedatuxofulite.pdf
- http://adria-ex.com/images/blog//file/56707792756.pdf
- http://dbjhockeytournament.com/clients/f/f9/f9ff496842c877cbb4522510b668f2a2/File/sekebixuliwotap.pdf
- https://ilexgold.com/app/webroot/files/userfiles/files/29494732139.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160979d97ed74e---xaguvaxokinikinazajobitu.pdf
- http://zap-interactive.com/uploads/files/pulufebavimi.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083a8e934590---gebasulegataz.pdf
- http://onlinepravenconsultant.com/uploads/wysiwyg/files/pilujojefumenaxusol.pdf
- https://pima-alarms.rs/slicice/file/gidomirubin.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160aed17cdfecd---23046529112.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bd54.bin5928887768a12cb663cff69318b53ced9ca06b54aa91c9666450d7ef631420f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD54 | 17188 bytes |
font_01_sfnt_off0000e9a3.bin560c2dadbc8b4de6fe8a132b62c975f978647ac0e3131b6a8ea4acdae0217222 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9A3 | 10508 bytes |
font_02_sfnt_off00010182.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10182 | 16792 bytes |
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