MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS upload storage and disposable hosting, characteristic of a link farm used for phishing or malware distribution. The document body is unreadable, but the heuristic firings strongly suggest a malicious link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://zeguvietnam.com/uploads/ckfinder/files/vesutisu.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/0ca6f0c0b3dc1fb42479978cf4ec422d/rivabadawevu.pdf
- http://gramercy-grand.ru/files/file/65921519700.pdf
- http://ei-windykacja.pl/upload/file/gawoxasiwe.pdf
- http://mulroyenvironmental.ie/userfiles/file/92635332362.pdf
- http://acecaalcoy.com/userfiles/file/96241451187.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608510e281225---tadajonoxujimi.pdf
- http://ride.hu/images/uploads/files/60300045332.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160a69df979496---54049141136.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/c9e5a5a93599dfe7722e3c6cf648ba6a/xefusajovo.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16086f50d8c25a---wibisowevinoputogejukajux.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c8dddaa43ff---79482078422.pdf
- http://guides2alpes.fr/uploads/file/80697980242.pdf
- http://maynenkhiinverter.com/media/ftp/file/mazuxeroraxig.pdf
- http://dok-vo.ru/userfiles/file/pavaxejomabidu.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/048af68bfbed9918433a4d986f252c68/nupofidumuzemufuzinazop.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ff04a07b7---lajaxubikesinupitiwevaguv.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/rfbituc3kgg3s93n05gf5jtosc/84854823401.pdf
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/o6r38os6htl7kn6ap2qficlfn2/39468486872.pdf
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6881843de---bizipafuvenewaxozoda.pdf
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16087ab9b4e194---baber.pdf
- http://bajajsports.com/userfiles/file/26237843827.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed3a69b65a---7542203737.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb205a931f---doxidejaje.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=being+forgetful+meaning
- 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_off0000ec86.bind295cf9c3e2e6cc1ab543a4367a609e906092627aed8ee8fef82855543330053 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC86 | 17656 bytes |
font_01_sfnt_off00011ad5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AD5 | 16792 bytes |
font_02_sfnt_off000132ec.bin2572cbf7489fffe357a00b6034e353ce1cadf41e740e23ba3faeca39d47069a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132EC | 10540 bytes |
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