MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress upload directories and other disposable hosting sites, which in turn host other PDF files. This pattern is indicative of a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://www.centralperdana.com/file/nazezofuvuzowasomifokok.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/a553eb265113f8735c8c52bd785f2eae/14758613882.pdf
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/uh6mrkiug4ofj7j8ei14g6c5kr/xixoj.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/10740924198.pdf
- https://xo-sound.ru/userfiles/file/11897932842.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/f59f47a7c98e852f149d2053b706da0d/14878203158.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/acfqgh4ldfml71jvjpbkcnksp2/77548481646.pdf
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16092e5907b44f---17311467079.pdf
- https://areicon.com/images/file/zefizadegijogagovunufimus.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3ac834b1f---92701717204.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16092ba701d056---58193897168.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/f848df3b70f79eee0609aa1f170d149c/75043992827.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16088e0e4916d2---75870621259.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16079bce80d048---45233192303.pdf
- https://vyrukrc.lt/userfiles/file/gukivomedoxa.pdf
- http://flemisterbauldingfamily.com/clients/8/82/82a21d9598fc66f9117a8fb7222c8fd0/File/panofagorenufuxojevinaf.pdf
- http://mooneyes.pl/userfiles/file/71834653567.pdf
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a731c8c6337---jigafipowul.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb480eed14---fugiru.pdf
- http://weddingdiy.cc/uploadfiles/files/20210608_182502_4429.pdf
- https://study4student.com/cache/fck_files/file/90163765140.pdf
- https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/jdk91dk5fj8g6r6shhca6kia22/53478960131.pdf
- http://simkoongschool.com/uploads/editer/files/26185021380.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=the+area+of+circle+that+can+be+inscribed+in+a+square+of+side+6+cm+is
- 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_off0000e6b7.bin2040a87ccfdb49c60f290441a579be4efcdd47f7c5d261019b76ebe400462722 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6B7 | 18884 bytes |
font_01_sfnt_off000118ca.bin479ce2b09fd3ff5a3abf6ae69dd0ab10d7e6c8f0372990c585a030f59426a439 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118CA | 11256 bytes |
font_02_sfnt_off000132c7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132C7 | 16792 bytes |
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