MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URLs, many of which point to compromised CMS upload directories or are part of a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://smidgel.ru/uplcv?utm_term=free+chips+house+of+fun+slots
- https://centrorevisionimonregalese.it/file/44608386843.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad61f1b677---deloredawavajire.pdf
- http://kamerton.nl/clientfiles/6279080801.pdf
- http://sntaviator.ru/ckfinder/userfiles/files/tikixabirag.pdf
- http://hotelrealerimini.it/userfiles/files/7759411296.pdf
- https://dolmalatrek.com/userfiles/file/4431281027.pdf
- http://upoart.com/ckfinder/userfiles/files/83497348263.pdf
- https://hometeamcorp.com/images/usr/peborozezenubavu.pdf
- http://web5gstore.com/Files/files/nawawalewupuzew.pdf
- http://xn--80aamwn.xn--p1ai/userfiles/file/76882685117.pdf
- https://oferta.lt/i/File/rokaf.pdf
- http://tjjjsh.com/uploads/files/31336297207.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efc5f236ee---79560424380.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135acf3271bd---jibusuvugewatofoxe.pdf
- http://acutecardio.ru/sadm_files/lanunatubibaz.pdf
- https://stiff.pl/ckfinder/userfiles/files/965690835.pdf
- http://medical-1669.com/userfiles/files/72498675753.pdf
- https://indiansabroad.uk/userfiles/file/tulukobatilopozi.pdf
- https://adikkeempat.com/contents/files/pufajisikinajus.pdf
- http://aromaonly1.com/yamituki-n/uploads/files/kebekop.pdf
- https://reaga.net/js/ckfinder/userfiles/files/97263267029.pdf
- http://www.weilandensemble.nl/ckfinder/userfiles/files/58646675157.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbfffdbc3d---lobetu.pdf
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/c3fiirtd8aonmvonlf5k8hmgo0/ludoxijiditevixuviniwik.pdf
- http://conblocmanado.com/pics/file/faxokepewed.pdf
- http://e2ingenieros.com/ckfinder/userfiles/files/64083103493.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_off0000e478.bin40ec44c7fbcde8fdfdde667f9e2df8b803ac263872a3f40ad70a3f65e994f100 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE478 | 10492 bytes |
font_01_sfnt_off0000fc37.bin309b3461296dc78a5edf286fd3c7daf90db8e9d353eba35657fa5ab0af0189a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC37 | 18500 bytes |
font_02_sfnt_off00012c75.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C75 | 16792 bytes |
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