MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a large number of external links, many of which point to compromised CMS uploads or disposable hosting, indicating a phishing or redirection attempt. The ClamAV detection and ML classifier further support its malicious nature, likely serving as a lure to download further malicious content or phish credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://shiraz.sk/ckfinder/userfiles/files/valinefirasevubudamowozuz.pdf
- http://btc-ltd.com/upload/file/gawegomavufofeza.pdf
- http://poltinka.ru/userfiles/file/pirekajamewutalimajubaso.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/90a257fb212d7865c8e053b6b2f3f02c/kiwapodapateburekowepe.pdf
- https://kawanmto.info/contents//files/1487442845.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16081f90ac4f47---bokezezosenudefa.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607689620ec50---tijok.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/50d48c6344eda1430da912dac3ec807e/movapewusurazab.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/672244367e6b9924305c98e3bfe8b2af/90598073518.pdf
- http://cintabogor.com/Uploads/userfiles/files/xivepus.pdf
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/47abf621480b0c5a07ba88691b8121c0/sewomasapenukulekuwu.pdf
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/89131974937.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/283c941594fc7f2b7f3bcabef498c638/55934134899.pdf
- http://maxidmum.com/images/upload/fck/file/32252939530.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fffa5863b1---pebanakarujurowexi.pdf
- https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/e87c1aa25173178d5d01f8240f0f30b4/35687003832.pdf
- http://kmkonsult.cz/userfiles/file/kijokiwumug.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/dadagukupi.pdf
- http://sclifeguards.com/clients/16854/File/xekepumuzudujufugi.pdf
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/15a3f47d78f736bcecfb4ae627d9bdaf/31596052833.pdf
- http://lumieretvie.com/userfiles/file/64189318184.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab251c4f0c---49211573002.pdf
- http://aihyang.com/userfiles/file/lawukesupilidifisufuzid.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=silver+queen+corn+harvest+time
- 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_off0000ed08.bin44ba9bbdd780df56bc26f9f72cbb8c7fdbdc18f978d21d708c5a656fe3fc8eaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED08 | 18112 bytes |
font_01_sfnt_off00011d1c.bin01348672abc89aaae8bd02b4b7c695e7e641353ae1c8b1c4ba56e2cc0c4b5f47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D1C | 10884 bytes |
font_02_sfnt_off00013613.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13613 | 16792 bytes |
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