MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to external sites, including one hosted on a compromised WordPress upload directory. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not intended for direct user reading but rather as a container for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://lblussana.it/images/file/ludano.pdf
- https://majorsagilekvaros.hu/uploads/file/kipudetosumupilet.pdf
- http://laduses.nl/image/file/82096924355.pdf
- https://visionbrindes.com/admin/fckeditor/userfiles/file/15191479031.pdf
- http://ropesadventure.com/d/files/mizodixovoxer.pdf
- https://alasclub.gr/neuro/ckfinder/userfiles/files/94603534707.pdf
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/8aac6ac9b27ded420cdc1014cbf27160/93507936396.pdf
- http://agenziaimmobiliarecannavo.eu/userfiles/files/22197069480.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1611d4ebf8cd8e---94015127266.pdf
- http://siltherm.com/ckfinder/userfiles/files/febomazexafaxakaxatomaz.pdf
- http://constantcontinuity.com/membership/data//files/lodiripiretupadiwewemi.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/16086f05d75f39---titafazopixujadesogagop.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/1a7c3b15dd151455ee6ca2ca243ea4c7/balugejikodejuv.pdf
- https://humicdp.com/uploads/2021-08-17/images/files/77752397386.pdf
- http://abpaluso.com/upload/file/nokufuduxaxabopanade.pdf
- http://h-n-s.net/userfiles/file/zapizevenadowipabi.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c01a26403c8---serowalikibafipodid.pdf
- http://daiichilogistics.com/uploads/news_file/54956534965.pdf
- https://www.assofmt.org/ckfinder/userfiles/files/8606434802.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bc3e9fa5256---6436466518.pdf
- http://computerdoki.hu/user/file/2519918688.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=mixed+up+multiplication+table
- 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_off0000e31b.bina1efbc1d03f999a71a46996a290f2f712be6f2008ee1bd8554d9d7cfe8682bbc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE31B | 10740 bytes |
font_01_sfnt_off0000fb8b.bin5ac6fbad0f8b4360b2854def7219876d5573379de14573a71be0419662faa557 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8B | 17456 bytes |
font_02_sfnt_off00012937.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12937 | 16792 bytes |
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