MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm for SEO manipulation or malicious redirection. ClamAV and ML classifiers confirm its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://kalmi.ru/upfiles/files/lopofunasisukijidumobinon.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f252cca226---wotajusuvebokakuno.pdf
- http://abwcolley.com/uploads/files/ledazujerob.pdf
- http://bakoca.hu/files/file/vovumudewatikepegam.pdf
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/nntlu39mirbavpj2d0efb8ooqp/larujavirozipefizedinizow.pdf
- https://narimasu-chintai.net/jcfiles/file/rujajetakufejirurifomom.pdf
- https://invest.pl/userfiles/file/buvezuwusajifadepirofida.pdf
- https://skvacations.com/userfiles/file/3139024871.pdf
- https://aawyx.com/sites/default/imageuser/file/77781331218.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5e0fbc7dc---75410278147.pdf
- http://skyrun-arser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210623020613832458enfd9b.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608a56b4ceccc---nowezodogofazedenobux.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2664a32080---gosewakamir.pdf
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81bddbb12---1984122892.pdf
- https://orangcar.com/app/webroot/upload/files/kifimedefijerexo.pdf
- https://honkakuji.jp/honkakuji/images/ckfinder/files/75949143854.pdf
- http://eko-inwest.eu/upload/file/36497569901.pdf
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/8s0jidj6r933rnhlocm6pqj7a1/kuwefepajesibefa.pdf
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/eec20a21c1ef4b8fc0758e6f473a4547/wowuzikase.pdf
- http://simonide.org/userfiles/file/fojofolabo.pdf
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/77ca56ea6b68dbf70a95d26408f8a8c1/33969925374.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/j3ntv4q2c64u8vfbjshggibf3q/fuzozosudatabivomakitebe.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075bd0d70859---58270900717.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160754ef64e047---3724478506.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=heat+stroke+heat+exhaustion+difference
- 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_off0000ed45.bin916dbb0998536f25d47a89298bb88c8f625845b793258485ea6ec5fbd64e22ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED45 | 10812 bytes |
font_01_sfnt_off00010629.bin51f574cd1128ba96eb67e0d789c2b44f7f78d334e57074e8c037e240789f5427 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10629 | 16348 bytes |
font_02_sfnt_off00013093.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13093 | 16792 bytes |
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