MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting it is part of a link farm designed to host malicious content. The 'SE_CALLBACK_LURE' heuristic indicates the document likely attempts to trick users into calling a phone number, a common tactic in phishing and tech-support scams. No scripts were extracted, but the presence of external links and the callback lure strongly suggest a phishing or social engineering attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9928
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://medvor.ru/uplcv?utm_term=js+element+add+style
- http://bsp-oblspl.org/ckfinder/userfiles/files/lebur.pdf
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/bfeebd42b150255d75fd0d1679b9f17d/lumenolokezuvova.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160be420788bf3---nurusarapodubakuz.pdf
- https://moto-trend.cz/public/files/fck/file/60214568260.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088657cf26df---pepuvorusinid.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0152203629---bowofakexubixona.pdf
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/80e50f43822611224bc5241d1e4c0485/78418026560.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bbcfade6006---21784228977.pdf
- http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092e363de684---91056078867.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/pi8pusmgkbtg0cfnjp09vjfr91/nibuji.pdf
- http://laser-piskovani.cz/democms/userfiles/file/7651463050.pdf
- http://exmar.it/foto_fck/file/bikiboj.pdf
- http://www.monts.sk/upload_images/file/83388346389.pdf
- http://exito-opakowania.pl/userfiles/file/tanali.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16080bf627769d---nikonulogipopi.pdf
- http://cosyromania.com/media/file/47363346542.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609eaf4ac76ba---dizatabi.pdf
- http://iltorg.ru/upload/file/90101280998.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160761b887f78b---tirefagagulopoza.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f668618762---85730427666.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/ejid3vv824fb3jthuhau2onkni/finubozewita.pdf
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/ho8efhk068hhl4n04qar3it5f1/52891788554.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/b328b12918fca5119ddefa1cccac995d/vukabajuzifu.pdf
- http://nadiadsa.org/userfiles/file/loralome.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_off00011a3a.binb23e33f1cea5998731b4a36454dbcc5395ec23dd868b0f58a411f33342f237a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A3A | 18076 bytes |
font_01_sfnt_off00014a3a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A3A | 16792 bytes |
font_02_sfnt_off00016251.bin3e9825ee6a591f3ac1a66745039b3631f586b795d4e4780ce9faade53f02fb6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16251 | 10204 bytes |
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