MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting it's part of a link farm used for phishing or malware distribution. The 'SE_CALLBACK_LURE' heuristic indicates the document likely prompts the user to call a phone number, a common tactic in tech-support scams or callback phishing. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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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://crysiq.ru/uplcv?utm_term=use+of+cantharis+30
- https://addsfly.com/userfiles/file/neluda.pdf
- http://chinhsuasolieu.com/media/files/jewasig.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609444460426b---bofusozuwibov.pdf
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/fbaf3b814c9b28d7a244834d0456b1d3/kadobupegozijafuf.pdf
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/a672aeab02bf67846cd4c7b8bbb220e2/kawiwiletefo.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c67e16e63---96074822739.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/42f590b018b732a45b1cb421e7a0e17a/zuwonobirog.pdf
- http://gilendor.cz/userfiles/file/wikurusokavo.pdf
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/0b1a7827d87562e405a18f55ead9b951/73521853859.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077c1581cb09---xomazunamapikonurunomowip.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160adf971d1976---50138474240.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b18fcbd5964---tibedafimedigunat.pdf
- http://galgalesh.com/userfiles/file/90745805579.pdf
- http://gramercygrand.ru/files/file/45271835064.pdf
- https://craftsmancuttingdies.com/wp-content/plugins/super-forms/uploads/php/files/fp4gl6sinqbhplhhadqfkvqgok/71531630598.pdf
- http://teormech.ru/teormech/usrimg/file/91078836178.pdf
- http://hurtmar.pl/Upload/file/79565527323.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/qp6npuf2bvprvv50jvke7cem53/23300846027.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94b2d9f59b---lufemorerave.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075eafadb84a---18520684134.pdf
- http://bafiti.com/sklep/userfiles/file/96365995571.pdf
- http://alnoorcity.com/userfiles/file/moresiluxixolo.pdf
- http://srividyaastrology.com/userfiles/file/89637109868.pdf
- http://humanitool.ru/userfiles/file/desodanusubel.pdf
- http://synthecinter.com/userfiles/files/lazuvekuxatamabegebo.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_off0000eed4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED4 | 16792 bytes |
font_01_sfnt_off000106e6.binddf74e14b4c3bfeca9cc463e4ba59cb2525a45c603f94ee49474d4be1016bccd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106E6 | 17960 bytes |
font_02_sfnt_off0001359e.binc0faa4476fb807ee6567bd00681d76df0e765a33c6ce21546720f87265067ac8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1359E | 10688 bytes |
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