MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload is intended. No scripts were extracted, but the heuristic firings and URL analysis point to a malicious document likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 6
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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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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://oniceh.ru/uplcv?utm_term=easy+fluffy+slime+recipe+without+borax+or+glue
- http://stlnsk.ru/uploads/file/wipewakup.pdf
- https://mokhalasati.com/userfiles/files/fodupofutefavikupusa.pdf
- http://baikalspring.ru/ckfinder/userfiles/files/kanibed.pdf
- https://africanresearchcenter.com/userfiles/file/24040097817.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f619c19b2---37156329734.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec88b79dd9---mopivaxefopa.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/de9de22f664a04a8cf1c39a83f59d08c/94084480727.pdf
- http://barrybusiness-crm.com/ressource/devis-photo/files/xowugotevezetu.pdf
- https://vibangnhadat.com/uploads/files/83145311275.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/9jfkrdh3a66abccqe99h2s5p64/2629044570.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/l1ujv0hoo4r38hortta3k3nbs3/29190954027.pdf
- http://anhuifan.com/upload_fck/file/2021-5-30/20210530073803724263.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/u22o28jdhsjqtkia70r6hpbf10/52844888162.pdf
- https://primer-spb.ru/files/files/88490681402.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160a44347329b8---supimipireju.pdf
- https://blindnow.com/userfiles/file/finavabarepor.pdf
- https://caribemed.com/userfiles/file/kofoponojiwadoborosodefos.pdf
- http://orchid-daikanyama.com/userfiles/file/palav.pdf
- https://minipowerpack.net/upload/files/69565158679.pdf
- http://izumrud38.com/ckfinder/userfiles/files/22726001366.pdf
- http://wo-kop.pl/userfiles/file/65348451370.pdf
- https://alohasafaris.com/files/dovunutuwemilelowuzede.pdf
- https://maturana.cl/upload/file/vifunozijisafegiwop.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/5e14cf3ed1bf7df248219c3ac208f174/39054641829.pdf
- http://bhavalaya.org/ckfinder/userfiles/files/rixowalonomemeku.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_off0000f609.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF609 | 16792 bytes |
font_01_sfnt_off00010e20.bine44e8f104986bcca53e54b3d516210e158ba2b9648bea26064947fbc883a0c0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E20 | 11348 bytes |
font_02_sfnt_off000128bb.bine7cefc53fa311a8017dc97ca04f9f4abaf60cf4b91143dc3440224d51eecd18a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128BB | 17016 bytes |
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