MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload storage locations. These links likely serve as a distribution mechanism for further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9804
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://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/aags9h701a0emhhesvnjbsa3i9/zenomesorawapoxologela.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/96896223cf50c8184a6eb262fbf6e1b7/ferogi.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/8d4953900c11f3314dee9562f3858394/nabibigib.pdf
- http://www.deopendeur.org/imgUser/file/metadorasosukavinonurilu.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a7887c28246---rajalakuvexonopala.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/ojpirpvlhmrn3gp18knfvv4vfu/99106048071.pdf
- http://stellarp.com/userfiles/files/sitoxukifadilitanap.pdf
- http://tv-sat.cz/userfiles/file/fadagin.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e547cecf2---nupegirar.pdf
- http://srlamn.com/clients/0/00/00e84243199fd86ca7c15d66a0237eb0/File/pemejuxobat.pdf
- http://paradisetourkorea.com/FileData/ckfinder/files/20210618_D32F17A883352417.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160951fe2e8de9---japupotatijuwezoxoku.pdf
- http://droprint.my/home/ququ4923/public_html/userfiles/file/zonimasurewipumotiso.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/325731514a6c6c4a36bf8c63ea8215af/86472842473.pdf
- http://fotossc.pl/_files/file/ruwifiwunuwenofemarobinuk.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/hhjkrgv2044ldq15qtknnvf38s/dubogusig.pdf
- http://flgr.ru/files/files/96980926309.pdf
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/264c56f5c6bee81d7cb9ec8a5092653c/zitawepejapefosugew.pdf
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc61669ee77---93002310966.pdf
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/33589483638.pdf
- https://coil.hk/upload/files/mamajuvebev.pdf
- https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/5msl9t9sn37ugnsbkeskvr1bf2/1499957712.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/926a03ee55f82c29e426aa43ef4363ed/35997673415.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/pig4vqj2jd7crt3s2o9nf0a5b0/geriletuwop.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=yap+in+chinese+character
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001288b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1288B | 16792 bytes |
font_01_sfnt_off0001409d.bin92f13cf50993c1c4361652b74a9274d423b564c91de5a21e00903b3b71ed8280 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1409D | 18232 bytes |
font_02_sfnt_off00016fc4.binc748f1762845592333721c2930c128d9149fa9a5eaea2e4067553dd8253a8221 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16FC4 | 47676 bytes |
font_03_sfnt_off0001ec96.bin6cf05d6c2d90d3af62b466b7fbdc74476f400368fafef17a2a788eb63abbee71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EC96 | 10288 bytes |
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