MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a callback phishing lure. The document likely exploits a vulnerability to execute code, aiming to trick the user into calling a fraudulent phone number for a scam. Multiple URLs were found hosted on compromised CMS upload directories, suggesting a distribution infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://aimara-bg.com/userfiles/file/kasuxitexibofajexe.pdf
- https://www.speeddating.lt/speeddating/ckfinder/userfiles/files/74494889821.pdf
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16091ff6609f17---bolereraxojuzov.pdf
- http://fobosgrunt.ru/files/ckfinder/files/renirutekafudufoxuwino.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a71c8db2983---rijijamuzovaj.pdf
- https://apexsafetyproducts.com/ckfinder/userfiles/files/jojexuzulas.pdf
- http://aal.tw/uploads/htmlupload/files/likuxukupu.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c678f006c61---73069138838.pdf
- http://llux.vn/uploads/files/xojomibaviveboduwifudiwij.pdf
- http://avalon-essenzen.at/userfiles/file/93475858424.pdf
- http://artin-intranet.com/ckupload/files/jefuwew.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/hve3vlh0opgr51g5ogf519tp16/botexivikeve.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107a0dc45bf8---lubibeketitov.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608130dd1d252---pisowozuzegokidiwagefifi.pdf
- http://siembra.me/uploads/files/60970818480.pdf
- https://groupunsur1.com/contents//files/66818516621.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16129f77d56bf7---tofukaw.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609de3654e46a---zezanofit.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/543cad5b1cf33470d8c3ae22e943afeb/2577275639.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c59c23537ef---fojazapuniwisipojonivize.pdf
- http://lblussana.it/images/file/nululatikekuvilinemepa.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/85b88172fb04f05441a86c49418af725/vimazug.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa90308db26---15523211136.pdf
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cacacc194a0---bejazu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=english+listening+and+speaking+practice
- 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_off0000f3fd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3FD | 16792 bytes |
font_01_sfnt_off00010c0f.bin6ba8f7766b071ef659579274c922c71479fd167527a1e35ff2e9989c5758efc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C0F | 17904 bytes |
font_02_sfnt_off00013a8e.bind29aea6e19bc447087740f7e00ace71e808ed60d72a74d61c188c6c0928cf4e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A8E | 10748 bytes |
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