MALICIOUS
176
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 high likelihood of malicious intent. It functions as a link farm, directing users to compromised WordPress upload storage and other potentially malicious sites. The heuristic 'SE_CALLBACK_LURE' suggests a phishing or tech-support scam pretext, aiming to trick users into interacting with the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9a943d2c4---67885216453.pdf
- https://kurek-rowery.pl/user_pict/file/sigoxedanubupi.pdf
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/161304e3da4f57---xukuraxumi.pdf
- http://smolninskayahotel.com/userfiles/file/jaxibom.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a40c05ee77---dukiparabavupinilonovut.pdf
- http://dailygameresult.com/editor/UserFiles2/files/jurofa.pdf
- http://qianxi.cn/filespath/files/20210907055116.pdf
- http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/11664314785.pdf
- https://ambalatender.com/upload/files/46829364223.pdf
- http://bienchidan.org/uploads/files/ranuvatukugidexagoz.pdf
- https://kohphanganhotelandtour.com/userfiles/file/20571668870.pdf
- https://adoz.cz/ckfinder/userfiles/files/dukotovorarejonewarar.pdf
- https://charterfori.ir/basefile/charterforiir/files/jiputuzubibolixanamedijo.pdf
- http://www.awakohchang.com/image/upload/File/8536895593.pdf
- http://historia-bfured.hu/userfiles/file/32845607336.pdf
- http://becskeicsodajo.hu/admin/fck_upload/file/84464217470.pdf
- https://www.tyrtaios.gr/ckfinder/userfiles/files/27443406088.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/49a85958eb402c8b7bd22d666d6b9d30/pejilaruxipejevemefipog.pdf
- http://suaups.net/userfiles/file/luwupodaboniwet.pdf
- http://laskod.hu/userfiles/file/87832734645.pdf
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/ramapugi.pdf
- https://hurghadalife.net/userfiles/files/94081130002.pdf
- https://dadrarad.ro/userfiles/file/fuzufu.pdf
- https://chanty.dacola.com/upload/files/zetaza.pdf
- https://tahubunting1.com/contents/files/mutanagat.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=ls+inverter+is7+manual
- 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_off0000b0ef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0EF | 16792 bytes |
font_01_sfnt_off0000c901.bin22645c44d4936fad1530298fdc4316b31f9525bd73d33031830e411b72c768c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC901 | 15264 bytes |
font_02_sfnt_off0000efd6.binb32b25fe5486d3502c714158bbb919c93fac71d6d94c7f739a387842499bb739 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD6 | 10320 bytes |
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