MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The primary attack pattern involves luring users to these external sites, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://chcial.ru/uplcv?utm_term=mitchel+musso+long+hair
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160881b0ae43a3---33966838133.pdf
- http://111-orte.de/testarea/cwsCMSlight/media/files/55884829901.pdf
- http://af.ssla.ru/images/fornews/files/mifuloledawo.pdf
- https://preprodpcb.com/userfiles/files/5872207368.pdf
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210504005759429867sx1ta6.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bedc4b5062f---jubalazutaduwolovo.pdf
- http://nanumed.ro/uploads/files/4032875990.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609209bd8db4a---99124156753.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16079404b4d451---31802287765.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e459a39d2---surubefisogakabexujura.pdf
- http://ural-resyrs.ru/data/file/wuroguvut.pdf
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/jmhmnpaaiftq5m0n1sm4hn3m68/32210715214.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/480e3ad6a6b60eb83e05418eba68d2da/31042447167.pdf
- http://tlproduct.com/userfiles/file/9117192872.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160b32909ce2c3---34976838076.pdf
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/b4bcfdb6d1b98fa853a15fbac4877df3/73355192837.pdf
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/s5brkcagh5ojm4nmctv7s3kgrk/88964692526.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/d4ca1863b830c47062b26616663c4759/nazuwabofupilasitezuku.pdf
- http://zdrowejaja.com/Upload/file/65418814165.pdf
- http://zonweringnederland.com/ckfinder/userfiles/files/zurolunivogusojolazufo.pdf
- https://angkagenap.com/contents//files/39668024663.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/0698a106f86547ee3b174b4eaf239276/gegipij.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c53bb57c18c---82052087148.pdf
- http://josephpowellfamilyreunion.com/clients/0/04/04c15d356d3082020e114f8c0300f46e/File/62813094564.pdf
- https://akapacha.com/userfiles/file/7910676934.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_off00010144.bind172e247fd0c2196bc0ad6c03ad155d834cf0184dd897a31269de4b9519edb3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10144 | 10768 bytes |
font_01_sfnt_off000119e5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119E5 | 16792 bytes |
font_02_sfnt_off000131f7.binc6c2176397218ec55298b39e07dd0509c40aaf9fe820199c5cfdf8249f527c73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131F7 | 17508 bytes |
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