MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a ML classifier and ClamAV detection. It contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of a 'callback phishing phone lure' heuristic further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://laborke.ru/uplcv?utm_term=how+to+reset+ac+remote+lg
- http://americanewbie.com/userfiles/file/95004340570.pdf
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a335e7bcdc2---198612631.pdf
- https://cakenepal.com/userfiles/file/lelovisawobowiser.pdf
- http://aaaexpressheating.com/userfiles/file/35880443269.pdf
- https://pharmnet.cz/ckfiles/files/files/70051444247.pdf
- http://yossy.biz/userfiles/file/41019487333.pdf
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/44953362053.pdf
- http://littlepearlbooks.in/data/eimages/file/88309238725.pdf
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5810be19b---vumamofazubidiniviv.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fa967e03a86---vixumiferozemeno.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/fe47aa39e82cef6a833793464274d2d6/96242361371.pdf
- https://www.jaegeraviation.com/ckfinder/userfiles/files/68474079447.pdf
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/4797e3992442fefc6cd77121ac892089/dozemijediwuvi.pdf
- https://www.gryf-wet.pl/ckfinder/userfiles/files/pepez.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/0063a4d1cd7234200a1df781fb257f0f/19506056467.pdf
- https://burragebrothers.com/demo/jolie/beta/userfiles/files/jurowegevamutuxizo.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f21c009ee---gexemufikaji.pdf
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c5271e98e---sagawebepe.pdf
- https://caribemed.com/userfiles/file/86674688406.pdf
- http://mebelhotel.ru/userfiles/files/simawidi.pdf
- http://monkey-do.net/userfiles/file/51985175747.pdf
- http://dlzj.net/upload/files/20210617182229220678.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_off0000cd0e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD0E | 16792 bytes |
font_01_sfnt_off0000e525.bineec5b55dc9f635c262907e80242a20ba19340b2dedfc519a40b7090ccf53f557 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE525 | 10456 bytes |
font_02_sfnt_off0000fd01.bin14553a6b1f9c40a53b41fa9b40c173d6220778d8aa6b942c504b039cb1c92a54 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD01 | 16652 bytes |
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