MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. Heuristics indicate it functions as a link farm, with several URLs pointing to potentially compromised websites or disposable hosting, likely to redirect users to malicious content. The 'SE_CALLBACK_LURE' heuristic suggests the document's content is designed to trick users into calling a fraudulent phone number, consistent with callback phishing or tech-support scams.
Machine Learning
- Nyx PDF Classifier malicious score 0.9940
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://mimarkamilozkartal.com/userfiles/files/46645560157.pdf
- http://choinka4x4.org/cms/files/file/91322159308.pdf
- https://polaria.cz/images/file/78589804609.pdf
- http://joy05.com/_UploadFile/Images/file/fifipowanit.pdf
- http://www.praasia.com/file/files/xomepubozusexabi.pdf
- http://buyyoutubesubscribers.com/ci/userfiles/files/mubegivupi.pdf
- https://lostfoundglobal.com/userfiles/file/sevatijemepa.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/uf37p5q7f6pag684hqn6b39625/69165905775.pdf
- https://niboparis.com/upload/fckeditor/file/1630831772_1.pdf
- http://scro.ru/pic/file/39041900024.pdf
- http://dexgerm.com/data/file/userfiles/files/lasubalogizepija.pdf
- http://karthikeyanjayaram.in/userfiles/file/woxiz.pdf
- https://claudiodituri.it/uploads/xelizedajefejev.pdf
- http://artediapharma.com/upload/files/72270062613.pdf
- http://greece-ex.com/images/blog/file/75541730543.pdf
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad670a4af9---wodidipewujokexakifogod.pdf
- https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/67311200496.pdf
- http://ahkjt.com/upfile/file/30217329345.pdf
- http://dream-mebel.com/pic/file/6424616362.pdf
- http://burattinojatek.hu/userfiles/file/pafubodek.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16143927f27236---gudovebabuwero.pdf
- http://files.ibiza-ferien.de/file/ludusurapin.pdf
- http://nextlab-semi.com/files/fckeditor/file/58210333669.pdf
- https://amthanhanhsangchinhhang.vn/upload/files/24137175137.pdf
- http://suvagcentr.ru/userfiles/files/sugitulunosabavigapesimu.pdf
- http://myphamlulanjina.com/upload/files/87083039970.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=instagram+apk+android
- 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_off0000b7fa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7FA | 16792 bytes |
font_01_sfnt_off0000d00c.bin6fc8d9f6fd0de4f0b995b8eb6d5f894652848e0e72de9bb326f41bd28704d1ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD00C | 17180 bytes |
font_02_sfnt_off0000fbb0.bin65dd296095439eeb1f80ecbae1ba149ffdc2ac0ea66e8ce134ba5c67f613c364 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBB0 | 10600 bytes |
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