MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, many of which point to compromised WordPress upload directories or disposable hosting. These links likely serve to redirect the user to a malicious payload or phishing page.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 6
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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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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://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160716d96294a2---sarogemomadujez.pdf
- http://darienhigh69.com/clients/866565/File/vujit.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d01f7fdaf1f---90438588570.pdf
- https://airflow-skateboards.com/upload/file/543498738.pdf
- http://daechienglishpark.com/ckfinder/userfiles/files/boxebifurimuf.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1607881af0e397---33566814092.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607163ed1c026---9550371433.pdf
- http://bawaconstructions.com/editorData/file/lusegodolukeguwuvowozuwi.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/09f2c1aad3d9252ee5a5d264570ac642/89269481338.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/cd819bd586f255fe9df9d94d061915aa/waxobajumi.pdf
- http://kxnjl.com/userfiles/files/jisisimenukabedarakas.pdf
- http://japan-railpass.info/images/blog//file/74894776879.pdf
- http://balogmihaly.hu/UserFiles/file/17802687369.pdf
- https://agatanorek.com/files/file/pajevotonuvexozoxivi.pdf
- http://ehomeforeclosure.org/images/file/vexilotojolipiremoxin.pdf
- http://veoguidecostarica.com/ci/userfiles/files/89778902.pdf
- http://adveotec.com/img/file/4875129764.pdf
- http://www.giuseppe.ru/ckfinder/userfiles/files/tunilazuforotife.pdf
- http://lyshiying.com/d/files/48107207368.pdf
- http://muzeumostrowiec.pl/obrazy/file/sezojewibanulogisawex.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722b5d2c870---xewenunodekujozivixinaxod.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/4lb2birqrvkot0lgq5tpdrc641/jenafaxutiguw.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/95451ba19116530bed9b2972bad83a6f/25801788158.pdf
- https://cualuoihoanmy.com/uploads/userfiles/file/98354277877.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=myopenmath+answer+key+algebra+1
- 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_off0001003c.bin6448c1bb4b572bc48128109d1b0baf8c17251e852bb9093bf041652922d5a910 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1003C | 11084 bytes |
font_01_sfnt_off000119d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D0 | 16792 bytes |
font_02_sfnt_off000131e2.bine8e2f1fbccfdecd699a03edca4d63236db624b00228ef72930a301c126693bb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131E2 | 16744 bytes |
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