MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to various domains, many of which are hosted on compromised CMS upload storage or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The PDF structure and embedded links align with tactics used to lure victims into visiting potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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 http://xboxheerlen.nl/userfiles/file/tezevosatikesoxuwuvud.pdf
- http://zge-led.com/luodan/images/userfiles/file/zabukaloxug.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/t9ib5avdm51i1vv3gsqkhgq3t1/pemamogidakedabekiza.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c4d9c713f---11822933994.pdf
- http://szymonadamczyk.pl/uploads/fck/file/5392699392.pdf
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/180bbb761093d1b937881b22b90b5855/mekixitekinomeludeza.pdf
- http://servis-hradec.cz/files/file/sopopefizubufin.pdf
- http://austria-ex.com/images/blog//file/suxuzipupali.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/5d544913f4de23b8a0b1441eb286dc3b/rafazijaf.pdf
- http://baohanhranghm.com/upload/img/files/suwafajinokanu.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a7628d57cc9---xurug.pdf
- https://heatingboiler.ca/fck_upload/file/vidijoluwujebazuse.pdf
- http://pnmanagementsolutions.in/uploads/19067881620.pdf
- https://solo-enoant.com/content/files/files/37501711090.pdf
- http://acmemask.com/upfiles/editor/files/82965804731.pdf
- http://vtvxm.vn/userfiles/file/fanabo.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608280e950fb7---xokab.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/c66bdde6b79f3b70065b5ed8faf4eb92/papalurigidigofit.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078556f039c2---depezemodefujeludorulav.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/c936f2ec9078cecf1b15611b6bd75c3c/32740827352.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9127b83ba8---sokuvigujaxipiwif.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609972d59416d---96891282162.pdf
- http://originalcheck.it/public/img_admin/file///46220416172.pdf
- http://panziofabian.hu/fck_kepek/nudutokerilupemimuwaf.pdf
- http://musikpark-live.de/userfiles/file/piwaxowupukexegozu.pdf
- http://a1-automotivegroup.com/upload/files/ramiditinisugowuraleku.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=verbs+to+use+in+essays
- 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_off0000ee9a.bin4413e42eb4b04001a22ed56c3105b651509fbaf6f4fa00b2ba8263f28913607a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE9A | 10380 bytes |
font_01_sfnt_off00010642.binc40cb1bef8e4052024ea5e6f690c2ec72cd8bc5a4561e4fc517117c4ccb5c6f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10642 | 17040 bytes |
font_02_sfnt_off00013235.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13235 | 16792 bytes |
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