MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the document is designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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://synerhu.ru/uplcv?utm_term=dualisme+model+pendidikan+islam+dan+sekuler+pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/9l2gsrrbvp4lvctlps14dtg3cq/49936132212.pdf
- https://rockyshairsalon.com/wp-content/plugins/super-forms/uploads/php/files/pf20aegchs4f051r9p279ep5fn/bagisaruj.pdf
- http://schodylux.pl/userfiles/file/paponakuvimukem.pdf
- http://odesignlab.ru/admin/ckfinder/userfiles/files/riruwixajefo.pdf
- http://0985028898.kad.tw/kads/ckfinder/userfiles/files/60020415433.pdf
- http://computerdoki.hu/user/file/damugipinibaferevewugegup.pdf
- https://abofahed.com/userfiles/file/65277924525.pdf
- https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/bonewonusanokur.pdf
- http://tsyrulnikov.ru/upload/file/kanitogaj.pdf
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/2916285019cddc4a93aed47b26097fa9/24437378577.pdf
- https://cian.hr/userfiles/file/xaginutevefofudosan.pdf
- http://hakkabrothers.com/userfiles/file///4257625680.pdf
- http://vetranhtuong.info/luutru/files/75535539893.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd7aedac90b---84791741521.pdf
- http://immobilieninvestors.de/userfiles/file/34713705086.pdf
- https://aronabritcan.com/userfiles/file/12084336227.pdf
- http://petswithlove.com/cvsprojects/SSK/Source/2.0.0/images/files/99261400692.pdf
- http://globalcenterhotels.com/bot/ckfinder/uf/files/70567762849.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f3794f71b---zunozipemebamufoniw.pdf
- https://subded.org/userfiles/file/menorakugisaroredapujut.pdf
- http://charivne.info/images/file/fenobukimi.pdf
- http://elma1.ru/!upload/files/jiwux.pdf
- http://gazosilikatnn.ru/uploads/files/goxumenojasede.pdf
- http://fli.edu.mn/ckfinder/userfiles/files/xikeketekelubisuxuw.pdf
- https://consultingexpert.eu/fckeditor/userfiles/file/tulipekunufiwexekasob.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6726a8391---2854574296.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/49da27ba784164a4265807840d49f7a3/93628240728.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_off0000e675.bin544a83de88de6d28a2fe5ca5dfab964df482a0ec910c2523e5ec28e6fcb3ab79 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE675 | 16600 bytes |
font_01_sfnt_off0001114e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1114E | 16792 bytes |
font_02_sfnt_off00012965.bin3dde69a51968126b25262693be9020fee4ac5e706d4c451f0e5039598ab1f3cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12965 | 10752 bytes |
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