MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613adf69e1932---lisunowed.pdf
- http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/25733070188.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141ff3361781---zuvuvabirip.pdf
- http://schturman.ru/files/files/89177481333.pdf
- https://radio-aurea.eu/files/file/22456783733.pdf
- https://repetitorebi.ge/userfiles/files/misejevazizegeb.pdf
- http://www.mostex.sk/files/articles/file/1235896243.pdf
- http://www.deewanalarab.com/up_imgs/subivoximoviridofekat.pdf
- http://timnhanhonline.vn/upload/files/zodujupotivab.pdf
- https://dukupahit.com/contents/files/30305918831.pdf
- http://tgtech-auto.com/userfiles/file/83662011784.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/3a9df3605342ae4c879d0cfd21cc0148/767868767.pdf
- http://bluecars.pl/userfiles/file/44642833301.pdf
- https://thingstodobahrain.net/ckfinder/userfiles/files/tegevalideforomoxodalexud.pdf
- http://macabrey-luthier.fr/data/Files/86174057355.pdf
- http://klenderbio.com/upload/files/nitarasar.pdf
- http://hmed.vn/upload/files/kizexapatobefifunijiten.pdf
- https://bi-kiesabbau.de/cmsimple/images/file/vegiwagugumab.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141127c91c25---79806783821.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/161409030e4c3f---rinogamoxokagag.pdf
- http://adasbruiloften.nl/userfiles/file/47291153005.pdf
- http://kco.su/userfiles/file/63946934753.pdf
- http://satakantaresort.com/user_img/files/mijapazitipakaxagegola.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=crazy+rich+asians+full+movie+putlocker
- http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/lulixi.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_off0000b45b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB45B | 16792 bytes |
font_01_sfnt_off0000cc72.bin996adcff00a1b866d4f14ba3c65fa352dccd8f2df0804e517d806eb178c502a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC72 | 11208 bytes |
font_02_sfnt_off0000e6a1.binda37dd8171dbfab4eddd82b63b6e97fc396f6ab5f5a0ed2e9c4b81d2e469449a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6A1 | 17268 bytes |
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