MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous embedded links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute phishing content or malware. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8aea3154b---jikakivapujefabizabuz.pdf
- http://studiotecnicodavico.eu/userfiles/files/lezum.pdf
- http://irinaburmistrova.ru/files/95278437579.pdf
- http://atdawnwelift.com/userfiles/file/jiwukinawinijibotumezoge.pdf
- https://briljant-maleri.se/UserFiles/files/77731099892.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/cc5edb3d73bd208b34ee630ccc5aa13d/lotuginusabokiwi.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086dfdbc17e5---wizolopatoto.pdf
- http://jnnycc.org/userfiles/file/paxuboponamir.pdf
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbdaba2a11---janonug.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c4ca2ad60c---23310954304.pdf
- http://interel-rus.ru/test/sites/default/files/file/jiwonuguv.pdf
- https://commonwealthsportsawards.com/userfiles/file/loparozogunavavuboziki.pdf
- http://cortabellanews.com/userimages/59523369937.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088bf15a3f6f---84588332168.pdf
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/d418db94f80ec5d4f59e0d9a3c5fd855/68108747031.pdf
- http://www.majbrno.cz/uploads/files/56400211829.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/6c559c4ce22e6e3d91a971d280e48db4/92122481485.pdf
- http://salsainkonstanz.de/media/files/vonimimotekubom.pdf
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/52fca68f9079d8eb9093a9f67bcfb863/35587498425.pdf
- http://uro-medical.pl/zdjecia/fotki/file/xojinotev.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/cd487011e7f900f1d572e06138ece8c5/nujup.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607efad072b28---baragekerog.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=how+would+you+address+a+wide+range+of+issues+in+your+groups+as+a+school+psychologist
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000102a2.binbfc7ce51a1a9b37382af61f0075eb0cdb972126da031002d338643432d80e6e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102A2 | 16252 bytes |
font_01_sfnt_off0001187e.binca65964e58de5293c65e9d1f49962e1a907d08de2763c225dd6bc598ce70a886 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187E | 17684 bytes |
font_02_sfnt_off000146e3.bin48ac4b23d3c722a863ead1f9594d3a42fe35ec5565d8a3cf67e02cf3ed896fa9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146E3 | 11188 bytes |
font_03_sfnt_off000160d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x160D7 | 16792 bytes |
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