MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document exhibits multiple high-severity heuristics indicating malicious intent, including PDF_RANDOM_URL_LINK and SE_PAYMENT_REDIRECT_LURE. The presence of numerous links to potentially compromised WordPress sites and disposable hosting suggests a phishing or scam campaign. The ML classifier and ClamAV detection further confirm its malicious nature, likely serving as a lure to download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9939
Heuristics 8
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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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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://aaaexpressheating.com/userfiles/file/tenowupesaviwurugos.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/5mcevmbiufcrj3adukgagm0qj6/rinamutodovepozapelo.pdf
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16073c28b5ea73---muvorukojipaxedanaveri.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/6c7714cb14bb8225bbb782a38cc3e20c/reniroluwekun.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f83e615863---9858326010.pdf
- http://www.zywawiara.pl/pliki/63604602237.pdf
- https://marblobaths.com/app/webroot/img/files/86524286463.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160aa879b001e5---revokafopamavumawakopet.pdf
- http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/p148omo1tg29jnhj73cl1alvm0/6202843479.pdf
- http://citra.cl/userfiles/file/maxobisowipufuzilitalinaj.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160c539ec46464---4107613776.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160aeefa8d0781---tivutovidegeripuk.pdf
- http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64918753344.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160984c0215899---44450871933.pdf
- http://sunnysideclassof64.com/clients/a/ac/acc4ccb49d7935ca36198347b895393e/File/gidasufilakovofugagomevap.pdf
- http://cy2hand.com/userfiles/wefavan.pdf
- http://badaranquehablar.com/userfiles/files/29580861975.pdf
- http://atut-biuro.com/uploaded/file/tadatelof.pdf
- http://stalmost.pl/userfiles/file/zuterevekalavusajatofejob.pdf
- http://xn--or3bi2da319p.com/upload/fckeditor/file/69029865449.pdf
- http://rhoptik.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/paxufepetavurax.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607069d9aa31f---dogib.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ucrpn1bnuosulf62f5hrbbpgi7/memositad.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16077f1c1841bd---16709476691.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/f0df91d8fea14f2d609feee1135421f2/tezigaku.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=buy+here+pay+here+greenville+nc
- 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_off0000f2b1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B1 | 16792 bytes |
font_01_sfnt_off00010ac8.bin946fd89d2206ffe55158d3edb74784ac3edc91741311b8335d5c4f22346444f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC8 | 10600 bytes |
font_02_sfnt_off000122f3.bin1d7c2c829247446849bf70081883df5602d2e4462a5945a446979c9c64b8347f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122F3 | 17180 bytes |
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