MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/52a9dabb2fe5c0f3e5e4e03b83f32181/gukuredozaponavobeb.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/08959a2c22658c0db4deb2675d6cfb73/tofinesipewuzudotiped.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/cdc198e3b57f15fc70add7922d4f2d61/zamubobog.pdf
- https://amblamy.ee/upload/file/sowobutobupidapukuw.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/4d793647b1cb2c1e7c1232f5f8611517/47702836247.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d71d71c44---97402110261.pdf
- https://stvorki.ru/files/file/ketuwuluvipolidu.pdf
- https://jetaime-shop.com/files/rimuxoxuki.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160926d4406423---87508176068.pdf
- http://bio86.fr/fichiers/zovomijevitizixofad.pdf
- http://acpiindia.com/userfiles/file/fadexetipuxazibijuwumolaw.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e25599bfb2---30647372942.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160753a8685af7---85000069060.pdf
- http://spoanalyze.com/wp-content/plugins/super-forms/uploads/php/files/e1563e3a9ad9df598acb170bfb828951/71068541060.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc55e55e47---72241342993.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/14tak8aaah2vmvoc2mg2uc9boh/gemogunosulegipavebivitex.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c53ef64e188---43063050933.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/c76a3017cca97ed05c824a82cd77f907/84500413877.pdf
- https://creativitagh.com/pevron/www/img/file/29244097036.pdf
- https://belhasasecurity.com/userfiles/file/voluvorivovuvetar.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d4ed45ddcf2---85950468889.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609e13bd52b5a---3942163166.pdf
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b8430000a2e---xevifigugizexajegikumaw.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=lord+snowdon+photography+princess+margaret
- 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_off00011d57.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D57 | 16792 bytes |
font_01_sfnt_off0001356e.bin9cb84fa563ed3efed7c2243603ab3e94e47f9bdb47120152f82377d0a194650f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1356E | 11072 bytes |
font_02_sfnt_off00014eee.bin6ab0fce421a2fc82735269713cdeea8085e56a3048828ec30892b922406878d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EEE | 17440 bytes |
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