MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery. The presence of embedded JavaScript suggests an attempt to exploit PDF vulnerabilities or perform malicious actions within the document viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://sukienmiennam.com/userupload/files/83708626540.pdf
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/fitamatunosajatol.pdf
- https://7foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/finisojarafoxawakuzi.pdf
- http://liebherr-tr.com/userfiles/file/19513804940.pdf
- http://bangtaisay.com/uploads/userfiles/file/8702214102.pdf
- http://rc-saty.cz/gais/image/file/84627762525.pdf
- http://195exim.com/datas/files/zikigufotiwulon.pdf
- http://rabotatver.ru/userfiles/admin/jalebagedujidaxupe.pdf
- http://stsmcc.org/www/js/ckfinder/userfiles/files/niximuf.pdf
- https://regenerateacademy.com/file/bemifogimezire.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/g1t6ekta0cpo053rh4j90ivpb5/45732432987.pdf
- http://www.cerel.eu/images/wyswig_images/file/14013266403.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0bdc81e74---solom.pdf
- http://dxline.eu/userfiles/file/memodimamiw.pdf
- http://clarksville.net/wysiwygfiles/file/logodiwamufigazesukin.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16137ed796c4c0---36445521137.pdf
- https://mebelihome.ru/upload_picture/dokipozo.pdf
- http://marchmont.ru/imgs/file/54963461626.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16130cfc5a3a78---4162131261.pdf
- http://sitoad.com/bbqjoekey/files/202109072038152569.pdf
- https://bharatiyabhashaparishad.org/ckfinder/userfiles/files/5980764565.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a5c24a7e98---75079996721.pdf
- https://freebcard.com/ckfinder/userfiles/files/bomogizevodiweroruwija.pdf
- https://pfollowers.com/ci/userfiles/files/6631345806.pdf
- http://reelproductionshd.com/userfiles/file/pejasixugenavovakuboget.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=i9500+cyanogenmod+12.1
- 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_off0000f8bf.binfc65194154d6ac504498b66526c164c29dee3b6b1e17e4a02438a8f2430b0ba4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8BF | 19332 bytes |
font_01_sfnt_off00012bae.bin5996f4afbea1b043ef4685a57dd0a9029f18c8ccc29f39c7d7ce8a0f797a42af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BAE | 17368 bytes |
font_02_sfnt_off00014577.binf5810e83074c6ddfd4ed0167b61f3caecd25b69e9806b098129730df215289f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14577 | 10936 bytes |
font_03_sfnt_off00015ec8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15EC8 | 16792 bytes |
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