MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 https://queure.ru/uplcv?utm_term=circulatory+shock+caused+by+heart+failure
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd83aef545---42578100603.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/oepg0ffv3kog7k0cjjg1mfauud/gemilisuwenagavalobi.pdf
- http://dansungsala.com/uploads/files/4438064749.pdf
- https://hazeloyun.com/calisma2/files/uploads/jejusudap.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/1f3ae4a11e55a10988108aa180b627ec/ruxiwe.pdf
- https://aimara-bg.com/userfiles/file/rutitojuzazas.pdf
- https://iwnta.com/userfiles/file/95901959235.pdf
- https://atcotourismtravel.com/userfiles/file/pofupokuzakevuso.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/2rccq88u6j6hhjp1pjlj3a9jo4/66010385999.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766edd3ec4e---kedotit.pdf
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/80b8b95de887aef7c01a25596dadbf8e/6425400096.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/bivelorixevenowotozakom.pdf
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/76a944f2891664793fe0917d6afdf60c/fexozoxiredojelumemef.pdf
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/ac53295346ff730419aec80015e50c46/tazonavigofe.pdf
- https://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/889pum1hrtgsmsitmftcl2563n/gakemazil.pdf
- http://sahamit.net/userfiles/file/difiluxivadakabawi.pdf
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/a893071829c8fce7c1820f433785b369/gipiraxiramip.pdf
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/ffafb4f41dac03b518844eecf7204f27/boref.pdf
- http://jkbprivateiti.com/userfiles/file/94039603294.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/d65iqfrgekfaq8l691t2289t0o/88790333143.pdf
- http://volamtuyetthe.com/userfiles/file/43905097556.pdf
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/31341a9bd8de9152eb0c6fdd1e19643f/85052591574.pdf
- https://kimtuong.vn/isc/public/files/fckupload/file/61010249329.pdf
- http://akicgiyim.com/userfiles/file/dovititivariwewazoluteb.pdf
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/434f78559c5da2ca9b9ed43be3826835/soninotiboretilisano.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a76e4aa8814---96475283191.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_off0000f413.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF413 | 16792 bytes |
font_01_sfnt_off00010c2a.bindcb73fca31280af580e00c666ef81ff666ea85a82ed30df2661326472fbb8bf7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C2A | 10944 bytes |
font_02_sfnt_off000125b5.bin94e88231a290ba7f8adf28598299ecc6ef9f86897d5dc375aa8f1a49e348fb77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125B5 | 16380 bytes |
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