MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains a link farm pointing to multiple domains, many of which are hosted on compromised CMS upload storage or disposable hosting, suggesting a phishing or SEO manipulation scheme. The document body is heavily obfuscated and unreadable, providing no direct content clues, but the heuristics strongly indicate a malicious intent to redirect users to external, potentially harmful, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://acgroupenterprise.com/userfiles/file/lelerefafelosaz.pdf
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0fb9aa799b19f751beafbe06002b5b6b/79919463866.pdf
- http://nutronicltd.com/userfiles/file/12957679761.pdf
- http://akinmedikal.com/uploads/file/1907434400.pdf
- http://nickels.design/ckfinder/userfiles/files/14290794360.pdf
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/2qtkid2dsv3jf9cv5mfv9edvvi/ruvog.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/d9a15ku94a4iqrb3ulficvobe2/vador.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a88eacacb56---27088740053.pdf
- http://www.deep2001.com/images/library/File/60610507770.pdf
- https://eyetracking.pl/userfiles/file/bomoriwalidodivevod.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160983e85eb4b7---vadekexuwokujoxut.pdf
- http://train-in-japan.com/images/blog//file/vazowotobodoral.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5af857ec4---rupagobupaxil.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984af102cbb---53187899706.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf9e1860263---viwudilig.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608eeb6e8da6b---22866890862.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/6c411e9a4d4f3f518219017db6480b8a/41411077467.pdf
- http://antifftech.com/uploadfile/file///2021051007022175.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/f62216b6fa08d4225124f1f47e3e2414/mozofigareponofefatapak.pdf
- http://macabrey-luthier.fr/data/Files/63035954187.pdf
- http://studioingtassinari.eu/userfiles/files/dudezikekamusizejono.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/443hm4j8igk5m7jebbrnvme77o/pofubewemawanijulelalu.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea6b9c6119---jexozijowupivugimixiz.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed610b0745---78720593941.pdf
- http://shinies.ru/img/lib/file/ranaduxubaradojomozuga.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=level+156+word+connect
- 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_off0000d037.bin72c38f61ad73e2d9ebc78c0600e96498b6d4b5be273f64207e866e5553c5a36c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD037 | 17672 bytes |
font_01_sfnt_off0000fd47.bin9792922c36447ac48d7d8f8bbcdfcffbd8e88692cbeb424d373fe982d9006060 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD47 | 10404 bytes |
font_02_sfnt_off0001151b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1151B | 16792 bytes |
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