MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute further malicious content or phish users. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://nomylo.ru/uplcv?utm_term=research+summary+example
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/03fc01f19ee70561aae0493b5a98176d/gapuxerinalitojowaxeganaj.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f3c700b67---widoxekeviwozenanubewo.pdf
- http://naturalmis.com/userfiles/file/86697381135.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/srabu6p9tajf9tnm4q6oo0aqr9/kaporowunowosasufetoro.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8fb98bf8a---45557197154.pdf
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/16093fa0962de8---damizunebafajo.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/4d075a72932758238b9432dd80499a1a/vekuti.pdf
- http://bukharageorgia.com/sites/default/files/file/61532467754.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7fa9485da---tazalu.pdf
- http://innovad-ltd.com/userfiles/file/42184270104.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0bc47fcfa---gevifixijetizusawajulil.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a19ef0a2a2c---88861286867.pdf
- http://ajtoablakcentrum.com/_user/file/nilizawixovijojojafes.pdf
- https://ppuhperspektywa.pl/files/edytor/file/tivadabosewapilim.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7666801c83---reduzetit.pdf
- http://johncarroll1967.com/clients/1/18/1896e795ecc2602204d707ec4e69586f/File/99788915836.pdf
- http://agcslohian.com/userfiles/file/vajibitenumamalukone.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/22d7a3d531a6fb7f41cf878ab7dbcbf0/53686010803.pdf
- http://freewest.at/puvidofokesuwuzugulatul.pdf
- https://holocaustresearch.pl/nowy/photo/file/35943339956.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1905b27ed---puwolokamurijiwub.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/e5e3a65c841c0ddf0f2ed2b4d3e80fb4/jazufuvirax.pdf
- http://stpatricksreunion.com/clients/84553/File/9046857757.pdf
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f8f4deb36---15677204411.pdf
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/51e9033422c288590a75754572d259d5/kelafuxitaxumun.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_off0000fb22.bin02676b19543ddeaf4d289c634bf7f227d2e890d35ca378b6fab92e6ef144ffdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB22 | 16984 bytes |
font_01_sfnt_off00012749.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12749 | 16792 bytes |
font_02_sfnt_off00013f60.bin76aa4d94a42218cd9e55f49c01805f575606c886b82079488b92815795a0330e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F60 | 10584 bytes |
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