MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which are hosted on compromised CMS platforms or disposable hosting. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics, along with the ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION firings, strongly indicate malicious intent. The primary goal appears to be directing users to download files from these untrusted sources, likely as part of a phishing or malware distribution scheme.
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 http://megat.pl/uploaded/fck_files/file/88047237666.pdf
- https://contabil-fiscal.ro/mm/file/lasolivujido.pdf
- http://wallsfamilyreunion.com/clients/876683/File/97306045443.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bae8dd877f1---81418168976.pdf
- https://tecnibat.net/uploads/archivos/wipum.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/mf8vkkjrlhmptljv07ui204o85/22850412969.pdf
- https://thai-airpark.com/ckfinder/userfiles/files/43244324600.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/kni74phqotn3ihdtg3v8mo00r8/16214569796.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/53783258164.pdf
- http://anaminfo.com/attachfile/file/sabomevolorolavopi.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/4be706d160fd500e51179107dc79fb69/33299373198.pdf
- http://weddingdiy.cc/uploadfiles/files/20210605_023249_7948.pdf
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adb87ce76c6---zizunibuzejobatirube.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/523dcecd4478f4f7124c60ce580b9ded/sinalewixubudekade.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609878d1343ed---pazut.pdf
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/4a162601e4d6a7e8cec152df552c12a8/67025895929.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/uqtqni1j0bqcrc3ln1ubdju900/46204206018.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee639cce6e---71700500590.pdf
- https://benqmusicworkshop.com/fupload/file/supodisesi.pdf
- http://driver-jazda.pl/upload/file/86099139233.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/d70af3bfda28cb361d2a9b335b78b8a7/fawusurafovozemilateluje.pdf
- http://ip-golubev.ru/ckfinder/userfiles/files/menirojanuzozodovemid.pdf
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/d2fe875c49505d6e23ddea3187aa8356/8480777214.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075f997b459c---towepapuledunuwomavu.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160835270e1438---48666973884.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=bully+anniversary+edition+full+game+free+download+for+android
- 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_off0000f344.bin267466a986237405b6954d50eb806e91a2cad19ca48b8d19c828d44b4286da20 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF344 | 11116 bytes |
font_01_sfnt_off00010d18.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D18 | 16792 bytes |
font_02_sfnt_off0001252a.binae87d5456f1c35314b4cdfc7bbf4ddc4ff8650866506871d4b2e21d86c69db8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1252A | 28748 bytes |
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