MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to numerous compromised WordPress upload directories and disposable hosting sites. The embedded URLs, such as http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4e936a27a---mexaneturemolifowe.pdf, are likely used to redirect users to phishing or malware distribution sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16099f90d3fb0f---92932025052.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/54061ef79cca5960b8b76c527dffc9ab/38401286884.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5764c6e7b---vefotupujak.pdf
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/d0r9bpqgddghp9298m9ms4k2jm/10799307177.pdf
- https://srmresidences.com/images/bulk_images/files/56959459071.pdf
- http://a-kamen.com/userfiles/file/dakekijoxopufovaxulekoli.pdf
- https://stmarys-perthamboy.com/upload/File/vivularazifamamezuvifad.pdf
- https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/4c43888142b0199356557a4e21e2f432/robubokiwujubigek.pdf
- https://magyar-logyogyasz.hu/fileok/file/movidetukipopezurirudekad.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1610707adb0785---tifonodovixakogowirawivo.pdf
- https://duproject.com/uploadEditor/files/mufusinajawodegi.pdf
- http://asbazainville.org/userfiles/file/karaxomominobof.pdf
- http://embeddedhr.com/ckfinder/userfiles/files/rikewil.pdf
- https://orrizon.ru/images/file/dubowodedo.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4e936a27a---mexaneturemolifowe.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b780596ef26---kurawojipoz.pdf
- http://dailitara.lt/bites/uploads/file/9810747329.pdf
- http://nanumed.ro/uploads/files/29429390249.pdf
- http://acevina.com/webroot/img/files/42752118853.pdf
- http://portaldo.eu/contenuti/upload/file/89433911935.pdf
- http://snsi.jp/image/news_file/fukemolotusutag.pdf
- http://thetsaban3watnuea.com/UserFiles/file/zixojotiluse.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/5cc5e355bf341d9ee0b58edfda0b32e0/nepibinizevu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=differential+equations+pdf+by+ross
- 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_off0000b4be.bin31bbb82d50704ada32c2c14c555a081d4663c38e153e85a74f89325c188b84f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4BE | 17808 bytes |
font_01_sfnt_off0000e252.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE252 | 16792 bytes |
font_02_sfnt_off0000fa69.bin18f7b1d78a8d7f0530f6f81390f1c49bbbd9d4eb52bdac3fc14d70b927979e47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA69 | 10992 bytes |
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