MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a link farm pointing to multiple compromised websites, suggesting an attempt to redirect users to malicious content. The presence of external URIs and link farms indicates a likely phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ac90a6cb6---33277648360.pdf
- http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/42479436204.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/474970d84f7c34f79153367241f7ca12/sizorufeg.pdf
- http://edwardlankin.com/clients/86087/File/serobujufokega.pdf
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/230976cc23f874258bc75f6188d88786/fubufujidowanuduto.pdf
- https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/b6aba9fea74cdce6c1342dcaf1f19646/27778741551.pdf
- http://tvoirostov.ru/ckfinder/userfiles/files/24180135657.pdf
- http://reelproductionshd.com/userfiles/file/wuvepesofu.pdf
- http://quiltingacademy.com/fckeditor/userfiles/file/logiwomewamuwivilamu.pdf
- https://marblobathware.ph/app/webroot/img/files/zojojunakar.pdf
- http://stringladies.cz/userfiles/zenixed.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607bfc30a8adf---magazipapogoki.pdf
- http://dansensvenner.dk/imagesfile///sutirufomozipoga.pdf
- http://hanlacsclub.com/ckupload/files/tizegalukotaxufowuguwim.pdf
- http://phillipsbrothersmill.com/clients/6/65/65192871cce8a6e36080a9ebd2808b02/File/97386983566.pdf
- http://banhangcongnghe.com/upload/FCK/file/zalamedexotepudoladef.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac47aa4b95---wujufutofisezoseduxo.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609020791bd1a---pirewadepifumulaba.pdf
- http://szao-spb.ru/images/news/file/rusavuzawomojesufujaz.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160c46780201b3---66282149380.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/mfkoek2cva03aqonp267ob58bs/26233202072.pdf
- http://japan-railpass.info/images/blog//file/24279154271.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=zor+ebob+ekok+problemleri+8.s%C4%B1n%C4%B1f+pdf
- 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_off0000de5b.bin557c7fb20f246fc6f217da6c19c20fdde75252eb757048a180d53f58805d4b37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE5B | 18720 bytes |
font_01_sfnt_off00010c99.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C99 | 16792 bytes |
font_02_sfnt_off000124b0.bin52c1f5338266399cd61dd28003c7711df0f746e87c9d794dd14a5940b94ffec2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124B0 | 10912 bytes |
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