MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm used for distributing malicious content. The presence of embedded URLs and the nature of the heuristics indicate this PDF is likely part of a phishing or malware distribution campaign, potentially using JavaScript for execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://marcelponjee.nl/ponjeefiles/file/sufosikirowuwafiga.pdf
- http://gymostrov.eu/gymostrov/userfiles/file/81204379226.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/5042d435a93d3006376287557c0e7fe2/tijudesawupagi.pdf
- https://petrovsky14.ru/docs/files/27613186077.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087cd8aaafa2---54665675199.pdf
- http://mtcongnghiepxanh.com/upload/fckimagesfile/xetexozigolofewa.pdf
- https://napraforgohotel.hu/upload/file/9253060438.pdf
- https://pima-alarms.rs/slicice/file/69497369553.pdf
- http://www.yemany.com/yemfiles/files/52670646318.pdf
- http://tomaszskiba.com/userfiles/file/kevusulumariv.pdf
- http://antwerp-reefer-tournament.be/argt/files/82518277449.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/b6f1e896f40fef3444b80d00d06d680a/27103483291.pdf
- http://anhuifan.com/upload_fck/file/2021-6-25/20210625201839852975.pdf
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160810017c082a---disenevu.pdf
- http://koreadramatour.com/FileData/ckfinder/files/20210710_94CA3F917278AD20.pdf
- http://superplasticizer.cn/d/files/bokifemesu.pdf
- https://kipass.fr/userfiles/file/63486755763.pdf
- http://greenworx.eu/images/uploads/files/zuzifozebob.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea4bd9f06e---mokofutixi.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/056d0f2b6fc7fb32304ea984b30e8e46/50000971691.pdf
- http://crmloccitanecr.com/campannas/file/95245822811.pdf
- http://berbun.com/user_img/file/wowivomaxuwumaloni.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f36615ed40---madunelalebojawavanuzem.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ma4idfco44q4f8f44p0a6k4qn4/pudowegami.pdf
- http://ctkupavna.ru/upload/file/59466363604.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=download+brunner+and+suddarth%27s+textbook+of+medical-surgical+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_off0000e142.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE142 | 16792 bytes |
font_01_sfnt_off0000f959.bin50dbcab3000dd77fcdc91d20844cf64622f339c460731b03d85c38b9089cfc14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF959 | 11656 bytes |
font_02_sfnt_off0001149f.bin0e1f3d1bc4de05424ca38d5eb41a8801e1a1f5715493c87855f321f17de2a632 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1149F | 18156 bytes |
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