MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to compromised CMS uploads and disposable hosting sites. The embedded URLs and the nature of the heuristics strongly suggest a phishing or malicious redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://sunrui-ti.com/d/files/37262366225.pdf In PDF document text
- http://mcutech.net/files/70080643497.pdfIn PDF document text
- http://yishiweb.com/upfiles/files/20210901_143826.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613800245441a---pewit.pdfIn PDF document text
- http://zoekidsworld.com/userfiles/file/82339188905.pdfIn PDF document text
- http://lobanowscy.pl/userfiles/file/loropofakuwajojadenesug.pdfIn PDF document text
- https://digireg.ru/upload/10725394579.pdfIn PDF document text
- http://studiorumeo.it/userfiles/files/50068403768.pdfIn PDF document text
- https://jmcoverseaspvtltd.com/uploads/files/xotudefazirovisigap.pdfIn PDF document text
- http://chikatere.com/Upload/files/xemine.pdfIn PDF document text
- https://melz-feu.ru/upload/94437839236.pdfIn PDF document text
- https://inprovitcentroamerica.com/ckfinder/userfiles/files/rulovovizilazenat.pdfIn PDF document text
- http://cp-tournament.org/ckfinder/userfiles/files/70064192248.pdfIn PDF document text
- https://boyanbolyarski.com/userfiles/file/momogegupediru.pdfIn PDF document text
- http://lahma.pl/_u/userfiles/file/tojabujoxomokixumizopa.pdfIn PDF document text
- https://kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/61959667721.pdfIn PDF document text
- http://bn-biz.com/userData/board/file/11484773699.pdfIn PDF document text
- http://enjoyisagenix.com/ckfinder/userfiles/files/34907512702.pdfIn PDF document text
- https://marikakozmetika.hu/editor_up/43513703118.pdfIn PDF document text
- https://a-metal.e-giant.net/archive/file/files/17236259977.pdfIn PDF document text
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/3888bc39a4fcacd563a735e8ac024208/tasejuwete.pdfIn PDF document text
- http://elfuklid.cz/foto/Image/file/72902822418.pdfIn PDF document text
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/690695becd89f3c61a6cfe605e8ab475/54684699648.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=what+is+lte+in+android+phonesPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e473.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE473 | 10480 bytes |
SHA-256: 074a785919fefdd3a41c221d5548ce6c766160093e23d024d358eec55120298f |
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font_01_sfnt_off0000fc36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC36 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11448 | 17656 bytes |
SHA-256: cdeb87ac22bb84d2773cb8612fa3ec0139184e68392fd9b6ea4e89af8eeac955 |
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