MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various websites, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm, likely intended to lure users to phishing sites or download further malware. The ClamAV detection and ML classifier strongly suggest malicious intent, consistent with a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 https://garglob.ru/uplcv?utm_term=install+ios+9+on+android
- http://narcisse.sk/editor_uploads/files/setoperalajenuvafede.pdf
- http://ccforum.kr/uploads/file/1631073214.pdf
- http://purofirstli.com/userfiles/files/50871935675.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614122e7081cc---63698611285.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613414d577209---29913089895.pdf
- http://tienhasteel.com/app/webroot/upload/files/ledigixiv.pdf
- https://delaneyllc.com/ckfinder/userfiles/files/filivoderikagalatez.pdf
- https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/gepafok.pdf
- http://bbfrontedelmare.com/userfiles/files/75273450265.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/51d6d582225546a2fe29a4bc9873728b/kujite.pdf
- http://velkoobchod-man.eu/ckfinder/userfiles/files/lorikerilinizisuwuxip.pdf
- http://www.puhito.hu/uploads/46533020307.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16137ae119b900---3502034863.pdf
- https://loppisidjupdalen.se/images/uploaded/file/fesegidevovutimibakivos.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/e1cf056198498a8064e1151321532cb2/54030226290.pdf
- http://zamel2.pl/userfiles/file/19937336264.pdf
- https://tipresentoio.it/images/file/15003974643.pdf
- http://muntepa.com/userfiles/files/71016563862.pdf
- http://karimeh.com/public/userfiles/file/gomumu.pdf
- https://fgcrubochi.com.ng/ckfinder/userfiles/files/14616729546.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161410edf7f48b---13413594621.pdf
- http://alt-1c.ru/userfiles/file/jujukanujas.pdf
- https://stiff.pl/ckfinder/userfiles/files/retidinajenigegujiligo.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_off0000de06.bineac2aaf636ba1f4db562867ab4b60a06c20f8c54423b7d57339a0bb16b61048f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE06 | 10228 bytes |
font_01_sfnt_off0000f517.bin72910e4602f50a7d620a5d994bc14564cd581d53e0d0b6f1d7723519a3a0677e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF517 | 18196 bytes |
font_02_sfnt_off00012380.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12380 | 16792 bytes |
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