MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised CMS uploads and disposable hosting, indicating a link farm designed to lure users to potentially malicious sites. The ClamAV detection and ML classifier strongly suggest a phishing or malware distribution intent. No scripts were extracted, and the document body was unreadable, but the heuristic findings are sufficient to assess the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a577c60a1---katiligudupatigukegisum.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607256b1c2a58---13289266736.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2fc5404fc0---tetomorotokavamuje.pdf
- http://toyotarent.tw/FileData/ckfinder/files/20210613_784625ED5B1D4582.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b7b673c0bd2---pewadutoruwape.pdf
- http://bycongroup.com/UserFiles/file/87613317926.pdf
- http://wawa757.com/uploads/files/15910476222.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160be5d8b7e0a6---zuxagi.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/gmkboot773soik9mars2qo8dup/lawonijat.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc3b898099---76869136583.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/ogmkom2p1fktlts9273ldr4t9d/tejexudajexef.pdf
- http://kenshopvn.com/uploads/files/88010116839.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/80057db770f08f6b3159dd85ef7a9752/59848531242.pdf
- https://biocoils.com/img/file/makopadirenofomutivut.pdf
- http://t-p-fortune.com/userfiles/file/13680554935.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a7b77e88f---20070027405.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b901631ca7c---nawaredow.pdf
- http://nesthomes.in/userfiles/file/53326935420.pdf
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/c47fef3843d2a965f4c4be2d016a3f17/9795288906.pdf
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7e499725a---48154115211.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/mq5gmvkk94q1kmp82tj7jk46e3/votil.pdf
- https://zapcdn.space/web/img/podborky/files/35465679608.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e71d091606---tewafap.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=python+crash+course+2nd+edition+pdf+download+free
- 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_off0000ed55.bin2af7d805d5992a962eda07a73a6683ef764e26da36ff94875aba24dbc987d38f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED55 | 17100 bytes |
font_01_sfnt_off000119ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119ED | 16792 bytes |
font_02_sfnt_off00013204.bineb6cca3cee49b7bf18bb6d466802f95daaec51b85856d17421954ce0c0583118 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13204 | 11136 bytes |
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