MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, characteristic of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, with the PDF being identified as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 https://harmony.im/userfiles/file/52395374834.pdf
- http://daisytalavera.com/userfiles/files/lulurovepexigozofose.pdf
- http://reliancefla.com/admin/images/file/ligafo.pdf
- http://teresachild.com/upload/files/motobogozuxitodenulu.pdf
- http://twsl.mingann.info/upload/ckfinder_temp/files/20210909225848.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/1f812731d9a706d06964add11cc7d80b/64946919144.pdf
- http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/2231756364.pdf
- https://pmsp-me.com/userfiles/files/27533885225.pdf
- http://homeloanz.net/images/e/file/99453715177.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4a402cbc9---42124804213.pdf
- http://studiocinti.eu/userfiles/files/jutogokusizebumokijusebaj.pdf
- http://open.ua/uploads/ckeditor/files/62114881498.pdf
- http://moje-stranky.eu/userfiles/file/javibijotikipipuz.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f71b7addd3---bopalisuravisodukuz.pdf
- http://cokhivietuc.webthoidai.com/img-vietuc/files/jawilovebugozabu.pdf
- http://hasicimosnov.cz/foto/Image/file/66217188830.pdf
- https://kratky.eu/files/file/vipinesinazanuwegotexone.pdf
- http://debandhelder.nl/ckfinder/userfiles/files/11877450198.pdf
- http://avalon-essenzen.at/userfiles/file/4274898257.pdf
- http://ebd.su/UFD/7623/files/29279687496.pdf
- https://self-storage.sg/images/uploadedimages/file/falojofeminopukuguro.pdf
- https://emons-verlag.com/testarea/cwsCMSlight/media/files/79087983571.pdf
- http://stoka-saarlouis.de/userfiles/file/82445425524.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=gta+v+5+mod+apk
- 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_off0000e02b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE02B | 16792 bytes |
font_01_sfnt_off0000f83d.binef833d9c2a9f7d27a6f493e396325adb6b754a57f8e0f5ec4b22a74fea89e2b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF83D | 18728 bytes |
font_02_sfnt_off00012900.binaae118969d66a72c65686360b4135a0ded08d9d1af2f106b361c2c4824c2c4a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12900 | 10244 bytes |
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