MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links pointing to compromised WordPress upload storage, suggesting it functions as a link farm or a lure to external malicious content. The PDF's structure and embedded links are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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://wastran.ru/uplcv?utm_term=for+the+tome+being
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d012caa63---30514607040.pdf
- http://edanieltour.com/FileData/ckfinder/files/20210616_3DDB760C857425D4.pdf
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160d2aa2ebfeb4---talalopuvivanepuzejaxi.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608520eacddf6---83381350022.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/df359e7edb3654981de565445fcea7a2/89559923001.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ed7752034d1---mitedexok.pdf
- http://aclamerica.com/customers/CMS-IMAGES/file/zowigavuxutafevukew.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160b4c937dff33---92765688200.pdf
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/a4d5b4066ffe01f3e5852a0e74aa46ad/69336744520.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160853b5b384db---mixilogatixumesosi.pdf
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/cc70883b0e38f0923976e5ca6225cf8d/65822497136.pdf
- http://koslita.eu/ckfinder/userfiles/files/vigofazitekolinekomapifow.pdf
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160896d9a5c7af---retezurodowusopipit.pdf
- http://teranor.com/ckfinder/userfiles/files/danena.pdf
- http://caratow.eu/userfiles/file/doberizunodugikijopas.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/35a749b6bbd19dcddb0f5c90f2e9f57c/lolupewub.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c396bc7e37a---18815505131.pdf
- http://tragiaocolamsapa.com/userfiles/image/file/femina.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/0a0de839c8a2dca9f31b34870e2e9f6e/39100689499.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160836299b20eb---41523674090.pdf
- http://coinproject.com/userfiles/image/file/nasezufapepeponu.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off000109c8.bin5265035c980a66411660ed09e6be4bdcf44a508ae82c4237ee0f8de7dcdfacdb |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x109C8 | 23716 bytes |
font_00_sfnt_off0000f1b7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B7 | 16792 bytes |
font_02_sfnt_off000132ab.bind8bc3cf0e1ccf14128d90d386af7409d540ecb3033a590b449a058d398c8811c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132AB | 19240 bytes |
font_03_sfnt_off000163cc.bin6613e0d790402f4b4d8dbd2f9638e000bd7c51e42fa7772e3d22a90fdfe57049 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x163CC | 10296 bytes |
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