MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, with several pointing to websites utilizing compromised CMS upload functionalities, indicating a phishing or malicious redirection scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://kaowei.tw/image/files/20210529_125014.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b30a51107---29576847407.pdf
- https://nutstudio.it/userfiles/file/pomegojoxuropamutalamin.pdf
- http://vivatbacchus.hu/files/file/82797045454.pdf
- https://tailormade-sales-marketing.com/userfiles/file/misiwamagozatibatabu.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091f418a4807---nisojupagetiruruxola.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160720afe93902---kodozuridet.pdf
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/abdb5dd2e1fc9882522e11228395cedb/39537992113.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609e93028314a---13508250010.pdf
- https://riondene.ch/img/uploads/file/10005917739.pdf
- http://bright-inter.com/file_media/file_image/file/18472322315.pdf
- https://tourgardan.com/basefile/tourgardancom/files/sasepesufazukomuworif.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/4e9f3268e20182dafe7d11e6bd4048d2/gonexas.pdf
- https://tonwen.org/userfiles/file/12537520093.pdf
- http://se-ty.ru/uploads/userfiles/file/86158364424.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e67f8d4cf---limoto.pdf
- http://on-video.com/movies/movie_data/file/29995020034.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/m7qkf0jgj2s4dvsel8d90bhev4/50635349710.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160beb83e10630---41016768528.pdf
- http://aylincinarli.com/fckfiles/file/53312535051.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/oomctt420981focck2clak01h0/xakeba.pdf
- https://securityguardsupply.org/php/uploads/file/97875962288.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16095726c37125---30301200505.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=paragraph+about+advantages+and+disadvantages+of+social+media
- 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_off0000ead2.bin8b2e5427134a957c7c1b2f3bc063c59f817f8864e5eae961549896b7be62c6a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAD2 | 16540 bytes |
font_01_sfnt_off00011617.bin25fbd973a5ee2026cd2c0d38ff79feec633b6021c280dcdc658c3d59e99694e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11617 | 11376 bytes |
font_02_sfnt_off0001304d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1304D | 16792 bytes |
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