MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF sample was flagged by multiple heuristics as malicious, including a high ML score and ClamAV detection. It functions as a link farm, directing users to numerous external URLs, many of which are hosted on compromised or disposable domains. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to obscure the true destination by using a large number of distinct hosts and UTM parameters. While no scripts were explicitly extracted, the nature of the link farm suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://nothingbutsafetyglasses.com/userfiles/file/gipuvoxotajunofiz.pdf
- https://zegabilisim.com/calisma2/files/uploads/90486000707.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609ce8d8b7eee---57878794003.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/5cf59ffca3e69191381c45ac6c2c7d69/4253001521.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160878747eb343---nimizemusebokezonaxarufu.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/eb6612add0f384019bfde03c387dfa78/82454752954.pdf
- http://influences-vegetales.eu/assets/Image//files/butazowasedilegezap.pdf
- https://elnativocoffee.com/silver/upload/files/nufepidamerelejesewof.pdf
- http://allamericannursing.com/userfiles/file/57215782193.pdf
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/129f7f841a57ced77243b8cff07ada9c/56202973051.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160acef8644225---fuzurubidugoxuxupe.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607482a571b95---nagurogopajifivubewix.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/049869e5aa5bb4f9ab251b7a90676ff8/42217630542.pdf
- http://tachikawa-derma.biz/ckfinder/userfiles/files/nebug.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160826559c748b---92735928686.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/7m6fbdt7tauou0cbo4gfrjvje0/13551206028.pdf
- https://licorne-hotel-restaurant.com/userfiles/file/3554772586.pdf
- http://amuseonline.com/absite/userfiles/file/28091173911.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab65218c803---tavoxutilojitot.pdf
- http://www.firstpages.eu/app/webroot/files/userfiles/files/81499610276.pdf
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/0c2f331d42362de13a950e7123b6d19f/govajutadokixepez.pdf
- https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/1606c964021ca1---zazixuba.pdf
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f9e63d131---81352596117.pdf
- http://barudan.hk/UploadFile/file/20210623044353967.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=1964+filibuster+civil+rights+act
- 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_off0000f597.bincc2d60548bf523c687f0acdd64cd4734576ff4fd5e4f8ac14ccb96f74ab30693 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF597 | 17056 bytes |
font_01_sfnt_off00012247.binf946b951d858479f72e2c6fd25d5f8f0d2210ed91ccca39950ac9c245755ae5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12247 | 11068 bytes |
font_02_sfnt_off00013c3b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C3B | 16792 bytes |
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