MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and link farms pointing to compromised websites, many of which host other PDF files. This behavior is indicative of a phishing or malware distribution campaign, likely initiated via spearphishing. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
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://ketchas.ru/uplcv?utm_term=calories+in+baked+chicken+wingettes
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/k3m2ua09ggmr7aoo0ur0uo6hms/rukutivijulonivijonixobo.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/bc7c8e81d0e88e3d52bbaacdc9bd32c1/rijesab.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0b03e4bb2---95029079196.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb41e1c8c63---20992561754.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/605e1e7111ebb2d817187a8cbbdc1404/bopomuviwoxuna.pdf
- https://marlin-aquarium.ru/ckfinder/userfiles/files/78099189815.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/48e430e5fabc657891e5e588cb5f2f13/12963782615.pdf
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/de926b3d003eb795c60ec2614dbb6ac4/11172271127.pdf
- http://duonglaohanoi.com/userfiles/file/89224534806.pdf
- http://tamilannuaire.com/var/www/vhosts/vps296430.ovh.net/tamilannuaire.com/images/file/37689264483.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa1410267bd---doropevusavinisu.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/difllb8ddoivpgso9pagl5aup1/61033812357.pdf
- https://zemiigori.com/uploads/file/84675484566.pdf
- http://bukharaatlanta.com/sites/default/files/file/54635636701.pdf
- http://ventilatoryzlin.cz/images/file/80953851907.pdf
- http://wchs65.org/clients/b/bb/bb65574a37642f7fe3135935df861e67/File/7111344838.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/57b782d235fa12a45783752b101f23be/xubek.pdf
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093ceef292a7---50326716886.pdf
- http://anvlaw.com/userfiles/file/sodatebifosavakafesotifin.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b0ddc7c506d---pezikobatekewufim.pdf
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a1c1381df---nipunutamuved.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-5-21/20210521231953596342.pdf
- http://marthomaiticherukole.com/userfiles/file/laxunafepugugipawuxeso.pdf
- http://aj-logistics.com/stock/userfiles/file/70446414418.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f17a.binbdebc2ec691f50beffe2abeb84668b64af43e2943542d8cee9a33115941d2cd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF17A | 17152 bytes |
font_01_sfnt_off00011df0.bincc424dce66937a46212b8c1cb6b0731c889464d4015d5de679ab73ae92f1374e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DF0 | 10996 bytes |
font_02_sfnt_off0001374e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1374E | 16792 bytes |
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