MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, providing no direct content clues, but the heuristic findings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://allytemp.ru/uplcv?utm_term=what+is+an+example+of+a+1st+class+lever
- http://fzcce.com/aimgs/uload/files/14605340266.pdf
- http://dothanhigh1970.com/clients/6/63/63ba8bdc6fdca46b25bb56d5732eafc9/File/limirinipadofesowep.pdf
- https://bbpartner.cz/userfiles/file/mumijadetoledem.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087abf1729de---84018290125.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16094b58402d58---60862339584.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/cb1f5dba897cc884cc32eb15f7493430/4200925961.pdf
- https://iva-vietnam.com/userfiles/file/zonedudenazujutav.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088df4212eba---taxomini.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a80de87fed3---45127517533.pdf
- https://vayamcs.com/content_files/files/nafixekenisugatezazuz.pdf
- http://itssilvertime.com/clients/2/24/24efe347a73a8ce028152bf895bc11a7/File/lojuwuwivopedujisad.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/f5f08fd3306f162bb55935b8322590ac/62228997633.pdf
- http://f-okinawa.com/img/tmp/files/xuvoka.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/fbu44emumd1p0i9q0320qpp9jg/5730430939.pdf
- https://dichvuketoansg.com/luutru/files/19885338768.pdf
- http://amidoux-peintures.com/ckfinder/userfiles/files/tasunazigalobuxom.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1609f6714c007e---tuluzevodobunawasetad.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/c6d143a829e67740c1c012435ecb3a8a/kamesokokaj.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e81ef1f1e13---13807570120.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1611985c0d0b95---zazixiwopo.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/8e591045a42464a597850305f9b37acd/valojepunozizomukupipek.pdf
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/78240757115.pdf
- https://zhavezbozi.cz/data/file/40288146598.pdf
- http://noxsun.com/jingkelun/userfiles/files/20210715174526.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_off0000db3a.binb2a53b7fd49e0e7fd37914b0f7072cbb8487e3774a304c3f6d6fcb4a35a727f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB3A | 10960 bytes |
font_01_sfnt_off0000f482.bineab632957e3850083beede0264c962707ddf7af15d487996f1f5061d66f19632 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF482 | 16744 bytes |
font_02_sfnt_off00011fe2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FE2 | 16792 bytes |
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