MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a pattern of using these sites to distribute malicious content or phish for information. No scripts were extracted, but the overall structure and URL distribution point towards a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 http://jatyn.cn/upfiles/202105/file/1620911746.pdf
- http://infrabud.eu/fckpliki/file/lipofowobegabakeloduxago.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/rader5g4mstekqlu81bonchnuc/11930974662.pdf
- https://pharma-tools.eu/galeria/file/dumexa.pdf
- https://nevisnews.com/userfiles/dajaxaselowe.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c3fb59c3dfbe6138d0a00b6d53c1e9a7/17460431360.pdf
- http://nowyhotelik.pl/userfiles/file/91582376239.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160783dbf41a63---33907427447.pdf
- https://sp-pir.ru/wp-content/plugins/super-forms/uploads/php/files/0f6ce49f53784398339541162676d114/77449688911.pdf
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/ron821lfogrcc3463k0tqe22q3/wavosidibelujogomuvig.pdf
- https://eyetracking.pl/userfiles/file/57983582282.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/a168e18552191e68fc9e8aa29167fd44/zejofutej.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d4017961646---64760153263.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1d6c70df4---nerunedexogop.pdf
- http://aiskreunion.com/clients/b/b4/b417c2091670ce0b0d78f4b231aea02c/File/fazipalikeramute.pdf
- https://gadd-asso.org/userfiles/file/bamokimir.pdf
- http://www.motorradfreunde-toggenburg.ch/up/files/77396814244.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16075ab9c7779c---xogoweruwiti.pdf
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/brgb0fjv3c9b3iatmceh3eql7f/legamiberefabedanaxov.pdf
- http://altaprecision.com/userfiles/file/jomagorisunoj.pdf
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/6489a79e13233cf32259624ab741d451/35068727582.pdf
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160982ff6cc2c4---bidivaboxusafe.pdf
- http://huiking.cn/uploads/file/031418202004.pdf
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/fp5dpogk5c2jn6k6cnl2pv1qm0/kizisugifabazedonetasi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=weschler+nonverbal+scale+of+ability
- 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_off0000d1f7.bine7adb0394453937044038547f895408869f77997b4d49cb71f31966db8dc651f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1F7 | 17416 bytes |
font_01_sfnt_off0000fede.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEDE | 16792 bytes |
font_02_sfnt_off000116f5.bin9b9abecd547bfb10130eaacc0d387a257f17cf052371ffebc64aaac6e1507998 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116F5 | 10748 bytes |
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