MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution attempt. The presence of external URIs and a link farm indicates an attempt to redirect the user to malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://oniceh.ru/uplcv?utm_term=risk+of+hospital+acquired+infection
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/cbffaacb256c3a1df8188e286904ec28/kigudewesakigu.pdf
- http://15449010.com/FileData/ckfinder/files/20210620_4371557AF8CBCAB9.pdf
- https://hmanagement.net/userfiles/file/tonafedubimebajevesa.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c93e39cf00d---26181268430.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16076a8b82921b---89563013896.pdf
- http://gpmpoolandspa.com/ckfinder/userfiles/files/tasivamovomarowutozajixiw.pdf
- https://rinducm1.com/contents//files/19167686992.pdf
- http://bixenony.com/userfiles/files/65810555828.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f6655197e---logedinisobipirodebusud.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f5daa7b5e---disijowixubudazaw.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160796d4b272d4---55313548049.pdf
- http://mankatomnclassof71.com/clients/e/e0/e0e8961458839910853a12af65841b27/File/nadawesebiwe.pdf
- http://cheapneasytrafficschool.com/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/tavisakef.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b62945ab4---1992636374.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b487b7c3d65---57961590633.pdf
- http://hzkontejnery.cz/ckfinder/userfiles/files/bomevuw.pdf
- https://jackyrouxmethode.com/userfiles/file/71993219609.pdf
- https://nestaerospace.com/uploads/file/29995760533.pdf
- http://homeopathyhk.com/files/94723217636.pdf
- https://wsbtitan.com/images/file/53396871953.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c0a678d7149---rojibejizaxumasuwugeru.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9a2o1k3lut04jv8kt5n0a0ke82/46932765834.pdf
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/b06064cb2d2f6a27f47ded40cba68cf4/56424969919.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_off0000e8fc.bin31ff8136391529ff7b47c7e233c774cfc43990b87e87c7bbad6e5c2d14c61cbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8FC | 17220 bytes |
font_01_sfnt_off000115de.bin87abc7ec03a5a17b0ba7e5c8482e43670887cf5bb6c4ba92c0d3e504eed0378d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115DE | 11100 bytes |
font_02_sfnt_off00012f80.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F80 | 16792 bytes |
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