MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The 'SE_CALLBACK_LURE' heuristic indicates a potential phishing or tech-support scam pretext, further supported by the presence of embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://pistant.ru/uplcv?utm_term=grand+mal+epilepsy+meaning
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/ev7kgikve18339tg3qurogou45/xiduvizepudetipevipam.pdf
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/551f3b0bba0ecfa3c9fc08d8e82406c8/27265129842.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16083519bb4e89---53543750044.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3e6ac1cb6---1399785122.pdf
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/6b38955a1b32c0da29fc812450c19e9d/15186683149.pdf
- https://suprizpin.com/calisma2/files/uploads/39798718513.pdf
- https://fultoys.com/userfiles/21714718619.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607832b382512---xojazokinobejade.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eef8f91e00---74747403345.pdf
- http://bellina.pl/userfiles/file/74920498520.pdf
- https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/b5f6ef7a4caa8c6549648e43d7f8e636/fuxerajo.pdf
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/dd6f1c49e8d30101d676c007d0214ec7/ludipelimi.pdf
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/b04e0d9d6846bc2df40c5583e030a251/dabiguxatopaboluwef.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e719163426---pozatagigugivilabujuwenuj.pdf
- http://vom-ragnaroek.de/uploads/file/53586329309.pdf
- http://charivne.info/images/file/neremukazevuponumijaf.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5a62a33dd---fozepafazofikepa.pdf
- http://www.urbanwaterways.info/files/vepelibeviwaxoruwikagogim.pdf
- https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/bf6f7c4917aab6d9769696428a10de0a/53538077437.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/oc0dubmkg5enjs11tt8nl5gat1/45365952412.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/052eea85d4e1309fe7b6f9f8ff730ff2/womedifosufig.pdf
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078efe758819---neguwodusukevemez.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_off0000fc38.bin3ae7e303c1fbb7a678d14769f9912c7ca2ec6b8ca0b761519e50a8a3e9e6bce1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC38 | 10668 bytes |
font_01_sfnt_off00011462.bin4175877489a27b2b4756d15ff8c307c2c213b3a257fbe67444757c28e0b18cc6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11462 | 17536 bytes |
font_02_sfnt_off00014295.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14295 | 16792 bytes |
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