MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable hosting domains. These links likely serve as a link farm to redirect users to malicious sites for phishing or further exploitation.
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 http://lncxjzxxw.com/upload_fck/file/2021-5-18/20210518005533569542.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd5b53af0e---sozugab.pdf
- https://binarbaidfabrication.com/public_html/userfiles/file/liwexijeke.pdf
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/b0e1dqppgpm1a5q2vpuke29kdq/92610780801.pdf
- https://acronimocostanzo.com/userfiles/file/fizopuzevuvisefo.pdf
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086c6adcf64b---5222005889.pdf
- https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/0134a6ed66d11ed4268c191347c824dc/wulok.pdf
- http://t-eamplus.de/web/editor/files/wovomazejanawelazepele.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e67b6d161---62859689725.pdf
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/c6b4f459b8dcb0f4d3895b12c8900cd9/92365652127.pdf
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/0353c00535e878d912f389f3bbcb905f/ragiruz.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/e0a8229f5d32848988c548c3ff0eddd6/rabasutigaxerupiwex.pdf
- https://www.visitrwanda.com/wp-content/plugins/super-forms/uploads/php/files/48c00a22ccf9209068c4ee916885439a/21816676356.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075b3c19573a---99642514680.pdf
- http://dlzj.net/upload/files/20210601165529380586.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16095e6069817a---67954684435.pdf
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/b7c2eed78b6021ad879c0f0fa0bf8de4/44904544252.pdf
- http://whatdwellswithin.com/file/16283866583.pdf
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/r6dpnduk1v3affsgqeu4jq5193/segosajotiwitex.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/82a1019aa51000a40436b7099bb77328/vedibikopukezufi.pdf
- http://austria-ex.com/images/blog//file/fepaxat.pdf
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16098eae7ba85b---sukowujaruvuwi.pdf
- http://1982thsreunion.com/clients/a/a8/a85c6617a93da1462bf6c3e7dda9c043/File/91614323621.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/9b7b333733ce11620a27ed1b2728789f/fametekesosuxavejuwog.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=55.8+kg+in+pounds
- 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_off0000f3f3.bine9f86207849e8403c2a074d6202cedbd470c7304887e09c40c18a2307cb40118 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3F3 | 10532 bytes |
font_01_sfnt_off00010bcb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BCB | 16792 bytes |
font_02_sfnt_off000123dd.bin1353d55876b6e646014f11184a960a4a62fa8b1cb42a7833335bdbca7bed4784 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123DD | 17148 bytes |
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