MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple links to external websites, some of which are hosted on compromised CMS uploads, indicating a link farm or phishing lure. The presence of the 'tabs simulator apk' UTM parameter suggests a potential attempt to trick users into downloading malicious applications. ClamAV detection and ML classification confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://smidgel.ru/uplcv?utm_term=tabs+simulator+apk PDF link annotation
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/56ho2pjejhlfd2u1hk7iblff75/70402543062.pdfIn PDF document text
- http://cukierniabrzezinski.pl/www/artizam/fck/file/21335664175.pdfIn PDF document text
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/351dhklni00cfjljjrmj8144tf/zudilujokomepirusinenij.pdfIn PDF document text
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/f0660ab74f18ca1d08ca8dee70fd78b7/pevonokilugeninulifos.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160989a6277fcf---rezavulanif.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/donusukevajujewo.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210430222929387351810.pdfIn PDF document text
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607daaae8333f---33832525562.pdfIn PDF document text
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/775184fd52e1ff8b67e57685165128b0/liburefofebirikigukowe.pdfIn PDF document text
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/35ea9063a609d841fd9ec691441012e1/bomofepivo.pdfIn PDF document text
- https://108pizza.pl/uploads/userfiles/files/zuxuvaridusikedovuw.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160925777c2fb8---85366203905.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afb896d3e0d---15973924797.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160719a0cd3011---29094359708.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe4c472deb---18058333301.pdfIn PDF document text
- http://seventyfirstclassof69.com/clients/60772/File/xudepumevizasikexexeki.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eb23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB23 | 5120 bytes |
SHA-256: 88168a04cbe50a663b75dbaef2388be90d16a6bdd032cd1c3693774b7b5a9389 |
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font_01_sfnt_off0000fc62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC62 | 3156 bytes |
SHA-256: 1a9dbe6e9e000d4038b4347ec9e2959a1e5458bc5a1190c6e54dc583f1ddfba0 |
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font_02_sfnt_off000108ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108FF | 12984 bytes |
SHA-256: cf5ce2f2dfe8ea1a6653376b3b32c56f7328abe0d6dfe368c793c8d1cb2d980e |
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