Malicious PDF — malware analysis report

Static analysis result for SHA-256 3062200484c4f04c…

MALICIOUS

PDF

69.2 KB Created: 2021-06-19 23:07:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4047c01b9744344986645b37f441f82b SHA-1: 1d0a83a78110832dd3f068ceef07372656456a62 SHA-256: 3062200484c4f04c32b04c6995a1ba5a80c3f4b17108d7a8c57a77d74c27eeed
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains numerous links, many pointing to compromised WordPress sites, suggesting it's part of a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are consistent with a downloader or redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7642

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One 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://archism.ru/uplcv?utm_term=gf+song+download+pagalworld PDF link annotation
    • http://www.parkwaytransplant.com/media_upload/upload/files/19641294760.pdfIn PDF document text
    • http://getem.plfiles/file/jisulolid.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160950c1c36f4e---jofezagokolapinavobez.pdfIn PDF document text
    • http://xn--aknmedcal-wpbe.com/uploads/file/nidatajegaxurujodez.pdfIn PDF document text
    • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8c97bbb99---balis.pdfIn PDF document text
    • http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/202163151377555.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609871531aac6---farabirozimarexamuvatosov.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/0iq7svo15ep58ojf1ihdp6r8e5/39990837845.pdfIn PDF document text
    • http://capmar.eu/userfiles/file/nivivexufum.pdfIn PDF document text
    • http://mp-hd.de/data/aktualnosci_imgs/file/37070231799.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/sabun.pdfIn PDF document text
    • https://aimhc.com/userfiles/file/23742630631.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1a2b5060c---58566376483.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1609754ebd6e25---63263689709.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/ed89b617eee077c2eacd0003f6c4b9b9/kukijevuvoti.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16089dbebce22e---ninubanuzota.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/caf9a930f9e876db8508d1962df8a94f/31089420384.pdfIn PDF document text
    • http://bethelhanberryaaa.com/clients/2/24/2465ef4bb9bb1b7382310ae17d7cafeb/File/korezilutowewazukeleg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA88 5332 bytes
SHA-256: 1d29f0579ce73d24b957ee9f288a6751f02f58f322f1d0587c45864128c7054d
font_01_sfnt_off0000ecd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD2 11324 bytes
SHA-256: 4eef7726933b27ecb0d974cf1048307ecbfe39ef47d773a5b527befbe6791881

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