Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8edc1ce47cadce…

MALICIOUS

PDF

84.7 KB Created: 2021-07-13 19:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: cf7fa92740b89778f52a2ec029da2ceb SHA-1: 2d79f15b36a31f28ff356d9b4f0de66518391829 SHA-256: 0e8edc1ce47cadce4206bc60648124fa4f31e190b585d229a178513528b463b1
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URLs, many hosted on compromised CMS platforms, suggesting it functions as a link farm to distribute further malicious content or phish users. The presence of embedded JavaScript, though not fully analyzed due to obfuscation, likely contributes to the redirection or exploitation process.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • 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://chcial.ru/uplcv?utm_term=ios+11+theme+download+for+android PDF link annotation
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160960a488a57f---gavabuxezivunu.pdfIn PDF document text
    • https://anup.bo/images/files/28781563722.pdfIn PDF document text
    • http://ekonopuntos.com/campannas/file/tajakej.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/922f228ab9cca457e679a34215b61cf8/waxiwoxamibifiromipeza.pdfIn PDF document text
    • https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/859f97ee4b84da159b7454a1cea19b6b/29928182673.pdfIn PDF document text
    • http://tiszaikaland.hu/upload/file/vesivivibuxejoravisoli.pdfIn PDF document text
    • https://repare-ton-smartphone.com/userfiles/file/41137289567.pdfIn PDF document text
    • https://art4you.sk/editor_uploads/system/files/buxelivafobikidaxu.pdfIn PDF document text
    • https://callalilyvn.com/upload/files/61025438274.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160bcf6356917f---19225075187.pdfIn PDF document text
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16087b49da6633---samepewepasake.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/ih1lb7nr5rrmr5jnlrovnkt7f4/3741152502.pdfIn PDF document text
    • http://mtecommerce.it/public/news/file/medoxugazu.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095640d94cfa---69279978184.pdfIn PDF document text
    • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/807d3f0d82e0e2d6ed08ee0d1a71c83b/japaku.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/a0d59231e474c0ca48a70c07aa275429/95852193029.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d723101bfe9---84248235943.pdfIn PDF document text
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071ef060fa0e---45913629761.pdfIn PDF document text
    • http://www.sec-ollivier-associes.fr/www/upload/file/27537169476.pdfIn PDF document text
    • http://colescastle.com/clients/875019/File/66973664554.pdfIn PDF document text
    • http://foto-video.ch/userfiles/files/84282335682.pdfIn PDF document text
    • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/1lr61e85sp84gopfg0p8jos90j/71295775374.pdfIn 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93B 16808 bytes
SHA-256: e2db972856a8badfce22330ab738860e61588624accfc55536a173ead1356ab7
font_01_sfnt_off00011504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11504 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012d1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D1B 10708 bytes
SHA-256: 9f34a03c90da1d8cf1bfd852a2eb4417ac3f8e1eb9213638672ebb1606cefb2a

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