Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cd8417c2d446025…

MALICIOUS

PDF

84.6 KB Created: 2021-07-08 06:44:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 55cd772f4ddbc449a38baf2d8372c7e2 SHA-1: faf458fff4e0dc61a2e6a839b94e929c1fa42f77 SHA-256: 0cd8417c2d446025d526b6f500f6636fc95d6bab0d6df5466cb1075ccfdd5e48
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to various external websites, some of which are compromised or host further malicious content. The PDF itself contains no readable content, suggesting its primary purpose is to facilitate the distribution of other malicious files or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • 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
  • 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://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/959eef6d420e7aae8e4d8bed7be3be8f/69749401538.pdf In PDF document text
    • https://noventa.cz/media/files/file/18605472815.pdfIn PDF document text
    • https://finances-canada.com/wp-content/plugins/super-forms/uploads/php/files/138ddc94556581f1bf76747a0432f729/fefarafuzoke.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/49a99921953bbaad0326bcd0a3de3af2/29977870251.pdfIn PDF document text
    • https://milsagliksen.org/upload/ckfinder/files/45046243375.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1607c653c1371b---vowufodutopubumi.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/d63l1atc0r8kv8l6nu5f6cu0td/tixogafejebilim.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/amgai559pho9emo5hmbpv36pq3/19847195310.pdfIn PDF document text
    • http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/20592026928.pdfIn PDF document text
    • https://bakwanudang.com/contents//files/29387113302.pdfIn PDF document text
    • https://cakenepal.com/userfiles/file/40831911358.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a61bc47ba62---88680055921.pdfIn PDF document text
    • http://sehs67.com/clients/e/e0/e078d4d0076166a7bb489ca3b3a583ab/File/govamakarepajitofuf.pdfIn PDF document text
    • http://frangarcia.eu/upload/file/95645935722.pdfIn PDF document text
    • http://mhinflatable.com/upload/file/tuzufe.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/71769795398.pdfIn PDF document text
    • https://ktmcollege.org/public_html/userfiles/file/bamodenegefakojuxuzu.pdfIn PDF document text
    • https://avonsteel.com/UserFiles/file/22137831543.pdfIn PDF document text
    • https://samarpanbharat.org/trila/userfiles/file/97194358656.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/rasatenesu.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/57973587df44d1bf668ed894ed3c8c7a/gipanoruwapapafolar.pdfIn PDF document text
    • http://austria-ex.com/images/blog//file/jilikukuzo.pdfIn PDF document text
    • https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad25c41ad2---68657203510.pdfIn PDF document text
    • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd3afeccf7d---busonapojurejeluga.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=how+to+take+tag+of+clothesPDF link annotation
    • 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_off0000e9b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B0 10488 bytes
SHA-256: 269561caa926779ff00851d5d83043ee76088afda5875ca60e69a83f51fe42dd
font_01_sfnt_off000101c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C1 16788 bytes
SHA-256: 4ffdd3e8d291f998784de60b7468b51426a003b4fa6bb174e66c2afeca375d25
font_02_sfnt_off00012d09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D09 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1