Malicious PDF — malware analysis report

Static analysis result for SHA-256 5119e49ee1b5f139…

MALICIOUS

PDF

92.6 KB Created: 2021-06-29 06:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ff394bc05188680ce2ed2f1b562a96eb SHA-1: 211894449d87edc3e772c5cfcc35bd01b96a3636 SHA-256: 5119e49ee1b5f139f6374ed8b4ebcf273dc30457159b082aadbcf24dfd5eace7
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs that point to compromised WordPress upload directories and other disposable hosting. These links likely serve to redirect users to malicious sites or download further malware, aligning with a phishing or credential harvesting attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6b02a7816---8293299052.pdf In PDF document text
    • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070368d39c77---78402068345.pdfIn PDF document text
    • http://abaj.cz/UserFiles/File/buwudalujamikis.pdfIn PDF document text
    • http://arc-en-cielproduce.com/ckfinder/userfiles/files/mukisonoxibidebedawux.pdfIn PDF document text
    • http://ty-universe.com/image/files/20210606_151000.pdfIn PDF document text
    • http://illinoislivestock.org/userfiles/file/fisanejixuleligov.pdfIn PDF document text
    • https://roweryelectra.pl/app/webroot/uploads/file/16213604175413.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e8b609cbd---57345644640.pdfIn PDF document text
    • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/283e5316b974dgn0tsm2b4d9g5/lewemojun.pdfIn PDF document text
    • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/b3b73560u0peomklqd9k22oens/145944778.pdfIn PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/fm87nm2m5v8u776q0inpl0avn9/relenowa.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/90d3dfb637aa300487dbc27fa2404620/redemid.pdfIn PDF document text
    • https://retta-bg.com/userfiles/fiziw.pdfIn PDF document text
    • http://ehs1958.org/clients/73155/File/61973618579.pdfIn PDF document text
    • https://mobile-translator.eu/app/webroot/media/files/jasuneponudidivitabopi.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160b922a83ead6---65314584893.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/5d28cff7559592c43436bde81c2459a3/nodanaduzat.pdfIn PDF document text
    • https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/mujfngks5bkp1a5457voaomauv/rabopafotokusazawile.pdfIn PDF document text
    • http://zimaletto.com/uploads/file/73932989580.pdfIn PDF document text
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607373080fd0a---wejovapalileve.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ba4549401---62574351298.pdfIn PDF document text
    • https://aravlicraft.com/cmsCart//upload/file/1456115201.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=relationship+between+temperature+and+volume+of+a+gasPDF 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_off00010428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10428 11384 bytes
SHA-256: 5c283b05ec91c4dd19808295116d1a45f1c9f05c9a28fdc794ff00f0ce4488bf
font_01_sfnt_off00011e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E62 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13674 17872 bytes
SHA-256: 689686eb5a0fa8bf609438632b58521a035c3721bbcc15fdf20f667ee89e42d8

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