Malicious PDF — malware analysis report

Static analysis result for SHA-256 47fd92a6e0e6294b…

MALICIOUS

PDF

82.5 KB Created: 2021-08-25 02:32:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 30effb51a8c203f3aa6f957e11da2ffa SHA-1: 39440514a8ade123d39d268d905eec56251736d7 SHA-256: 47fd92a6e0e6294bcc30ff3b92aaaa45636d6205636c312272e3142be0ba5c98
156 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many pointing to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were directly extracted, the structure and URL patterns are consistent with exploitation attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://oniceh.ru/uplcv?utm_term=d+words+with+meaning PDF link annotation
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f4dc5b6943f---86929706843.pdfIn PDF document text
    • http://cpgny.com/userfiles/files/dosebatobuden.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2460126428---zuvov.pdfIn PDF document text
    • http://huimao.com/upload/19280645193.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d061004a9a---34140354690.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/7c1e1291964b7f0e7c97ed5b8855ad27/razezel.pdfIn PDF document text
    • https://creativitagh.com/pevron/www/img/file/tetejepasuxepimulewudi.pdfIn PDF document text
    • http://tech-in.info/bramy/userfiles/file/zuzololatiwubi.pdfIn PDF document text
    • http://cheapneasytrafficschool.com/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/zolevakefexulematogugoval.pdfIn PDF document text
    • http://youandisagenix.com/ckfinder/userfiles/files/61350468672.pdfIn PDF document text
    • http://etalentlink.com/uploadfile/file///2021080819031017.pdfIn PDF document text
    • https://partnermind.cz/images/files/97761506297.pdfIn PDF document text
    • https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/736ed4f09fa079244bba3cd0b973bd69/37596746488.pdfIn PDF document text
    • https://thucphamtruongxanh.com/Upload/files/53887438014.pdfIn PDF document text
    • http://aiskreunion.com/clients/b/b4/b417c2091670ce0b0d78f4b231aea02c/File/lisezodopikebesomeferu.pdfIn PDF document text
    • http://meyanko.com/userfiles/file///labufixulililibax.pdfIn PDF document text
    • http://cjatkinson.com/userimages/65763949391.pdfIn PDF document text
    • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bd861a3c833---mumabulukadamagafu.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/62433580641.pdfIn PDF document text
    • http://sztarmedia.hu/_user/file/73546144067.pdfIn PDF document text
    • http://33podarka.ru/pictures/files/28586266840.pdfIn PDF document text
    • http://arabstina.com/ckfinder/userfiles/files/1982650866.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc7f83b15f---97097972005.pdfIn PDF document text
    • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/7ca0f45cac391a9cf473d888ca830edd/nidezasaxikuwaba.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_off0000e0a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A1 10736 bytes
SHA-256: fad428f3612e7ced70aded6e4b32cc15b29b32086d61643dea1794ac3b9387b0
font_01_sfnt_off0000f8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001110b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1110B 16756 bytes
SHA-256: c3495c0c9df88c3d065c396665acbb696960ee2b4d19593626367ab7f59b142c

Open this report in the interactive analyzer, or submit your own file for analysis.