Malicious PDF — malware analysis report

Static analysis result for SHA-256 9282b25d64665a11…

MALICIOUS

PDF

87.7 KB Created: 2021-06-13 23:37:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 94e988727b4c716c219ad734fdd3a74a SHA-1: dbedf46b51c3098e06a9f4fc3e2d409235fdcefb SHA-256: 9282b25d64665a1168a0951b01b15026b2e15153ef27089e6e014cf08862a25c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to potentially compromised websites and disposable hosting. The primary purpose appears to be directing users to external resources, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://allytemp.ru/uplcv?utm_term=the+secret+life+of+bees+free+pdf PDF link annotation
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/67475c6c2c68af97ec14374119e62a6e/79796728248.pdfIn PDF document text
    • http://funperm.ru/content/file/ledaxejufojiniruvaz.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6f4018e02---rufarojesokegejojuvatogox.pdfIn PDF document text
    • http://chataphan.com/file_media/file_image/file/majutebox.pdfIn PDF document text
    • http://aeronautike.com/userfiles/file/zalupigubusanej.pdfIn PDF document text
    • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/3e5f7e9c01bfb0f8b2bd6a29db759073/15404981849.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/a753d0b780e9d19a5d15875428f49e25/66338859624.pdfIn PDF document text
    • https://cristalensi.com/public/File/fafunulike.pdfIn PDF document text
    • https://tidurmalam.com/contents//files/wutixukefexoxowebamorake.pdfIn PDF document text
    • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/16098b85a11ebd---36199708250.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/g8hjmqqm6mq12fna2da86ke52j/lafebekuvew.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2207b51a15---fewetefe.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606f52b547300---nabekepupi.pdfIn PDF document text
    • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/pexedigekiwanijisaka.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A3E 5120 bytes
SHA-256: 045797bad9865fcca231e7c6b8bcf0bd096e5515dfb393baee84bd01ac5561c3
font_01_sfnt_off00012b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B9C 11416 bytes
SHA-256: 4258fa3576d9ecd82de3c31346cad3fb840a639264f177b542c6f7540f130372

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