Malicious PDF — malware analysis report

Static analysis result for SHA-256 3383680732cadb05…

MALICIOUS

PDF

206.4 KB Created: 2021-06-23 13:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6f76265eb13cdfef96dca32ca1678669 SHA-1: bdfe47f4953e9a7648d2bcb78ceeb9aa1d768930 SHA-256: 3383680732cadb05020cc7962b359ebfdffc4ba78b086062ab6928392070c009
126 Risk Score

Malware Insights

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

This PDF document contains multiple links to external websites, some of which are hosted on compromised CMS platforms. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains references to 'minecraft pe 1v1 servers' which is likely a lure to attract victims to click on the embedded malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

Heuristics 5

  • 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.
  • 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://bagiez.com/userfiles/file/zamoxinewejewijabe.pdf In PDF document text
    • http://asja-doll.ru/userfiles/file/61042366563.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/kagajajudu.pdfIn PDF document text
    • http://www.cbs-emballages.com/upload/file/mibezebelovonel.pdfIn PDF document text
    • http://chiengthai.com/file_media/file_image/file/vipal.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/umpabi8m8p3aieoue7dhtefgap/vumawiwof.pdfIn PDF document text
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16082c4b096887---61407349436.pdfIn PDF document text
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6aeccb0317---zajafamawisifevajafuf.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160909bfc3c9d1---movujowepok.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160971fa877834---75204980433.pdfIn PDF document text
    • http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/202168032187220.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16093b2820b36e---fipefo.pdfIn PDF document text
    • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/r00ps6bmoa2iqjsth77kvg03n6/85812342748.pdfIn PDF document text
    • http://yasairamenbar.com/uploads/files/wugusegigep.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5d0932419b---75376183599.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=minecraft+pe+1v1+serversPDF 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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002eef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEF2 5096 bytes
SHA-256: d2a8ada686eedc98439fefbaebd10d6c7f3c9a502307139b51c0ddfd3d2b41ca
font_01_sfnt_off00030072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30072 13756 bytes
SHA-256: 59463e34cae331fa43cb5c41a92c57b1a0ac03e4a1e7ac2602f39c3f616a23a1

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