Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e02268c081abe5…

MALICIOUS

PDF

62.3 KB Created: 2021-06-25 06:04:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 08ea754b121935604019ed39d07e983f SHA-1: 901082868d866de26a43b1d25f57c7d2e942538a SHA-256: 26e02268c081abe574106c41686414525efcafe6771dbe14c2572dbf8799b8a5
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9448

Heuristics 5

  • 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
  • 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://e-sportis.com/images/upload/takogutavade.pdf In PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/f5ff4efd582bae2be8ccdbc13612527f/bobasesiwebojekukeperoku.pdfIn PDF document text
    • https://thehideawayresortpattaya.com/userfiles/files/45698753561.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/moekki64saoupajasc0bh4u9b0/82143073128.pdfIn PDF document text
    • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/153b81f45fdb45e647e8fea72b70af73/zepixiwatevoronadizet.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/237d6a10ebf012bde95a69aefe37b283/51420383902.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/bavivefupobimodinan.pdfIn PDF document text
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/a530971555d17f975870aa431ea272c0/fotugirep.pdfIn PDF document text
    • https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/cae0feda32f52b99992ea6f8ec0cfd97/runazotugomaku.pdfIn PDF document text
    • http://szyldkj.com/luodan/images/userfiles/file/fufizafixepogin.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0a8f0909d---rovufesiliwif.pdfIn PDF document text
    • https://ketdoanbus.com/webroot/img/files/59969258877.pdfIn PDF document text
    • https://sinhadventure.com/uploads/file/wotawotofisumo.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/7daed323aab1f8c42871acd50d70d1bd/nakowiketuzanivo.pdfIn PDF document text
    • http://tbm-mova.by/images_from_html_editor/file/riduwu.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/Om9ozkHLxGw/uplcv?utm_term=elecder+d11+user+manualPDF link annotation
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD887 2960 bytes
SHA-256: 3a99bfcc8a6322cb1f5d9dd0c76c95525b0630114fc12c53a342d41e6b6e0e01
font_01_sfnt_off0000e2f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F7 4740 bytes
SHA-256: 0005d56c0eb6caa806360bd11387e5cab2f51a8f63c6deb4309fea8d952ec973

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