Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0d2e9f7610c9622…

MALICIOUS

PDF

81.3 KB Created: 2021-09-01 15:51:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: e1a8b3b8b199c058820e898099d5ee3a SHA-1: 1b3c1b4b1d6f6f3db9e87535a749bbd2985afc2c SHA-256: b0d2e9f7610c9622bbea5e3366453791e239984d24fac9b483aa642b4b8e7768
156 Risk Score

Malware Insights

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

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting it's designed to redirect users to malicious sites. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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 http://seamacros.com/upload/file/vugomefusuwugar.pdf In PDF document text
    • https://genegurumiraclehealer.com/userfiles/file/74035667247.pdfIn PDF document text
    • http://naturestuff.nl/siteimages/file/dufejomukokas.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//18281519551.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/16071eb3ff398d---zuxefigopufokirafo.pdfIn PDF document text
    • http://allseasonsbanquet.com/clients/868236/File/dagawosuje.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088eb12cb4d7---murijolexadowonagoginemim.pdfIn PDF document text
    • http://prttour.ca/FileData/ckfinder/files/20210617_55D42CFD851A201F.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608d23bbbedf6---45732222861.pdfIn PDF document text
    • http://ned.ru/uploads/files/pefadofidoxapusibawobonig.pdfIn PDF document text
    • http://tcihk.com/userfiles/roraro.pdfIn PDF document text
    • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/fcab6cdbee188fd33b1b26138e59c365/kugetemewexobenuz.pdfIn PDF document text
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b45c370b72f---55307292457.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/rajako.pdfIn PDF document text
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/7d574a3ad0d72aa0f53f85f5025ea610/77667138595.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/a3129b4c02bcab8f345c73f55dac028c/finux.pdfIn PDF document text
    • http://fiumevivo.it/userfiles/files/30113214889.pdfIn PDF document text
    • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c43896abbab---56577059139.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/najunumidizevep.pdfIn PDF document text
    • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/72g16lai1uglpiisd9uu48lih6/kewotiv.pdfIn PDF document text
    • http://kangs78.com/clients/66216/File/zejojew.pdfIn PDF document text
    • https://chinese-wall.tw/upload/files/rurufujofupetuxapabijex.pdfIn PDF document text
    • https://codecs.ro/images/file/1091898892.pdfIn PDF document text
    • http://papaicountrylodge-longstay.com/user_img/files/29916378683.pdfIn PDF document text
    • http://gitishahjahanpur.org/ckfinder/userfiles/files/rikezubetiduboziniloser.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+convert+a+spreadsheet+to+pdfPDF 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_off0000dddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDB 15520 bytes
SHA-256: dcb1ed2c3b3006a4a46619440dcc03a0e036ced77f81c88aba66f1bd52ec805b
font_01_sfnt_off000105bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105BC 10720 bytes
SHA-256: 20f663766c9a088b40b1655a07f8324a931b23ec30b52ef65180c57199546657
font_02_sfnt_off00011e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E55 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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