Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e76e4d4363052a…

MALICIOUS

PDF

511.0 KB Created: 2021-07-06 00:17:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: db14a50884242cd2bad41e87c748b1f8 SHA-1: 3ae6a65ca36bd05e46d213e5bca47e5570e45785 SHA-256: d2e76e4d4363052a7bbbf827ca1d44bfa680e1bb2840466ee81901c0c7fc85e9
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of an advance-fee scam. It contains numerous links to external PDF files hosted on compromised WordPress sites, suggesting a phishing or credential harvesting attempt. Although no scripts were explicitly extracted, the presence of PDF links and the nature of the heuristics indicate a likely attempt to trick the user into downloading further malicious content or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8320

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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 https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b85325e3507---vajoxemanelu.pdf In PDF document text
    • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/608b07dc33725646ffb37c22456fc545/petanelejifezo.pdfIn PDF document text
    • http://xn--or3bi2da319p.com/upload/fckeditor/file/zasejudanareb.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/af23f6c72ce0436a774536d83f9e6fe2/gasawur.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0d4271ec21---11159736547.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/f049e8f5f2afcd40fa4fa669a092fd5a/47782410771.pdfIn PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef72287946---9381909537.pdfIn PDF document text
    • https://speakingparrot.com/upload/ckfinder/files/82206079905.pdfIn PDF document text
    • http://bjeclinic.com/ckfinder/userfiles/files/soriselutemu.pdfIn PDF document text
    • https://novahealthclinic.ca/userfiles/file/nofurawolej.pdfIn PDF document text
    • http://creatinglifeoptions.com/userfiles/files/wukaxuditeridatur.pdfIn PDF document text
    • http://goldenpeak.it/userfiles/files/vadubakawizam.pdfIn PDF document text
    • http://www.puhito.hu/uploads/24840200700.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccac105be9---99318656449.pdfIn PDF document text
    • https://pet-fashion.ro/mm/file/gupiv.pdfIn PDF document text
    • https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/kulukedozeni.pdfIn PDF document text
    • https://farmstead.tw/farmstead/upload/files/vixebasogeninomafurifod.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/5fc29f3585a8c49ae84b4d7632f1a564/dumazo.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070980f82f44---41155888911.pdfIn PDF document text
    • http://studioingegneramato.com/userfiles/files/retudeduwe.pdfIn PDF document text
    • http://rc-modeller.se/images/file///nemefegifolu.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/6f1433f518cd7193e6a69ffb4bf39d3e/wigifa.pdfIn PDF document text
    • http://toastwarenhuis.nl/app/webroot/files/userfiles/files/94820305638.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160911c6af1b78---gubedesonaravezibodawiwo.pdfIn PDF document text
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/3ead4622a6ad469836701a1d8ad39d24/53629675809.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=photosynthesis+test+questions+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_off0007866f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7866F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00079e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E81 20412 bytes
SHA-256: 90f56c78204f3bf102520b33e6943b12ad31d23ffdba0292df4ce7d65cb3d610
font_02_sfnt_off0007d3d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3D9 10648 bytes
SHA-256: 95e7991a24144eadc7290103f4cdc5b5941d02b13be7989d27048ee2c516d253

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