Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e05023d83aa9415…

MALICIOUS

PDF

69.7 KB Created: 2021-03-07 17:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dfe279fac7e2d0f7f4a11409d9d9122 SHA-1: d4ccb2dfb7987ec9079e88783e5a4e1dd48327f7 SHA-256: 0e05023d83aa94156e87016cd9581cbebb7411e4924ffcca17f5743a962d144e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a phishing site, masquerading as a worksheet. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jumiwimov.ru/wix?keyword=genetic+problems+worksheet+%25232
    • https://xowunaxevome.weebly.com/uploads/1/3/4/6/134679103/5943618.pdf
    • https://static.s123-cdn-static.com/uploads/4475217/normal_5ffac1b171511.pdf
    • https://static.s123-cdn-static.com/uploads/4446019/normal_6001d1567f197.pdf
    • https://cdn-cms.f-static.net/uploads/4408476/normal_602977941ad16.pdf
    • https://cdn-cms.f-static.net/uploads/4416500/normal_6033523b9e454.pdf
    • https://webegerux.weebly.com/uploads/1/3/4/7/134759049/kekifawefor-juxaxeniferiv-wowez-zofatakafifurel.pdf
    • https://lepamume.weebly.com/uploads/1/3/4/8/134882258/b52a8c.pdf
    • https://static.s123-cdn-static.com/uploads/4377908/normal_5ff59bc556bdd.pdf
    • https://cdn-cms.f-static.net/uploads/4459062/normal_6040e4c3397b5.pdf
    • http://xurekovof.22web.org/jajamo.pdf
    • http://nalatakojuzali.iblogger.org/best_detox_plan_for_weight_loss.pdf
    • https://rilawexiretik.weebly.com/uploads/1/3/4/2/134267086/8009707.pdf
    • https://nijumaweka.weebly.com/uploads/1/3/1/3/131379182/ac8fb85b.pdf
    • http://temagezo.iblogger.org/hamlet_freezer_film.pdf
    • https://zisediri.weebly.com/uploads/1/3/1/4/131411341/3942925.pdf
    • https://bimidupixujeg.weebly.com/uploads/1/3/4/3/134319160/kekozutupijemoxo.pdf
    • https://cdn-cms.f-static.net/uploads/4485322/normal_6021cbc7cbdd0.pdf
    • https://cdn-cms.f-static.net/uploads/4453553/normal_602dd4b5b04fc.pdf
    • https://wudowesowuzoka.weebly.com/uploads/1/3/4/5/134584143/511cdbb6c8.pdf
    • https://cdn-cms.f-static.net/uploads/4381289/normal_601d916146866.pdf
    • https://venefenotufawu.weebly.com/uploads/1/3/0/7/130775800/fobugisisid_nitoribemawapo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nalakakowim.epizy.com/mafatisamotatiresulabokaw.pdf
    • http://vefagukolile.epizy.com/aarambam_movie_video_songs.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4d4.bin
3490d6d1706de9e0971a8b6046d601c838ee664c6b16def9c5013eb8b4915105		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D4 5292 bytes
font_01_sfnt_off0000e6bc.bin
284a48ed42a85e7a4cde6dd708c32161f199f6f27c7eee52bf5d3cd268558ac4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BC 10268 bytes

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