Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a85e4eb70a077c7…

MALICIOUS

PDF

72.3 KB Created: 2021-03-01 09:50:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 952b1c32f99d40c1b66c5b3bd054ab80 SHA-1: e13f87a2399a394894f607cc59c432424439f8a3 SHA-256: 8a85e4eb70a077c76c76ce4f5d0acec8e9e995b0056970fd2c1396e1f03e6edb
104 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that mimics a search result for pirated media, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI are consistent with phishing attempts designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://fokemale.ru/wb?keyword=twilight%20saga%202%20full%20movie%20in%20hindi%20download%20filmyzilla PDF link annotation
    • http://xufededubumavif.scienceontheweb.net/how_to_clean_bionaire_heater.pdfIn PDF document text
    • http://detonic-italia.website/certificate_of_authenticity_template_uklbjct.pdfIn PDF document text
    • http://meetplafond.xyz/how_to_clean_philips_avent_3_in_1_steriliserx803w.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/garmin_64st_review.pdfIn PDF document text
    • http://midikakuvekume.mywebcommunity.org/logiwizowuwebib.pdfIn PDF document text
    • http://eurosett.net/clinical_evaluation_reporttrwh5.pdfIn PDF document text
    • http://tiktokfrance.fun/whats_the_color_of_the_year_2021zbl7w.pdfIn PDF document text
    • http://naturaitalia.space/errorless_biology_for_neet_download4l3rf.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/ghrkDok/76775292389.pdfIn PDF document text
    • http://reduslim-officialsite.site/how_to_make_a_3d_vr_videolrhrs.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/jjdleok/vekulomunuzifig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/mcgraw_hill_education_precalculus_answers.pdfIn PDF document text
    • http://gonegexunu.myartsonline.com/short_fairy_tales.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/avmatrix_pvs0615_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/bamboo_bed_sheets_amazon.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/28143898078.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/cisco_nexus_aci_ordering_guide.pdfIn PDF document text
    • 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dde9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE9 5608 bytes
SHA-256: 507cd4f9f34f5a072885bea07ea139c62f9596c8579b7d5d46c6ae66af533b3f
font_01_sfnt_off0000f104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF104 10060 bytes
SHA-256: f7f1fe954ef1cf78452094e0369f25b44cfa819e8d245f97054df2fe1f654821

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