Malicious PDF — malware analysis report

Static analysis result for SHA-256 040af1f265f6f14c…

MALICIOUS

PDF

66.8 KB Created: 2021-02-16 22:10:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f03e6b768be36be1235ade1dd28f7445 SHA-1: c9ee25c38f37c444293f4c069e3d2f72b1f43469 SHA-256: 040af1f265f6f14c57067b4c4aada3625d7a19b06fd8977da49c71e7cf9772a9
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://seumenha.ru/wix?keyword=dr+morgan+math+2 PDF link annotation
    • https://zumuwezejulo.weebly.com/uploads/1/3/1/4/131455722/lumademivaze-retizawaxezovi-seduf.pdfIn PDF document text
    • http://fredo.run/super_simple_songs_dvd_freeok92j.pdfIn PDF document text
    • http://zoom-omsk.ru/47396020945hz5t5.pdfIn PDF document text
    • https://vafunaparixidi.weebly.com/uploads/1/3/4/6/134627598/95c22d7038.pdfIn PDF document text
    • https://nivujetomut.weebly.com/uploads/1/3/4/7/134753784/vuvimu.pdfIn PDF document text
    • http://aycotoro5.xyz/can_you_put_chia_seeds_in_smoothiesrmp5j.pdfIn PDF document text
    • http://uanews.website/7809874863247muk.pdfIn PDF document text
    • https://bexusisase.weebly.com/uploads/1/3/4/5/134596812/dodaso.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/kakekojezutok/azur_lane_formidable_dio.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/33282510513.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/canon_in_d_rock_violin_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/acknowledgment_of_service_form_georgia.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/72798731787.pdfIn PDF document text
    • http://jovesupegomiz.epizy.com/51396493288.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/80486990988.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_off0000c8e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E6 5020 bytes
SHA-256: 178de231713b25b0462acef8f23b2bf61967c0ff8766a0716c75dadcd1a9b8e7
font_01_sfnt_off0000d9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D3 10964 bytes
SHA-256: beb65e82ca00dad2c1cf9fad80a96a9cf2e1fb5a6f530077db4d8d08793fb562