Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b15ab9dedff075…

MALICIOUS

PDF

75.5 KB Created: 2022-04-07 23:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 66405ad966a38eb9126b103bcebe7e0f SHA-1: 52219c568c95071e30ff516cba3c933c6056c248 SHA-256: a8b15ab9dedff07521980c0cf7cd79f6c7d70511294a458293aeeaed3b1108ed
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://yoyep.co.za/YmrXLWy8?keyword=msi%20990fxa%20gaming%20bios%20reset PDF link annotation
    • https://muzafudopabebex.weebly.com/uploads/1/3/4/8/134865208/rumux.pdfIn PDF document text
    • https://ribobuwatefinu.weebly.com/uploads/1/3/4/4/134469587/zekakilibisuzowaze.pdfIn PDF document text
    • https://moveo-sport.pl/userfiles/file/pitejolupepa.pdfIn PDF document text
    • https://vewiwuxipax.weebly.com/uploads/1/3/2/6/132681682/deguzadaxidaxadanuji.pdfIn PDF document text
    • https://zipabuto.weebly.com/uploads/1/3/4/6/134659669/2445444.pdfIn PDF document text
    • https://buderenedisam.weebly.com/uploads/1/3/5/3/135302361/bigalo-muretozolav-busup.pdfIn PDF document text
    • https://kirikunekev.weebly.com/uploads/1/3/4/7/134737840/60f4f525.pdfIn PDF document text
    • https://titanictransporte.com/UserFiles/file/45374635675.pdfIn PDF document text
    • http://ceomit.com/fckupload/file/xilenuxudujuxorokekefix.pdfIn PDF document text
    • https://tosofovopige.weebly.com/uploads/1/3/3/9/133998067/f6bdb29.pdfIn PDF document text
    • https://dutebosolet.weebly.com/uploads/1/3/0/9/130969562/tobojutavetezizaj.pdfIn PDF document text
    • https://xewulowew.weebly.com/uploads/1/3/4/7/134757629/biwifawot-pusukatamifozu-nilekevejenaj-mevalofili.pdfIn PDF document text
    • https://kuwujevo.weebly.com/uploads/1/3/4/8/134864034/1389943.pdfIn PDF document text
    • http://dtmaso.com/public_html/Imagens/file/93950740887.pdfIn PDF document text
    • https://rumeravovavupol.weebly.com/uploads/1/3/4/6/134619367/f6b48705.pdfIn PDF document text
    • https://lokurosafo.weebly.com/uploads/1/3/4/4/134479987/5667348.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000c1e5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c1e5.bin)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1E5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d9fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FC 11036 bytes
SHA-256: a53d8e0cc3bf8784627dd536bf2971a386122d946c4fa9c75be7d752703b205b
font_02_sfnt_off0000f3b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B6 17204 bytes
SHA-256: d029039576de1c2022b1b630a064e51c326abc18ff2ef83c97ea6923c7c51cc9

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