Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f36bf61dcf62b16…

MALICIOUS

PDF

76.3 KB Created: 2022-04-19 14:38:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: c9bace6f7d4891cf00e055367ac7d25a SHA-1: 01de7e2dcd5ee58eb7d89bab572fcaca02426a6c SHA-256: 5f36bf61dcf62b16600fa131a916f8e79267e15b2b3ca0354bc6bbcaffd521aa
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://marathonlaval.com/userfiles/files/65379359959.pdf In PDF document text
    • https://jafuxudaxifi.weebly.com/uploads/1/3/0/7/130739212/woninonovusegodu.pdfIn PDF document text
    • https://gujojiri.weebly.com/uploads/1/3/4/4/134434224/6547326.pdfIn PDF document text
    • https://xabomipa.weebly.com/uploads/1/3/4/4/134484571/1876923.pdfIn PDF document text
    • https://tozobaveje.weebly.com/uploads/1/3/7/5/137501006/kuwizifup.pdfIn PDF document text
    • http://anhbanglaw.com/userfiles/file/96541168505.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624e932caf151---xaxivozifiwunesakexus.pdfIn PDF document text
    • https://mepanegeloja.weebly.com/uploads/1/3/4/7/134759112/xevotewumaw.pdfIn PDF document text
    • https://welerenumabo.weebly.com/uploads/1/3/4/4/134467224/nimez_pejox.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161f99324d4970---xabup.pdfIn PDF document text
    • https://wisowoturap.weebly.com/uploads/1/3/1/4/131453432/xilavop.pdfIn PDF document text
    • https://vudefuzafovafid.weebly.com/uploads/1/3/4/6/134630521/6efd1ec64d1d72.pdfIn PDF document text
    • https://fajenususa.weebly.com/uploads/1/3/4/5/134588094/7563562.pdfIn PDF document text
    • http://fajni565.fun4two.pl/uploads/assets/file/fipizetasaxepozolap.pdfIn PDF document text
    • https://futiwoku.weebly.com/uploads/1/3/5/9/135957929/8e5d2ef8ddf8fa.pdfIn PDF document text
    • https://zerurejapom.weebly.com/uploads/1/3/5/9/135964845/cb08ce79a1.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=nostalgia%20air%20popcorn%20maker%20instructionsPDF 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 extracted file (font_00_sfnt_off0000c011.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c011.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_off0000c011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC011 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD828 10888 bytes
SHA-256: 2168130e63aab905f791474619374bd5ecfae081784ec1008c41f8b70007b5ea
font_02_sfnt_off0000f15b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15B 18712 bytes
SHA-256: d6c1b3fe9d87756d1f425cfad03d81b496f5d3bcf38f363ff93dd285c3d79652

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