Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c639cb31ad8d83e…

MALICIOUS

PDF

76.4 KB Created: 2022-04-05 10:34:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: a11d82dc30bd2e97cca0b4d14f6e7990 SHA-1: 9d676e18787da899720a3a515e6c8aacc92c0fe7 SHA-256: 6c639cb31ad8d83ef0e61e00caf259ae4471090ff6c922fd2978508e4012aeeb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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 http://solmoda.it/userfiles/files/xajeragovej.pdf In PDF document text
    • http://6461737.ru/upload/files/84263458832_1646146369.pdfIn PDF document text
    • http://vankouwenenmastop.nl/UserFiles/file/toxesupe.pdfIn PDF document text
    • https://www.dooleysnaturalgas.com/ckfinder/userfiles/files/gepixezilelufamiwizopa.pdfIn PDF document text
    • https://idealist.ro/userfiles/file/443893261.pdfIn PDF document text
    • http://realestatespoznan.com/uploads/vujituxanab.pdfIn PDF document text
    • http://ranjoysarkar.in/FCKeditor/file/sawijozirobugaxew.pdfIn PDF document text
    • http://www.shriramhariram.com/kcfinder/upload/files/11235921890.pdfIn PDF document text
    • http://el-master.ru/userfiles/file/feruxokixam.pdfIn PDF document text
    • https://www.nasasquirrel.org/kcfinder/upload/files/62608282564.pdfIn PDF document text
    • http://akekaluck.com/ckfinder/userfiles/files/gukopedalivuvisolexo.pdfIn PDF document text
    • http://redagowanieprac.net/Upload/file/rinemitolilomudusag.pdfIn PDF document text
    • https://4dapi.glg228.info/app/webroot/uploads/files/javilomuvidafulokajur.pdfIn PDF document text
    • https://zinixukugezevul.weebly.com/uploads/1/3/4/6/134612333/fcee0a261d467.pdfIn PDF document text
    • http://mottaing.eu/userfiles/files/92159023284.pdfIn PDF document text
    • https://mikakegurotitu.weebly.com/uploads/1/3/4/3/134309030/6e53f2a1.pdfIn PDF document text
    • http://blackswaninfotech.com/kcfinder/upload/files/nudesuk.pdfIn PDF document text
    • https://tapuionoticias.com/ckfinder/files/sowixotuxiweg.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/a1f7db319cbbd9bc8113471f10e29c91/572226951.pdfIn PDF document text
    • https://ppntassone.it/dati/upload/file/30952364764.pdfIn PDF document text
    • http://renknh.com/ckupload/files/85144312465.pdfIn PDF document text
    • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/zudodobizebimofimereri.pdfIn PDF document text
    • https://norin.co.za/YmrXLWy8?keyword=what%20do%20the%20national%20ems%20education%20standards%20doPDF 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_off0000c5b7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c5b7.bin)

Related samples 2

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_off0000c5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ddc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC9 16668 bytes
SHA-256: df463c4e1a35d62d2e0dc106738a43a995c7bc01ab2d05c7b71b4312a6c29803
font_02_sfnt_off00010946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10946 10728 bytes
SHA-256: 721fb5239aa8cbfcff1d110d21b56fecc46b27e2ebf288cbc11ebfdffeaf2118

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