Malicious PDF — malware analysis report

Static analysis result for SHA-256 550bb308cf71377c…

MALICIOUS

PDF

76.7 KB Created: 2022-05-02 16:51:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 5b4c58a3163c56b7a1a783192a9d7764 SHA-1: cf90738cd5f5f98101ffbc35e689b7a168b120cf SHA-256: 550bb308cf71377ce67271ce45f1484a6481d4cc1a5252f0bac109f72bc7c876
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://telexetobowu.weebly.com/uploads/1/3/4/3/134339901/451e4c337301e8b.pdf In PDF document text
    • https://wetusaseri.weebly.com/uploads/1/3/5/2/135297966/sizovifok_tanopakif.pdfIn PDF document text
    • https://gopufijubasid.weebly.com/uploads/1/3/1/8/131856987/e231af8.pdfIn PDF document text
    • http://vo23.ru/upload/file/66408795081.pdfIn PDF document text
    • https://dikaveri.weebly.com/uploads/1/4/1/3/141345861/ravojepenup.pdfIn PDF document text
    • https://zujamapetot.weebly.com/uploads/1/3/1/3/131381682/sunaxun_musiw_fifomefiduga.pdfIn PDF document text
    • https://pyreneesjogja.com/kcfinder/upload/files/25429122481.pdfIn PDF document text
    • https://zejuvuvegodefi.weebly.com/uploads/1/3/1/4/131453892/2566257.pdfIn PDF document text
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/162095495ef8ac---mupixujisalupel.pdfIn PDF document text
    • https://ziridesugiga.weebly.com/uploads/1/4/1/4/141469917/a77b3db.pdfIn PDF document text
    • https://phu-komplex.pl/pliki/file/gapasivowepiwazokegegowi.pdfIn PDF document text
    • https://hopadive.cz/ckfinder/userfiles/files/34394136987.pdfIn PDF document text
    • http://radiosalsa.fr/php/rs/filesupload/file/83387005108.pdfIn PDF document text
    • https://gutofotolol.weebly.com/uploads/1/3/4/4/134403401/e0c520fcf35.pdfIn PDF document text
    • https://sawilemevopano.weebly.com/uploads/1/3/4/5/134577559/vidotoromixemun_laxik_kumur.pdfIn PDF document text
    • https://kumodexuzijole.weebly.com/uploads/1/4/1/5/141503708/39c6921778b.pdfIn PDF document text
    • https://fultoys.com/userfiles/40309132600.pdfIn PDF document text
    • https://lunixomowomok.weebly.com/uploads/1/3/4/8/134859132/kiromixela.pdfIn PDF document text
    • https://doxejukunalizep.weebly.com/uploads/1/3/4/8/134889306/5837074.pdfIn PDF document text
    • https://megutuxexo.weebly.com/uploads/1/4/1/4/141444815/wuperiteri.pdfIn PDF document text
    • http://brilliantsolarpaneling.com/userfiles/file/62470500774.pdfIn PDF document text
    • http://seoulsquare.com/userfiles/file/54306729680.pdfIn PDF document text
    • https://mifuj.co.za/YmrXLWy8?keyword=what%20is%20creative%20writing%20for%20grade%205PDF link annotation
    • https://vuledojovux.weebly.com/uploads/1/3/5/9/135962602/b74e1fd008.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_off0000c6f9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c6f9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6F9 16744 bytes
SHA-256: 6ab9b328be6d8ba2b9fba670ff3be0e10614d65fd5536c5df7a94dd1d1901431
font_01_sfnt_off0000f2af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AF 10988 bytes
SHA-256: 1636c1157e1e5d0001192d3a2e32355d63e0ad9aa8a2a7962911d548df561a60
font_02_sfnt_off00010c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C16 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1