Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb84b2ee18df835f…

MALICIOUS

PDF

77.0 KB Created: 2022-03-31 18:37:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 2f59425ef44f590275c5f7b563ffdfc2 SHA-1: c0b1155961bbb43b7b3cf87f6eeba72d26cb3455 SHA-256: cb84b2ee18df835fd0e896f05b23595227881a5c7c878469863b26de3379e668
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 7

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://tevav.co.za/YmrXLWy8?keyword=dungeons%20and%20dragons%203.5%20premade%20characters PDF link annotation
    • http://stroytehcentr.ru/images/file/45743924920.pdfIn PDF document text
    • https://lulabelu.weebly.com/uploads/1/4/1/2/141294648/3018e9ad.pdfIn PDF document text
    • https://denelabi.weebly.com/uploads/1/3/4/1/134109088/wisozilogijixo_kegomoboxefa_resaxabimili.pdfIn PDF document text
    • http://www.siposferenc.hu/html/tupedezusidenitafilib.pdfIn PDF document text
    • https://maharajganjtimes.com/assets/ckfinder/core/connector/php/uploads/files/tagixilox.pdfIn PDF document text
    • https://kapefashion.com/files/files/72978552150.pdfIn PDF document text
    • https://jewesorovusupim.weebly.com/uploads/1/3/6/0/136092124/tagutebojiwis.pdfIn PDF document text
    • https://pifaxatopegamu.weebly.com/uploads/1/3/4/1/134108845/283159.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620e1fbfa7e8e---1142269119.pdfIn PDF document text
    • https://mekadademuru.weebly.com/uploads/1/3/4/3/134367219/7054812.pdfIn PDF document text
    • http://igigeothermal.jp/userfiles/file/77130015211.pdfIn PDF document text
    • https://lefizedut.weebly.com/uploads/1/3/2/6/132681647/nafanawerefusoluz.pdfIn PDF document text
    • https://ruruzepekasoto.weebly.com/uploads/1/3/4/7/134753799/1721692.pdfIn PDF document text
    • https://nofixemi.weebly.com/uploads/1/3/6/0/136082439/xozuzeza-kunaxuda.pdfIn PDF document text
    • http://gps-ambroisie.com/ressource/site-image/files/42402836567.pdfIn PDF document text
    • https://gafekiwukuwemul.weebly.com/uploads/1/3/4/3/134313713/kewolovotir.pdfIn PDF document text
    • https://gowuriked.weebly.com/uploads/1/3/7/5/137505597/sibadatunisol.pdfIn PDF document text
    • https://jefelowomiwit.weebly.com/uploads/1/3/4/5/134599681/b000cc888f6.pdfIn PDF document text
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206354a61293---56798362009.pdfIn PDF document text
    • https://vejesare.weebly.com/uploads/1/3/4/4/134493146/givitobowozovetene.pdfIn PDF document text
    • https://biluvumilu.weebly.com/uploads/1/3/1/8/131860938/bemijobodazazodaso.pdfIn PDF document text
    • https://xogedanubukojoj.weebly.com/uploads/1/3/4/4/134491538/lamag_vademebo_wobawelit_rokotirimozi.pdfIn PDF document text
    • http://vako.vn/app/webroot/uploads/files/12736844177.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_off0000c29e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c29e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c29e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC29E 18380 bytes
SHA-256: c7c4eac21f81ed7408f6dd2b1be5440c3d0a5a65e9d9c8c708ee94bc32d72b55
font_01_sfnt_off0000f1f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010a07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A07 11296 bytes
SHA-256: 5af7e140024feae112f25cbe572ce17b5d4969c8b587c2e3f7ca53e273b9e089