Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6d89a8eb124010…

MALICIOUS

PDF

71.7 KB Created: 2022-04-04 19:45:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 321c59c3dee4b8c62d481c9d0bb23e95 SHA-1: 8ca224b9f1910fa1c64f0ba1b0020a10b1f2284c SHA-256: ca6d89a8eb124010105a6089953e2a6c8d52ed945647da47f946d1a321235020
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://lazav.co.za/YmrXLWy8?keyword=estructura%20inductiva%20texto%20argumentativo PDF link annotation
    • http://esteel.my/userfiles/file/newiwoza.pdfIn PDF document text
    • https://xazotanosiwe.weebly.com/uploads/1/3/4/3/134314219/7918568.pdfIn PDF document text
    • https://dusivasawomila.weebly.com/uploads/1/3/4/6/134660852/8f17b1fa9c8ee70.pdfIn PDF document text
    • https://investin-khj.ir/ckfinder/userfiles/files/333309129.pdfIn PDF document text
    • https://ranuxibat.weebly.com/uploads/1/3/4/5/134595997/b8abdfe9.pdfIn PDF document text
    • https://jonumupemusegiw.weebly.com/uploads/1/3/0/8/130874210/gulasatep.pdfIn PDF document text
    • https://xutekesavugev.weebly.com/uploads/1/3/5/3/135316407/kobikedakuruzif_tirufanerujig_mijajurawilit_ralofujilizovi.pdfIn PDF document text
    • https://adrfarysz.pl/userfiles/file/70196357473.pdfIn PDF document text
    • https://motelandratecuci.ballroom-andra.ro/userfiles/file/84592077494.pdfIn PDF document text
    • http://kimsanghun.com/upload/userfiles/file/2022219151588514.pdfIn PDF document text
    • http://jlssj.com/qianzi/upfile/case_editor/file/21223172933.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/dolejadome.pdfIn PDF document text
    • https://bokawagorulok.weebly.com/uploads/1/3/4/2/134234603/kafovejixa_pubufira.pdfIn PDF document text
    • https://punafatig.weebly.com/uploads/1/3/1/4/131408139/dccf07.pdfIn PDF document text
    • http://serwisnawigacji.pl/userfiles/file/21721979846.pdfIn PDF document text
    • https://residencialparquenorte.es/kcfinder/upload/images/files/rolug.pdfIn PDF document text
    • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/45437669750.pdfIn PDF document text
    • https://unicorn.mn/js/ckfinder/userfiles/files/2076435602.pdfIn PDF document text
    • http://filmovani.eu/img-content/files/xugadokolutogezafew.pdfIn PDF document text
    • https://kozikimonewuzo.weebly.com/uploads/1/3/4/5/134592445/nulinabediz.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_off0000b3ad.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b3ad.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b3ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3AD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cbbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBF 17728 bytes
SHA-256: 52d89f985dea3e12e31858dfaed2da8b22882ba698d669faf5a6433c99474423
font_02_sfnt_off0000f833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF833 10920 bytes
SHA-256: 666635f325163f057746bf3961cc0ba5b65a5b96622932898369547417b370a8