Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc0d6b4625169a1…

MALICIOUS

PDF

80.2 KB Created: 2022-04-01 08:39:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: cba7fd42898fde36e7bbb9db5ad2a5ff SHA-1: 8a22ecfbd65aa2c2ab9ee5360666e6ea7f209ebc SHA-256: 1dc0d6b4625169a12ed41789104a2df72a434a646c1664aff084740e918fa2eb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://norin.co.za/YmrXLWy8?keyword=pasos%20para%20hacer%20un%20ensayo%20de%20comparaci%C3%B3n%20y%20contraste PDF link annotation
    • https://latework.cz/soubory/zukadimokoboxexudugapem.pdfIn PDF document text
    • http://pollibox.com/assets/uploads/files/72118724518.pdfIn PDF document text
    • https://bifixebuwo.weebly.com/uploads/1/3/0/7/130776276/mujafurupesalisivu.pdfIn PDF document text
    • https://trungtamgiasuhcmmq.com/uplaod/quangtri/files/vojegutufilufegonorez.pdfIn PDF document text
    • http://mos-craciun-inchiriere.ro/fckfiles/file/tusurukutupisetegiboz.pdfIn PDF document text
    • http://tw-sincere.com/upfiles/editor/files/vovebumagokidif.pdfIn PDF document text
    • https://razebefalokugex.weebly.com/uploads/1/3/4/8/134895215/jetipuzosa_xuwemarajepe_nikobu.pdfIn PDF document text
    • http://chestheart.org/assets/ckeditor/kcfinder/upload/files/kixupavesulumap.pdfIn PDF document text
    • http://myoffice2561.sesao33.net/UserFiles/File/ladeki.pdfIn PDF document text
    • http://momsystem.ru/public/file/buwodamajizurimomi.pdfIn PDF document text
    • http://www.gobarging.com/uploads/textareas/file/98669793588.pdfIn PDF document text
    • https://bezuxinawe.weebly.com/uploads/1/3/4/6/134600255/junetatar.pdfIn PDF document text
    • https://xoxamotanu.weebly.com/uploads/1/3/4/6/134653835/wavananadojeman-siwinati.pdfIn PDF document text
    • https://zakikubefetopu.weebly.com/uploads/1/3/2/6/132696201/c074ffeb3.pdfIn PDF document text
    • https://sewetinupas.weebly.com/uploads/1/3/3/9/133997680/kijawefon.pdfIn PDF document text
    • http://mitrasejati.co.id/assets/kcfinder/upload/files/13985078224.pdfIn PDF document text
    • https://vadanidubaseb.weebly.com/uploads/1/3/6/0/136089859/2778867.pdfIn PDF document text
    • https://galofufe.weebly.com/uploads/1/3/1/3/131384583/sawobumumub.pdfIn PDF document text
    • https://kozivusetusi.weebly.com/uploads/1/3/4/2/134234967/vugekepevu.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F1 11084 bytes
SHA-256: 77b5df57d8c1378369150798c0c4bbea3a9ec7612ce4fb94050610270185b156
font_01_sfnt_off0000ea6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6B 17780 bytes
SHA-256: ae933e79656da148bf3110d6c17a542228c76d6e6164113c62dbe2e80bbbef51
font_02_sfnt_off000117a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117A9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1