Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b5a8ec5f870888…

MALICIOUS

PDF

79.8 KB Created: 2022-04-08 06:18:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 16e716dff8ab7818bc2f0c8ef429d8fd SHA-1: 7019990545c8df54254621c513277647f332b78d SHA-256: 72b5a8ec5f87088830a36e1cd7439cec98346602e7c32273860675c0a3e4b0dd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://loheb.co.za/YmrXLWy8?keyword=samuel%20beckett%20fail%20quote PDF link annotation
    • http://cosonhuath.com/hinhanh_fckeditor/file/51063072201.pdfIn PDF document text
    • https://muxiduxipa.weebly.com/uploads/1/3/5/3/135319221/6003146.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16241f44515f7a---40367754888.pdfIn PDF document text
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/cbe96ca7c9f77e8.pdfIn PDF document text
    • http://gsmontaggi.it/userfiles/files/jaliwigusidebolalebod.pdfIn PDF document text
    • https://lebipogife.weebly.com/uploads/1/3/5/9/135990957/logamo.pdfIn PDF document text
    • https://jawuzinirofona.weebly.com/uploads/1/3/4/8/134886132/fubulovo_depewizonisesa.pdfIn PDF document text
    • https://pijafajabivigin.weebly.com/uploads/1/3/4/6/134635516/7292976.pdfIn PDF document text
    • https://laval.gatr.ca/img/etablissements/files/zasomuduborobirevigabag.pdfIn PDF document text
    • https://tovepeluzon.weebly.com/uploads/1/3/4/3/134385389/5311870.pdfIn PDF document text
    • http://weighlessthisyear.com/ckfinder/userfiles/files/pijexusi.pdfIn PDF document text
    • https://hometutorsdelhi.com/userfiles/files/zatigoxonalosikivaxu.pdfIn PDF document text
    • https://bivunuse.weebly.com/uploads/1/3/5/3/135392281/239070bcb047342.pdfIn PDF document text
    • https://xalidanazate.weebly.com/uploads/1/3/6/0/136082238/jodifevafuf.pdfIn PDF document text
    • https://tefeteti.weebly.com/uploads/1/3/0/9/130969297/ximalosebomerirobal.pdfIn PDF document text
    • https://bagibobujinokat.weebly.com/uploads/1/3/5/3/135312275/gozareboje.pdfIn PDF document text
    • https://dalibigexewekef.weebly.com/uploads/1/3/2/7/132712129/dd41fd6798e.pdfIn PDF document text
    • https://xavimunemu.weebly.com/uploads/1/3/2/8/132815343/81f69fea8100f3a.pdfIn PDF document text
    • https://mgs-on-track.com/app/webroot/userfiles/file/gujelonosumibivevetimute.pdfIn PDF document text
    • http://street.bpv.su/content/files/files/daragujepajavizusubixebeb.pdfIn PDF document text
    • https://kewejoxenolubur.weebly.com/uploads/1/3/5/9/135966954/nugoxo.pdfIn PDF document text
    • http://www.kotolantopeni.cz/files/zuladuwagifanaduj.pdfIn PDF document text
    • http://projecthouse.bg/uploads/CKfinder/files/sasive.pdfIn PDF document text
    • http://geerhannutpourreussir.be/docs/upload/files/kigozagabidobafozaj.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_off0000d46e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46E 10680 bytes
SHA-256: f30fbd92ae17190f0c554242ccb0ff165b9314e94ecd49b024d02e7f4c42f310
font_01_sfnt_off0000ecfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001050e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1050E 17268 bytes
SHA-256: 5a8fbf1b96705b3f449387c101839ad99c5c3ad6857da1e7dc6c9b49f6dea8ab

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