Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6a513af4e4da88…

MALICIOUS

PDF

72.7 KB Created: 2021-09-18 03:35:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: f59ffadb29ec59a9126b3e86f80f055b SHA-1: cb34cf6c8c26420f12d8a097c9c9424fac80a1ea SHA-256: 2b6a513af4e4da88f1bf3edf5c35c0ba2faf3d05e4d0b9ce188c51ee8b32eb19
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://ameshamagazine.com/js/upload/files/56930323128.pdf In PDF document text
    • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/81465996982.pdfIn PDF document text
    • http://ekhoron21.mn/uploads/files/49440623468.pdfIn PDF document text
    • http://ateliergermain.club/sites/default/files/file/60788216558.pdfIn PDF document text
    • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613a7b82d1bbe---susojidefakofewifivebi.pdfIn PDF document text
    • http://infinity8talents.com/userfiles/file/mitewajefimekidufavimogu.pdfIn PDF document text
    • http://wingmanresearch.com/userfiles/files/figelujaxiw.pdfIn PDF document text
    • https://alasclub.gr/neuro/ckfinder/userfiles/files/kejibegojevuritegekevep.pdfIn PDF document text
    • http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210916_8A7808ACAC36663F.pdfIn PDF document text
    • https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/1408019580.pdfIn PDF document text
    • https://enilubricant.hoakhanh.vn/uploads/image/files/35391511817.pdfIn PDF document text
    • http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/kogun.pdfIn PDF document text
    • http://24cvety.ru/upload/files/zujozifaw.pdfIn PDF document text
    • http://hzyixiangchem.com/upload/files/88997481567.pdfIn PDF document text
    • http://aatmicscience.org/asuserfiles/file/wedomolurewanasiraw.pdfIn PDF document text
    • http://trieuduong.com/images/Download/49955828580.pdfIn PDF document text
    • https://mobilpetrol.olajpark.hu/files/files/69946286310.pdfIn PDF document text
    • http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wiwofamuriji.pdfIn PDF document text
    • https://kopari.hu/files/file/15022376513.pdfIn PDF document text
    • http://mkngsp.ru/upload/files/8606135170.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613b040cd3f88---xodazitowepasarugutasowad.pdfIn PDF document text
    • https://xo-sound.ru/userfiles/file/36608316679.pdfIn PDF document text
    • http://www.photonics-science.com/ckfinder/userfiles/files/42230189070.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=hack+surface+rt+to+run+androidPDF link annotation
    • 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_off0000baa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAA4 16488 bytes
SHA-256: ee438854ddb3eea9619099e3b6dd49282ce29a0d8312194ffd01e875a34be5b4
font_01_sfnt_off0000e557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE557 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6E 10608 bytes
SHA-256: d927b3ca47a528a3c02302f832b61ec1b36d4e16af2cecccf98b76fcf8147025

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