Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc8988ccc55262d…

MALICIOUS

PDF

77.0 KB Created: 2022-03-30 18:35:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 7fa74a981bd983512eecf0353d6d792a SHA-1: 922decef0e423d54c4ea50c0dc7263f4b64d9957 SHA-256: 3bc8988ccc55262d3e88d51bf126ec150e9ae69d410e11b4b0d21988c676a680
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=mass%20flow%20rate%20nasa%20grc PDF link annotation
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/142c8d0016ce22783eb9b48d4b94cc22/9382036694.pdfIn PDF document text
    • https://comlosumare.ro/userfiles/file/dojiwexidijoxowu.pdfIn PDF document text
    • https://bamewubi.weebly.com/uploads/1/3/2/3/132303354/640f4706c40402.pdfIn PDF document text
    • https://cbmpolska.pl/www/js/kcfinder/upload/files/felajuxariwogawa.pdfIn PDF document text
    • https://woliremokeg.weebly.com/uploads/1/3/4/3/134340334/gixena.pdfIn PDF document text
    • https://wowemaba.weebly.com/uploads/1/3/1/3/131380083/4834b23ca35a1.pdfIn PDF document text
    • http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/7185524417.pdfIn PDF document text
    • http://damutech.kz/upload/2022/03files/220316151541362424hf54g.pdfIn PDF document text
    • http://media-production.net/admin/ckfinder/userfiles/files/torerogur.pdfIn PDF document text
    • http://ildungrice.com/fileupload/fckeditor/file/95786921395.pdfIn PDF document text
    • https://neremepapo.weebly.com/uploads/1/3/4/6/134653798/togerozarokuv.pdfIn PDF document text
    • https://xubivotalo.weebly.com/uploads/1/3/0/7/130775972/feveve.pdfIn PDF document text
    • http://nakajima-ya.com/user_data/image/file/49537830783.pdfIn PDF document text
    • https://lozorodarefela.weebly.com/uploads/1/3/2/6/132681783/5152846.pdfIn PDF document text
    • http://psystems.gr/Administrator/uploads/userpics/OutPostImages/files/87881909562.pdfIn PDF document text
    • http://martonfogtechnika.hu/admin/kcfinder/upload/files/10864260482.pdfIn PDF document text
    • http://marcelponjee.nl/ponjeefiles/file/69986479737.pdfIn PDF document text
    • https://cemb.ca/upload/editor/file/vesusepeveza.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_off0000c9d6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c9d6.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9D6 10496 bytes
SHA-256: e4e00e13e6c0c0c1a4cbb93d4add4f39a5ce5f4ab43603bf94382c204d3c7632
font_01_sfnt_off0000e1fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FA 17172 bytes
SHA-256: 7ac1578c7d1eabdd094d3530e020794fed78140413b2f4ea459164efa29545be
font_02_sfnt_off00010f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F00 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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