Malicious PDF — malware analysis report

Static analysis result for SHA-256 4789a9f7fe186489…

MALICIOUS

PDF

73.0 KB Created: 2022-04-06 01:35:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 607380442a61e809023b1dfc4ee8d5fe SHA-1: 522b66c8a52cde5281ea7cf462d46c56a5a88cff SHA-256: 4789a9f7fe18648918d944e53fc13c5f794c3daec40371995f2b61f5f6403124
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://sunuf.co.za/YmrXLWy8?keyword=how%20to%20say%20nurse%20aide%20in%20spanish PDF link annotation
    • https://wixokaregojes.weebly.com/uploads/1/3/2/6/132681478/6323827.pdfIn PDF document text
    • https://xikobidena.weebly.com/uploads/1/3/6/0/136097244/9d954de.pdfIn PDF document text
    • https://kovibokasekur.weebly.com/uploads/1/3/4/8/134880184/9809422.pdfIn PDF document text
    • https://zezujigodet.weebly.com/uploads/1/3/4/0/134012897/2efdd.pdfIn PDF document text
    • https://pedutiwoda.weebly.com/uploads/1/3/4/4/134481784/ce5d412ed39b4bf.pdfIn PDF document text
    • https://banafazag.weebly.com/uploads/1/3/4/3/134325205/6070799.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/9593052447.pdfIn PDF document text
    • https://tagelararejo.weebly.com/uploads/1/3/4/8/134846357/1e5e3f5903.pdfIn PDF document text
    • https://datamabijiremu.weebly.com/uploads/1/3/4/6/134691522/mukonewa_sarinenoma_wigenetepekaxe.pdfIn PDF document text
    • https://nutakofo.weebly.com/uploads/1/3/4/8/134894975/nonameda-lexonazotikuje.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/ce7818325a255824b91ce97d97227792/jekusi.pdfIn PDF document text
    • https://defusisiz.weebly.com/uploads/1/3/4/5/134599350/4553872.pdfIn PDF document text
    • https://povuwexaruvave.weebly.com/uploads/1/3/4/8/134867965/9fe5ee565b4e72f.pdfIn PDF document text
    • https://lupofavegevo.weebly.com/uploads/1/3/5/3/135335207/burosikeruka.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_off0000b8b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8B2 17048 bytes
SHA-256: 175874616f769fef14f77f2239129644b509336cc3b315bad2dc56c32163f1c5
font_01_sfnt_off0000e546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE546 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fd5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5D 10732 bytes
SHA-256: 9c3677716bd3b313e43950a10710b92b8a40f2dabc25c05bd84c2dd30dbd23c8