Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1f855adb380af8…

MALICIOUS

PDF

113.8 KB Created: 2022-03-30 11:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 12bca141ace18dd8e9b0f7577b0aeae5 SHA-1: 9f02dc0acdc89334c2d05ea1d7f345252fb0754b SHA-256: 5a1f855adb380af8239a32bba34f3b54ec28c9a8b39bb7a288259d8c0031425f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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://fecuq.co.za/YmrXLWy8?keyword=corsair%20cx750m%20750w%20power%20supply%20review PDF link annotation
    • https://perfectionistpaintingnj.com/ckfinder/userfiles/files/welijezevejetajefepibaf.pdfIn PDF document text
    • http://dieukhactransam.com/uploads/files/46692111931.pdfIn PDF document text
    • https://vobawele.weebly.com/uploads/1/3/5/3/135334277/587e8d563.pdfIn PDF document text
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/ed30ce48ad24.pdfIn PDF document text
    • https://sokazavuse.weebly.com/uploads/1/3/1/3/131378988/7821922.pdfIn PDF document text
    • https://kaptenhoki.com/contents/files/sipoxajuperofidibugi.pdfIn PDF document text
    • https://bageribo.weebly.com/uploads/1/3/4/5/134592059/noxajulojano.pdfIn PDF document text
    • http://smenergy.kr/uploaded/file/3044866126220ccca9e78b.pdfIn PDF document text
    • https://kodepukezaxa.weebly.com/uploads/1/3/4/6/134665187/mavaletapumimok-mudofatodu-pepamivov.pdfIn PDF document text
    • https://gewukojinita.weebly.com/uploads/1/3/2/7/132712116/sakarujadebavug.pdfIn PDF document text
    • https://ruta.hu/ckfinder/userfiles/files/zagewes.pdfIn PDF document text
    • http://roler-dv.ru/upload/files/woluxudej.pdfIn PDF document text
    • https://yun2u.com/upload/files/67459162295.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16217f5e0f0c9f---watigeromalo.pdfIn PDF document text
    • https://nabisipiguges.weebly.com/uploads/1/3/4/4/134432296/d09cdfd1.pdfIn PDF document text
    • http://sieuthiduanbds.com.vn/kcfinder/upload/files/vawelanozobebejutumakezi.pdfIn PDF document text
    • https://sizamefoz.weebly.com/uploads/1/3/2/7/132740636/b856bf19.pdfIn PDF document text
    • http://sccsfz.org/upload/2022-03/jevezovavin.pdfIn PDF document text
    • https://zitidatuviwe.weebly.com/uploads/1/3/4/4/134493200/nogexegi.pdfIn PDF document text
    • https://pesuwoleze.weebly.com/uploads/1/3/5/2/135295903/pifetejoguzop.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/366fc996e18910f7d1355af4b0072bf6/povutokobapipozasojixezar.pdfIn PDF document text
    • https://bekekomigeb.weebly.com/uploads/1/3/7/5/137505653/dupiloboxunivor-tazeka.pdfIn PDF document text
    • https://letotanuvimipe.weebly.com/uploads/1/3/4/5/134598603/koxafezi-tigapila-jixuvimowizinux-nodepitesixekeb.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_off00015400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15400 18968 bytes
SHA-256: e68f22f49443f9bf9891f2ccd9debc812e35ee14051c6f91d1365605f6d62e03
font_01_sfnt_off0001860a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1860A 11136 bytes
SHA-256: 790d531c67c68c9cf600c3f066b27e0173e02c4ea4f1d5aec6ddf6cb82ee0279
font_02_sfnt_off0001a04b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A04B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336