Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a179728362a3a64…

MALICIOUS

PDF

76.8 KB Created: 2022-05-07 00:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 22780aab11bce2cb01d06e97bcf1f741 SHA-1: 1981d9d58757d84fc4b7ca7da0e76dbf136e5b27 SHA-256: 5a179728362a3a64dbaa324c4e6492c3a57053b80db4c4c0ec230ccb7c565373
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 7

  • 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.
  • 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 https://sunuf.co.za/YmrXLWy8?keyword=kptcl%20recruitment%202018-%2019%20notification%20pdf%20online%20application%20online%20apply PDF link annotation
    • https://vasidigugadojo.weebly.com/uploads/1/3/0/9/130969577/ad6a41a079.pdfIn PDF document text
    • https://namhunglogistic.vn/site/files/dowuvusogogajir.pdfIn PDF document text
    • https://wagigezo.weebly.com/uploads/1/3/0/7/130775958/dupitipomixetev.pdfIn PDF document text
    • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/rdu61ovsv51jancn754k9jms71/84693791144.pdfIn PDF document text
    • https://piziwola.weebly.com/uploads/1/3/1/3/131382430/7080701.pdfIn PDF document text
    • https://zaxefuki.weebly.com/uploads/1/3/5/2/135299090/01c2761.pdfIn PDF document text
    • https://koverirenupoma.weebly.com/uploads/1/3/4/7/134747520/63f838f4.pdfIn PDF document text
    • https://fiwibafufo.weebly.com/uploads/1/3/0/7/130774969/fijapa.pdfIn PDF document text
    • https://rutesobob.weebly.com/uploads/1/3/1/8/131856950/jasumilekosa-zupavozebuk-zegafidijag.pdfIn PDF document text
    • https://kuxobemif.weebly.com/uploads/1/3/1/3/131379353/noliwu-dafosefe-fiwoz.pdfIn PDF document text
    • https://sokimazivad.weebly.com/uploads/1/3/4/6/134620474/1c9ed.pdfIn PDF document text
    • https://runizupila.weebly.com/uploads/1/3/4/3/134320381/zujojobakogele-baxenezefa-supiv.pdfIn PDF document text
    • https://xobaninogesojep.weebly.com/uploads/1/4/1/5/141536948/7182db85ea.pdfIn PDF document text
    • https://tujuveduveb.weebly.com/uploads/1/3/1/8/131871390/5854818.pdfIn PDF document text
    • https://mojikusabuja.weebly.com/uploads/1/3/5/3/135301399/3669682.pdfIn PDF document text
    • https://jopikivapanip.weebly.com/uploads/1/3/4/8/134854077/05610007da1c071.pdfIn PDF document text
    • http://schokofontaenen.de/idata/35330229998.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/66169570828.pdfIn PDF document text
    • https://t2sc.me/userfiles/gogexekumude.pdfIn PDF document text
    • https://padilokemim.weebly.com/uploads/1/3/1/3/131381900/4849282b.pdfIn PDF document text
    • https://fexegidonowagi.weebly.com/uploads/1/3/5/3/135325594/lumufumolijigumuxami.pdfIn PDF document text
    • https://securitydm.eu/slicice/file/40166634616.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_off0000c3ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3EA 11524 bytes
SHA-256: 025c8d9e473a1ecfee73d906624909ec8e0b174e0b536a2e7ace71fc335ce103
font_01_sfnt_off0000df5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f76e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF76E 16932 bytes
SHA-256: 75ace4add330744c405de7b5acdda574636e029800bf82913b8ea7034e9f8a62