Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8f4f2f65ab6526…

MALICIOUS

PDF

78.1 KB Created: 2022-04-12 16:34:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 4f197f5c3ff6dec350b7963bb366316a SHA-1: 1ec4854896992e14d957d01f761904069a64c070 SHA-256: aa8f4f2f65ab6526c384a321edad7660983fde96c07816657bd8f5de73ef96ee
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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://yubit.co.za/YmrXLWy8?keyword=3%20tipos%20de%20comunicacion%20pasiva%20agresiva%20y%20asertiva PDF link annotation
    • https://notumukisuv.weebly.com/uploads/1/4/1/2/141293665/4575730.pdfIn PDF document text
    • https://kevulukopefot.weebly.com/uploads/1/3/1/4/131453006/4135915.pdfIn PDF document text
    • https://mifepomaxa.weebly.com/uploads/1/3/4/8/134897651/difuw.pdfIn PDF document text
    • https://venonaneguwar.weebly.com/uploads/1/3/5/3/135398509/jowobefav-gapud-xopamedigeju-vixugero.pdfIn PDF document text
    • https://talokawibameze.weebly.com/uploads/1/3/4/0/134000376/ba0ce37a859f6.pdfIn PDF document text
    • https://namulore.weebly.com/uploads/1/3/4/0/134017746/nisagagufibafo.pdfIn PDF document text
    • https://xoboxevoz.weebly.com/uploads/1/3/2/7/132740619/kakivurifiriwolapawa.pdfIn PDF document text
    • https://mokapojigum.weebly.com/uploads/1/3/4/6/134690111/7c475ae2.pdfIn PDF document text
    • https://lajeforuful.weebly.com/uploads/1/3/4/5/134526525/tozikumetazesuwip.pdfIn PDF document text
    • https://www.akita-tourism.com/assets/admin/plugins/kcfinder/files/totamifovikakekalesox.pdfIn PDF document text
    • https://sobomevoza.weebly.com/uploads/1/3/0/7/130739746/f55a336b4.pdfIn PDF document text
    • https://givumiwiv.weebly.com/uploads/1/3/4/8/134879308/pipigire_samomaropet_kuruzerapexox_pemofa.pdfIn PDF document text
    • https://tenivutod.weebly.com/uploads/1/3/1/0/131070705/tutalom.pdfIn PDF document text
    • https://tekoriforeta.weebly.com/uploads/1/3/4/6/134639422/9894733.pdfIn PDF document text
    • https://toxutumopomepe.weebly.com/uploads/1/3/5/3/135327812/wifabiju-zoroma-jupujezi-fawotenaguta.pdfIn PDF document text
    • https://aquamedicasatumare.ro/ckfinder/userfiles/files/40455016961.pdfIn PDF document text
    • http://ulv-fogger.ru/d/files/63045277483.pdfIn PDF document text
    • https://jepusorowuw.weebly.com/uploads/1/3/4/3/134370943/laketuvabunepilu.pdfIn PDF document text
    • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/7255570f1290d2008a404041128ec158/wapivowabib.pdfIn PDF document text
    • https://kavesitifur.weebly.com/uploads/1/3/7/5/137501746/ac9bae7670b4.pdfIn PDF document text
    • https://labukobirexuf.weebly.com/uploads/1/3/7/5/137509753/db373badd6.pdfIn PDF document text
    • https://tonosunakimedu.weebly.com/uploads/1/3/4/5/134584607/pumikuk.pdfIn PDF document text
    • https://xadarerisisiw.weebly.com/uploads/1/3/2/6/132682239/tagiw-gitezagesoxexal.pdfIn PDF document text
    • https://linefalaxig.weebly.com/uploads/1/3/2/6/132682404/2002d.pdfIn PDF document text
    • https://giduwuxudi.weebly.com/uploads/1/3/4/7/134716719/gusitojujuro.pdfIn PDF document text
    • http://irodaszer.lukinserv.hu/file/refiziwopu.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_off0000c96d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC96D 17996 bytes
SHA-256: 5d8d98ae42c9382122033d5aab9dd8581ff557373f8f1b3ef1b91eeae32c08d6
font_01_sfnt_off0000f694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF694 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EAB 11164 bytes
SHA-256: 193d07891fb1c8a5a552c7fe615e72dfd679e9164d2012cba26693e9814b4bf7