Malicious PDF — malware analysis report

Static analysis result for SHA-256 20517790cbb07ad9…

MALICIOUS

PDF

114.7 KB Created: 2022-04-18 04:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-19
MD5: e60671e4438c9743d4184c9153074b8d SHA-1: 7d5889b18f1e3bd8189afc7a148840a238f3fa82 SHA-256: 20517790cbb07ad92f4acb8f95fe64e592c9eee96a61bbd4a0983668c62031d8
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://loheb.co.za/YmrXLWy8?keyword=how%20to%20create%20grub.cfg%20file PDF link annotation
    • https://buzegiregusa.weebly.com/uploads/1/3/6/0/136082094/02e3d.pdfIn PDF document text
    • https://dirojobadenanew.weebly.com/uploads/1/3/4/1/134109317/rasomux-bexazajomu-likilikuzefena-lisapixexud.pdfIn PDF document text
    • https://pabebubi.weebly.com/uploads/1/3/2/6/132695301/katipejesixavizowepe.pdfIn PDF document text
    • http://www.bufolari.com/public/immagini/file/83278864056.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/tijitogisuzuzo.pdfIn PDF document text
    • https://xanikuxesovedew.weebly.com/uploads/1/3/4/2/134235486/4b9d42ad1.pdfIn PDF document text
    • https://tazujunage.weebly.com/uploads/1/3/5/3/135318046/lemufolow-gibaborobu-fakupodomakigam-nuvod.pdfIn PDF document text
    • https://vusubidasezojix.weebly.com/uploads/1/3/5/3/135399418/silemububip-zinunujomazuve.pdfIn PDF document text
    • https://nanopimage.weebly.com/uploads/1/3/1/3/131398258/2063999.pdfIn PDF document text
    • https://dewoteleze.weebly.com/uploads/1/4/1/4/141484984/sozifojuruleze_miwer_vigix.pdfIn PDF document text
    • https://lotojenamiz.weebly.com/uploads/1/3/1/3/131381761/2291935.pdfIn PDF document text
    • https://ponitunol.weebly.com/uploads/1/3/4/7/134747778/zenikazowatimetujep.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/10971331aa573c8.pdfIn PDF document text
    • https://dowanudamedi.weebly.com/uploads/1/3/1/3/131398164/e411a.pdfIn PDF document text
    • https://sekikeke.weebly.com/uploads/1/3/4/7/134739811/vizetijukajeku.pdfIn PDF document text
    • https://zazowabuk.weebly.com/uploads/1/3/4/6/134641257/95079f28c94a4a.pdfIn PDF document text
    • https://bufibefoxoxopij.weebly.com/uploads/1/3/4/4/134489975/969123880196e5.pdfIn PDF document text
    • https://ip-pharma.net/data/files/19702055915.pdfIn PDF document text
    • https://lafajadisevo.weebly.com/uploads/1/3/1/4/131454770/6237590.pdfIn PDF document text
    • https://wesobopaforok.weebly.com/uploads/1/3/5/3/135311180/6521506.pdfIn PDF document text
    • https://vibupawovilopi.weebly.com/uploads/1/3/4/3/134377541/25ed1a5db5bb.pdfIn PDF document text
    • https://gasirawudalanud.weebly.com/uploads/1/4/1/2/141251143/zejopafemuvaw-taganetako-doboravazopotuv.pdfIn PDF document text
    • https://hungarogun.hu/feltoltes/files/10111738630.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_off00015a8b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00015a8b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015a8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A8B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001729d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1729D 18404 bytes
SHA-256: a8575fa30f09e46fd5c80d8c469ff71e5f13e845bb1f0bbbf2ba9d30cf4a1425
font_02_sfnt_off0001a410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A410 10620 bytes
SHA-256: 090b68139c20b27621edd9300dc467d438fe58b9bc048a2cac118c5401bee556