Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f6aa32b92acf16…

MALICIOUS

PDF

83.5 KB Created: 2022-05-04 23:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 9aa87e73db34ab181565e8f479a905c1 SHA-1: 0ec1f6393005749e1b4f5d3be10841702d021b31 SHA-256: a4f6aa32b92acf165f193423038fc2937b3c13f9e8c7bb0520c76e6b19e5da93
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9861

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://fecuq.co.za/XSRYdR1H?utm_term=aws+ec2+interview+questions+and+answers+pdf+template+download+pdf+format PDF link annotation
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/162015faed8f8e---begovedulojifuximuwupaj.pdfIn PDF document text
    • http://vesimport.ru/userfiles/file/1443347245.pdfIn PDF document text
    • https://nanupubixo.weebly.com/uploads/1/3/0/9/130969545/3341953.pdfIn PDF document text
    • http://whuntex.info/userfiles/file/21947418539.pdfIn PDF document text
    • https://tefizaset.weebly.com/uploads/1/3/4/5/134587169/famir_jepedifom_rakogawevivog.pdfIn PDF document text
    • http://australiandc.eu/uploads/ckeditor/files/sigepenebufotirirozefo.pdfIn PDF document text
    • https://sejesomizibiji.weebly.com/uploads/1/3/5/3/135346687/nunuwupivozinilibij.pdfIn PDF document text
    • https://juvuxoxeziw.weebly.com/uploads/1/3/4/3/134313380/zezub.pdfIn PDF document text
    • http://www.almansori-ye.com/almansorifiles/files/22393063132.pdfIn PDF document text
    • http://jcmb.gris-de-payne.fr/app/webroot/kcfinder/files/zorotifoziribogesupebib.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/dowelerisewulelo.pdfIn PDF document text
    • http://moje-stranky.eu/userfiles/file/datuxozirelaf.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16231520d45429---silav.pdfIn PDF document text
    • https://jumofawulagap.weebly.com/uploads/1/3/4/4/134486933/luweri.pdfIn PDF document text
    • https://wufurivukotep.weebly.com/uploads/1/3/4/5/134585879/wobaz-dofukafogonu.pdfIn PDF document text
    • https://pt-lb1.pasarantogel.com/contents/files/96934183193.pdfIn PDF document text
    • https://ludifevijof.weebly.com/uploads/1/4/1/5/141589070/9e41450926.pdfIn PDF document text
    • https://kululukeju.weebly.com/uploads/1/3/4/3/134371963/vofukemeto.pdfIn PDF document text
    • https://paxaxidelubexid.weebly.com/uploads/1/3/4/3/134344916/baxifazedusam.pdfIn PDF document text
    • https://pazowega.weebly.com/uploads/1/3/2/3/132303248/lufepomuxibapok-katovakufukak-kininun-fefaxexonijewu.pdfIn PDF document text
    • https://kixagurizeno.weebly.com/uploads/1/4/1/3/141318233/fd311ce0.pdfIn PDF document text
    • https://mizavujubamu.weebly.com/uploads/1/3/0/7/130775062/0044774c7436b7.pdfIn PDF document text
    • http://albachiara.info/userfiles/files/51958282675.pdfIn PDF document text
    • https://demogudizaz.weebly.com/uploads/1/4/1/2/141258011/5aa5291f4.pdfIn PDF document text
    • https://hr-serdahel.hu/images/file/89498059427.pdfIn PDF document text
    • https://xtrafitcoaching.com/www/images/files/xipesopuditebuboj.pdfIn PDF document text
    • https://sufimaxunexex.weebly.com/uploads/1/3/4/3/134345405/xobudowenidukowuraz.pdfIn PDF document text
    • https://amatnieks.com/pictures/image/senibetowagiwomafiximil.pdfIn PDF document text
    • https://wmu24.ru/media/file/xusepawifibedi.pdfIn PDF document text
    • https://gasonikegepifiv.weebly.com/uploads/1/4/1/4/141442693/540bf6e8b44.pdfIn PDF document text
    • http://garmin2.ddbseven.cl/userfiles/file/22252437609.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/3888347053236e1e519d43af5f1d95e5/25273979058.pdfIn PDF document text
    • http://www.centralperdana.com/file/52703343879.pdfIn PDF document text
    • https://kekuzisalan.weebly.com/uploads/1/3/0/8/130813403/9931593.pdfIn PDF document text
    • http://realcomfort.ru/content/upload/file/51680170618.pdfIn PDF document text
    • https://zumonula.weebly.com/uploads/1/3/5/3/135323502/4403106.pdfIn PDF document text
    • https://gubijebe.weebly.com/uploads/1/3/1/4/131483267/3825794.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_off0000df1e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000df1e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF1E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF735 11280 bytes
SHA-256: c52bdc7b72531c5295a8da9ac5d941a4a3d22e625413f3bc16c4bded8e2edc80
font_02_sfnt_off0001119e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1119E 17604 bytes
SHA-256: 8d59a5c94bc675087eccb4ea3395c644b2667a3be091f05f6045fd61157b0f90