Malicious PDF — malware analysis report

Static analysis result for SHA-256 8750359a16ab42f7…

MALICIOUS

PDF

96.8 KB Created: 2021-10-29 00:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: ea42a6fde32139e5336ea392223e0d57 SHA-1: bda1979fd924d22a4d17f77c45d30d89f157a0de SHA-256: 8750359a16ab42f76031332ba8f499d043606a1e68c5ffe96dd8f3fd03a67ccc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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
  • QR business-process phishing lure high SE_QR_BUSINESS_PROCESS_LURE
    Document asks the recipient to scan a QR code in an HR, payroll, compensation, employee-handbook, DocuSign, or business-signature workflow. This is a high-signal quishing/social-engineering pattern even when the QR payload cannot be decoded statically.
  • 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://tyeetomsfishing.com/userfiles/file/94776722231.pdf In PDF document text
    • http://bakineshr.az/ckfinder/userfiles/files/50222407538.pdfIn PDF document text
    • http://norilsk.torbay.ru/images/uploads/file/kobiged.pdfIn PDF document text
    • https://maconlux.ovh/userfiles/files/wezaxunurejabalugiri.pdfIn PDF document text
    • http://gs-metals.com/filespath/files/20211002211935.pdfIn PDF document text
    • http://portaldo.eu/contenuti/upload/file/66954121934.pdfIn PDF document text
    • http://mea-travel.pl/userfiles/file/pegoforikipetejavixam.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147508983435---gaxifotune.pdfIn PDF document text
    • http://ancient-theater.gr/media/file/79603320710.pdfIn PDF document text
    • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/28881886175.pdfIn PDF document text
    • http://vibestedu.com/_UploadFile/Images/file/26509079993.pdfIn PDF document text
    • https://adikmanis.com/contents/files/94117926876.pdfIn PDF document text
    • https://bachson.net/upload/file/jafat.pdfIn PDF document text
    • http://about-dogs.ru/upload/file/4719506430.pdfIn PDF document text
    • http://protraderin.com/userfiles/file/21409298389.pdfIn PDF document text
    • https://tigapilar.com/upload/files/82537665297.pdfIn PDF document text
    • http://mylivediamondinventory.com/uploads/files/86840128253.pdfIn PDF document text
    • http://ibookingkr.com/FileData/ckfinder/files/20210917_9CE54BFDBD8FE5AD.pdfIn PDF document text
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613282da2739a---ponejatojasasusadoven.pdfIn PDF document text
    • http://icbiz.ru/userfiles/file/nemukal.pdfIn PDF document text
    • https://kme.pl/global/app/webroot/uploads/file/16326392048326.pdfIn PDF document text
    • https://datatalk.ilvzhou.com/upload/files/2021/09/202109061831385512.pdfIn PDF document text
    • http://yuhuimachinery.com/d/files/95646747072.pdfIn PDF document text
    • http://smsalumni1971.com/apadmin/uploads/userfiles/files/89345407570.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/tgwjJlsMqHc/uplcv?utm_term=the+catcher+in+the+rye+fb2PDF link annotation
    • 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 (stream_002_off0000f071.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_002_off0000f071.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000f071.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xF071 16244 bytes
SHA-256: 9229bde5e3614c940ebb387a6affb910e6b09cdb82f6b0ab59768fbd23138caf
font_01_sfnt_off00010662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10662 10436 bytes
SHA-256: e98f4437e3e7aff3a0fd3a6b8b4402f3c5f51830cd7bee968ea5b8756ccee53b
font_02_sfnt_off00011e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E13 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00013625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13625 24356 bytes
SHA-256: e6133f86c5a44f6161779794c0d42902a7824f3a497261a16f3ef1fb81de7928