Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcaeb71146a49af…

MALICIOUS

PDF

72.9 KB Created: 2021-10-05 23:14:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: ee05008eb6f57b51200d36ff10a10942 SHA-1: d540b1fe6630eb8cb92273132ae8c55381df2c56 SHA-256: 1dcaeb71146a49af558d6dbe1ee5a89d567f96aa2f87733d5fc20944ec308e83
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://infrive.ru/uplcv?utm_term=electronic+numerical+integrator In PDF document text
    • https://hotelangela.hu/userfiles/file/97267033821.pdfIn PDF document text
    • http://studiobardinisrl.com/userfiles/files/29865190356.pdfIn PDF document text
    • https://luatkhangthai.vn/upload/fck/file/6487297674.pdfIn PDF document text
    • http://mackyz7automotive.com/js/upload/files/65406104740.pdfIn PDF document text
    • https://mauspro.net/upload/files/9047733260.pdfIn PDF document text
    • http://saimiri.name/upload/file/nolapigaxireluxi.pdfIn PDF document text
    • http://psychologadamczak.pl/userfiles/file/52557938871.pdfIn PDF document text
    • http://centronegozi.com/public/rewagupagax.pdfIn PDF document text
    • http://vsrru.ru/userfiles/file/9018677752.pdfIn PDF document text
    • http://dtjxbpzx.com/filespath/files/20210920001701.pdfIn PDF document text
    • http://geobigoni.it/userfiles/files/59104045372.pdfIn PDF document text
    • http://mediasingrid.com/js/new/fckeditor/userfiles/file/givovitejuwilewatewawafen.pdfIn PDF document text
    • http://officegate.biz/admin/fck_upload/file/54611739653.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/h91bh36ku45md9hp8vchn50kia/setuzajokamef.pdfIn PDF document text
    • http://psn-monolit.ru/img_file/files/18936069955.pdfIn PDF document text
    • http://2ds-creations.fr/userfiles/file/jabatotadaporaxib.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161481fffa24ce---linezon.pdfIn PDF document text
    • http://otvorene-srdce.sk/userfiles/file/zefezofijux.pdfIn PDF document text
    • http://vngo-cc.vn/cooker/public/files/rutob.pdfIn PDF document text
    • http://ferrocom-spb.ru/userfiles/files/menatofamusaf.pdfIn PDF document text
    • https://ginecologmuresan.ro/ckfinder/userfiles/files/2937136670.pdfIn PDF document text
    • http://indyskischool.com/ckfinder/userfiles/files/88847510389.pdfIn PDF document text
    • https://almuhja.com/ckfinder/userfiles/files/zivasadezigagutep.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_off0000b7f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00B 18060 bytes
SHA-256: 64e721c52a9d8cd92b1687608199134328f0cee24a0818a864c0a96f6ce23844
font_02_sfnt_off0000fe37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE37 10488 bytes
SHA-256: c59f68d7df2802c3da3387df0c075b72c6fc8bcec01503935fd920d5a08f1f8c