Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8ff023b1427c59…

MALICIOUS

PDF

78.4 KB Created: 2022-05-09 13:01:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 1479eccae768d6372fdeec9508937cda SHA-1: 113b43c3602212848c2d2480bca0b00f33a1d253 SHA-256: 5d8ff023b1427c5934f1e7abe6c2209c29c18cc34ae9a88fa5d5829ac59d3906
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://wirut.co.za/YmrXLWy8?keyword=itil%20backout%20plan%20template%20free%20pdf%20format%20printable PDF link annotation
    • http://mehmetrasimmutlu.com/icerik/file/ruvidijomekamabimiveke.pdfIn PDF document text
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1622ceb0358ff9---38307443340.pdfIn PDF document text
    • https://shyuyanchem.com/userfiles/file/3802288872.pdfIn PDF document text
    • https://dodatkireklamowe.pl/web/uploads/files/57005359676.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/34180456794.pdfIn PDF document text
    • http://okayama-kohnan-rc.jp/js/kcfinder/upload/files/56174476294.pdfIn PDF document text
    • http://kunmobile.vn/files/uploaded/20220208/file/27541802114.pdfIn PDF document text
    • https://samngaimarble.com/html_upload/file/niwuxiralalavag.pdfIn PDF document text
    • https://solujasamaro.weebly.com/uploads/1/3/4/6/134695729/d4055dc78.pdfIn PDF document text
    • https://fujelaxu.weebly.com/uploads/1/3/4/7/134704358/badolalogebud_fejipepedipij_buleberabul_dolavuxasuvon.pdfIn PDF document text
    • http://atmosfera.uznature.uz/userfiles/file/78921029751.pdfIn PDF document text
    • https://bnbcostaverde.it/userfiles/file/sagupokaluvakujiko.pdfIn PDF document text
    • http://mitcostruttori.it/userfiles/files/52924060033.pdfIn PDF document text
    • http://phuquytravel.com/nguyenvanlinh/files/vewumujitamevov.pdfIn PDF document text
    • https://crbz.ru/userfiles/file/fatijafunirujoxeji.pdfIn PDF document text
    • https://jadikabejoza.weebly.com/uploads/1/3/2/7/132740193/danoro.pdfIn PDF document text
    • http://nguyenthaotech.com/upload/files/nawajozuxubajizu.pdfIn PDF document text
    • https://sotugenedoximo.weebly.com/uploads/1/3/4/0/134040923/mutugul-jizujesakivo-duzugorava-padodaxudixid.pdfIn PDF document text
    • https://milkywayads.com/webroot/img/files/tirasuxa.pdfIn PDF document text
    • http://lienming-rubber.com/uploads/files/202205082001578211.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_off0000cffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFFB 16316 bytes
SHA-256: e0dfdd58220bb094ea94d8d9afdc291955df16ab2ae211fcd2313fe5286bfd97
font_01_sfnt_off0000fa82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA82 10896 bytes
SHA-256: ec1dedf3fb543489becbca27b916465a1f6a5bd1326710848ce953073ac674cd
font_02_sfnt_off00011376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11376 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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