Malicious PDF — malware analysis report

Static analysis result for SHA-256 634a672126eb6382…

MALICIOUS

PDF

80.9 KB Created: 2022-04-05 06:38:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 8449925e81fc59e0f9e6d28affeeb413 SHA-1: 0e6cc95cfa8803a8fe3e472b6ac5338ea34527c9 SHA-256: 634a672126eb63828b3f806a9ec91d1ffb1ba133760192fe8a94ce821590f076
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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 http://dsraxys.com/uploads/87380941542.pdf In PDF document text
    • https://wulukisogexoz.weebly.com/uploads/1/3/1/4/131438059/kujireb_fivapok.pdfIn PDF document text
    • http://casaatlantida.com/userfiles/file///50917849777.pdfIn PDF document text
    • https://vofadifop.weebly.com/uploads/1/3/4/5/134580142/1505188.pdfIn PDF document text
    • https://xasukibumit.weebly.com/uploads/1/3/4/7/134749231/7abcd9d017d.pdfIn PDF document text
    • https://turasmobilya.com/img/editor/image/file/68988084439.pdfIn PDF document text
    • http://www.tamar.org.br/fotos_news/files/27673197640.pdfIn PDF document text
    • https://meesens.be/KrMee/Tekstverwerker/35277982264.pdfIn PDF document text
    • http://cyuanmei.com/userfiles/file/14472712973.pdfIn PDF document text
    • http://ctnphrae.com/ckfinder/userfiles/files/pigesuwa.pdfIn PDF document text
    • http://piscesappliances.com/userfiles/file/62055893595.pdfIn PDF document text
    • http://semidesigns.eu/app/webroot/userupload/files/xexuwotewagopuf.pdfIn PDF document text
    • https://dawifebenunu.weebly.com/uploads/1/3/4/3/134374742/8309419.pdfIn PDF document text
    • https://baoholaodong24.baohohoanglong.com/userfiles/file/4222863863.pdfIn PDF document text
    • https://wunilozufepen.weebly.com/uploads/1/3/4/6/134600637/4611298.pdfIn PDF document text
    • http://samtekelektrik.com/files/8508368227.pdfIn PDF document text
    • http://congluc.com/upload/files/83439270999.pdfIn PDF document text
    • https://zniczekowalczyk.com/user_images/file/zupigezavurom.pdfIn PDF document text
    • https://reytrans.es/kcfinder/upload/files/62232426467.pdfIn PDF document text
    • https://linhancomvn.xelinhan.vn/userfiles/file/daxebafegefinekil.pdfIn PDF document text
    • https://wirut.co.za/YmrXLWy8?keyword=ancient%20egyptian%20symbols%20and%20their%20meaningsPDF 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 (font_00_sfnt_off0000d833.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d833.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD833 11196 bytes
SHA-256: b85357be992f763be0ee5e7490edeb3e921baeb5b53bf1d123f6713e8bab78d1
font_01_sfnt_off0000f1cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CD 16608 bytes
SHA-256: d215ab09c02200cb2e6ac71d604892910b642e90b0819ab68536bf01da49d296
font_02_sfnt_off00011cdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CDD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1