Malicious PDF — malware analysis report

Static analysis result for SHA-256 4874d84d4c71eee3…

MALICIOUS

PDF

73.2 KB Created: 2022-04-07 07:35:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-21
MD5: 4a301388806dcda58737e396d0a746eb SHA-1: 3dd435c2a0f4b93b8801b5b86004fe18dd434dd2 SHA-256: 4874d84d4c71eee3a91097708b2e54dc18471c544b0cf074d4dcb2b15b1c81fe
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://kazamudadi.weebly.com/uploads/1/3/0/7/130775411/f9e1ff.pdf In PDF document text
    • http://andersen-racing.com/pictures/editor/files/18426714821.pdfIn PDF document text
    • https://pexefosakojoma.weebly.com/uploads/1/3/1/4/131406105/b28acf210e3b8e.pdfIn PDF document text
    • https://morupataniseb.weebly.com/uploads/1/3/4/5/134502176/dd8dfca6f.pdfIn PDF document text
    • http://kama-msm.ru/storages/file/46340280363.pdfIn PDF document text
    • https://dixoparogazasa.weebly.com/uploads/1/3/1/8/131871726/fokanenazizube_zubuxamoje_tigeda.pdfIn PDF document text
    • https://giligigava.weebly.com/uploads/1/3/4/4/134494785/9410312.pdfIn PDF document text
    • http://csigikes.hu/admin/fck_upload/file/16793093204.pdfIn PDF document text
    • https://guxafosiwu.weebly.com/uploads/1/3/1/4/131453681/duvuvabu.pdfIn PDF document text
    • https://belavapapase.weebly.com/uploads/1/3/4/4/134444277/9aee99354487.pdfIn PDF document text
    • https://jitogomufe.weebly.com/uploads/1/3/4/5/134588764/bututidaj.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/978e07cd792c52c2e9938a15375fcabd/43255378495.pdfIn PDF document text
    • https://radamokugek.weebly.com/uploads/1/3/2/6/132696621/suwoguvemoli.pdfIn PDF document text
    • https://fijudemi.weebly.com/uploads/1/3/4/4/134400988/faduzegevan.pdfIn PDF document text
    • http://nyitotthaz.hu/userfiles/files/tezezakesajufatinotozutes.pdfIn PDF document text
    • https://baliwiwun.weebly.com/uploads/1/3/1/3/131380001/39952e549.pdfIn PDF document text
    • https://riligasiguvenu.weebly.com/uploads/1/3/5/3/135392009/numopudupu.pdfIn PDF document text
    • https://gafewabonir.weebly.com/uploads/1/3/2/6/132696171/fufivudotixaja_diminofekez_ramepitowepiw.pdfIn PDF document text
    • https://reytrans.es/kcfinder/upload/files/fuvimavojatimexav.pdfIn PDF document text
    • https://rizenorugeworo.weebly.com/uploads/1/3/4/3/134379336/380457.pdfIn PDF document text
    • https://mvmdigital.gr/files/files/6809596791.pdfIn PDF document text
    • https://simbhaolipower.com/images/file/zonis.pdfIn PDF document text
    • https://mifuj.co.za/YmrXLWy8?keyword=can%20i%20download%20fl%20studioPDF 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_off0000bb51.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bb51.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB51 17036 bytes
SHA-256: 1c0195187a9518b05cc3c3f89d197df65669f941393f6e1fed2d788aa430c5c9
font_01_sfnt_off0000e78c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ffa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA3 10332 bytes
SHA-256: 83ac4cbedbd189365663c5b37e6e48c5710001c3de4a1037ca6d77a3c640b826