Malicious PDF — malware analysis report

Static analysis result for SHA-256 4457b312606f37ac…

MALICIOUS

PDF

74.6 KB Created: 2022-04-06 07:32:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 3234321a56ea234d4fc68477def3133f SHA-1: 05533c544b1ef934705bf6d2ce3b9df9c228667f SHA-256: 4457b312606f37ac6afb77ddc99709b1ba1263ba6735dd0a232323ea282d76e9
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 8

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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://sunuf.co.za/YmrXLWy8?keyword=soft%20reset%20garmin%20310xt PDF link annotation
    • https://winalefumigis.weebly.com/uploads/1/3/1/4/131437210/4085348.pdfIn PDF document text
    • https://gizojobov.weebly.com/uploads/1/3/4/4/134436228/155345.pdfIn PDF document text
    • https://wabegikabakupoz.weebly.com/uploads/1/3/4/6/134668284/7fac69f4ca77e.pdfIn PDF document text
    • http://anexbd.com/assets/ckeditor/kcfinder/upload/files/safufujepa.pdfIn PDF document text
    • http://meruzhankhachatryan.com/app/webroot/files/file/37625474615.pdfIn PDF document text
    • https://werevofapopaja.weebly.com/uploads/1/3/4/4/134492388/5391508.pdfIn PDF document text
    • https://pupuzufasu.weebly.com/uploads/1/3/4/7/134759867/wisabezaseg.pdfIn PDF document text
    • https://pusurezifokuni.weebly.com/uploads/1/3/4/3/134317864/9628189.pdfIn PDF document text
    • http://www.extoskoko.co.jp/js/kcfinder/upload/files/90213324420.pdfIn PDF document text
    • https://fotapudugibinok.weebly.com/uploads/1/3/4/8/134899903/mebej-tidenudero-ximajeturid.pdfIn PDF document text
    • http://investmedic.com/app/webroot/assets/js/kcfinder/upload/files/mefedigaxoxovonose.pdfIn PDF document text
    • https://angkorphotographyguide.com/userfiles/file/14692364279.pdfIn PDF document text
    • http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/lemolenebeteve.pdfIn PDF document text
    • https://jofusowosa.weebly.com/uploads/1/3/4/7/134764533/tazosufixad_pexezozevedob_gatefujakenuli_rexax.pdfIn PDF document text
    • https://solakozejifu.weebly.com/uploads/1/3/5/3/135347449/1182899.pdfIn PDF document text
    • https://sharjahcements.com/images/bulk_images/files/mokeliguwirizowador.pdfIn PDF document text
    • https://mumilupoj.weebly.com/uploads/1/3/5/3/135351188/rilabole.pdfIn PDF document text
    • https://boxoxezerutevok.weebly.com/uploads/1/3/4/3/134317212/7722586.pdfIn PDF document text
    • https://visepawil.weebly.com/uploads/1/3/0/7/130776118/9dfcf6.pdfIn PDF document text
    • https://kefodepipa.weebly.com/uploads/1/3/4/6/134662477/rilixanabavuwu.pdfIn PDF document text
    • http://phunggia.biz/userfiles/file/fubobirirete.pdfIn PDF document text
    • https://jovuximunises.weebly.com/uploads/1/3/0/8/130814448/3392017.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/59018b17ffe4f17de479cc27cfc7a95d/57003362718.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_off0000bd01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD01 17564 bytes
SHA-256: 52068bee2a8bea50741321b2f6aad12d7129e0296514b16fc937a20e7c8fb2f2
font_01_sfnt_off0000eb82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB82 11036 bytes
SHA-256: 717ad3127a2c4541e87cbbedae331719163497ff498480c33e1580bc67d6426c
font_02_sfnt_off00010546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10546 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1