Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2a0407d188acc5…

MALICIOUS

PDF

79.3 KB Created: 2022-04-15 02:42:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 4f8bf338131436571ce536030faefa1a SHA-1: 566c4a05730d855e5738fce68eba06d77f055877 SHA-256: af2a0407d188acc5f259e88a60ae8af28125b821c39baf34944b2b4b8cf6882a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://norin.co.za/YmrXLWy8?keyword=husqvarna%20chainsaw%20435e%20reviews PDF link annotation
    • http://www.cerradurasytornillos.com/gdc/kcfinder/upload/files/zobelesuweza.pdfIn PDF document text
    • http://nevacomposites.com/public/kcfinder/upload/files/xubazelimotitut.pdfIn PDF document text
    • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/0d7668f8f14d3263237057f61c3cf0bc/kukerosajatawafatixi.pdfIn PDF document text
    • http://areaengineeringsrl.eu/userfiles/files/36258483115.pdfIn PDF document text
    • https://damiel.eu/userfiles/file/nugofarujogid.pdfIn PDF document text
    • https://xosizinunebazen.weebly.com/uploads/1/3/4/0/134017923/gabirulo.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/30a80f9bb3fcf4151f2dd1abcbf2a236/jebojoma.pdfIn PDF document text
    • https://sotemukolewidiv.weebly.com/uploads/1/3/4/6/134660154/bogomid.pdfIn PDF document text
    • https://wejekeviwam.weebly.com/uploads/1/3/4/3/134349932/naxani.pdfIn PDF document text
    • https://astdubai.co/userfiles/files/pibixukoxefug.pdfIn PDF document text
    • https://negamevetafe.weebly.com/uploads/1/3/4/4/134439480/6c9ffb07.pdfIn PDF document text
    • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/31768213625.pdfIn PDF document text
    • https://bifixebuwo.weebly.com/uploads/1/3/0/7/130776276/8461449.pdfIn PDF document text
    • https://meruxanige.weebly.com/uploads/1/3/1/6/131636855/4795783.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623e2bf29000a---7954735501.pdfIn PDF document text
    • http://ylpcl.com/ckfinder/userfiles/files/44614819488.pdfIn PDF document text
    • https://pcstaiwan.com/ckfinder/userfiles/files/xudukadigipopewukozo.pdfIn PDF document text
    • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/16222540431d20---91128765526.pdfIn PDF document text
    • http://twfbs.com/ckfinder/userfiles/files/85122546040.pdfIn PDF document text
    • https://vetaroxavobu.weebly.com/uploads/1/3/4/4/134441067/4980548.pdfIn PDF document text
    • http://xuanfe.com/uploads/FCKeditor/file/kukobawif.pdfIn PDF document text
    • https://torififaw.weebly.com/uploads/1/3/4/6/134690130/c5a0312ee.pdfIn PDF document text
    • https://kawanmto.info/contents/files/tefir.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_off0000d188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD188 16832 bytes
SHA-256: 5121379d886bcf765d36cd0f83b5261d9118b3dc1ba77d716860f5a937ef3103
font_01_sfnt_off0000fd3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD3E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11555 10836 bytes
SHA-256: 855ef2a0d85becc401f3c6cf3bf00e5315fcc4b4adadc7829cbd8670715d394e