Malicious PDF — malware analysis report

Static analysis result for SHA-256 dddb0f43aca21ee8…

MALICIOUS

PDF

84.6 KB Created: 2022-04-24 01:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: a0e213eafccd512f432671c2269b1ecb SHA-1: 3a030d83105c277fef4b48036dce47a104d09d07 SHA-256: dddb0f43aca21ee88585b1b863dc661536ffbfc5f841c0ecfd7049b00fa431b9
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://sunuf.co.za/YmrXLWy8?keyword=hx%20stomp%20amp%20models PDF link annotation
    • http://brackenpaving.com/files/34311985558.pdfIn PDF document text
    • http://eepr.cz/upload/files/nenafogupijapikotubanek.pdfIn PDF document text
    • https://gicz.jp/uploads/kc-uploads/tmp/files/11509800441.pdfIn PDF document text
    • https://anciensite.ville-rouillac.fr/docs/file/julutekupuwezanajefexura.pdfIn PDF document text
    • https://temporar.mirceaseminee.ro/printuri-fi/files/22487929525.pdfIn PDF document text
    • http://svaz-podnikani.cz/files/file/54273646703.pdfIn PDF document text
    • http://inter-travel.hu/_user/file/kewuzobuvelabawo.pdfIn PDF document text
    • http://markaz-e-durood.com/EditorImages/file/xupobolujuxuzefevuxij.pdfIn PDF document text
    • http://ckgminaustka.pl/files/files/tutozozemuboroniniv.pdfIn PDF document text
    • https://satuldelut.ro/ckfinder/userfiles/files/57088382685.pdfIn PDF document text
    • http://yaolankungfu.com/kcfinder/upload/files/pudakijufebunexowos.pdfIn PDF document text
    • http://tuning-zone.eu/userfiles/file/denakilapereze.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/84375621848.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1623afe9a3a27e---bazojawuruvufadolom.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/e65415e233849dcf6dd14b398eca04ae/zenowidomakiruluvubog.pdfIn PDF document text
    • https://lescourailleurs.com/upload/editor/file/68400742188.pdfIn PDF document text
    • http://budka39.ru/files/7802410408.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/73663858145.pdfIn PDF document text
    • https://houstoncoinclub.org/FCKeditor/file/xiloredumokatovudan.pdfIn PDF document text
    • https://www.icmcapital.com/assets/ckeditor/kcfinder/upload/files/72530414219.pdfIn PDF document text
    • http://artdealer.vn/upload/fckimagesfile/b670b46b6516849d36a1b0019d012942.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16246316215032---kewigegosi.pdfIn PDF document text
    • https://tes-sys.com/uploads/ckfinder/files/20220413/16498634659068.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 extracted file (font_00_sfnt_off0000e83e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e83e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e83e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83E 10348 bytes
SHA-256: ca316fcd92d4f1b54e8015eff8ec02b7e10c166314280494fb077d2edb1049d2
font_01_sfnt_off0000ffa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA6 17340 bytes
SHA-256: f92f1e209ccfa06788440010fb65da9ea1604b21862b25a6ff0febbf40b4e673
font_02_sfnt_off00012d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D27 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1