Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b103c3d67d0441…

MALICIOUS

PDF

133.9 KB Created: 2022-03-30 04:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: ce99ba514549f298800abf4cd3633193 SHA-1: f2c1b032aac049dd7b7a28a463777f971543928f SHA-256: 88b103c3d67d0441669cae38259a1b4f04bdc3b0f05c84bb5321930d72e1fb10
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9686

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.
  • 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://podar.co.za/XSRYdR1H?utm_term=zayn+malik+mp3+song+download+pagalworld PDF link annotation
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161f9cbfca50c8---wepotarenonuwipifetetog.pdfIn PDF document text
    • http://www.childofafrica.org/media/userfiles/file/73261859036.pdfIn PDF document text
    • https://jibeguviju.weebly.com/uploads/1/3/4/7/134723477/2361572.pdfIn PDF document text
    • https://ratipiju.weebly.com/uploads/1/3/0/7/130740089/jarekixiwatofi.pdfIn PDF document text
    • https://tatasabazenaxaj.weebly.com/uploads/1/3/2/6/132695883/8754978.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1620359d3b7162---nonibosaregudufalokiboke.pdfIn PDF document text
    • http://lagostena.it/userfiles/files/65735349554.pdfIn PDF document text
    • https://balatonpremiumvillas.hu/webroot/upload/files/soxibakofejogijixo.pdfIn PDF document text
    • http://vibrobeton.by/pics/files/26728431748.pdfIn PDF document text
    • https://dom4m.de/userfiles/files/23359180267.pdfIn PDF document text
    • https://sozububi.weebly.com/uploads/1/3/4/4/134459052/rowimure.pdfIn PDF document text
    • https://nofixemi.weebly.com/uploads/1/3/6/0/136082439/ec04c37f72b149.pdfIn PDF document text
    • http://www.og2c.com/images/file/basep.pdfIn PDF document text
    • http://kidilangues.fr/js/kcfinder/upload/files/kamovufino.pdfIn PDF document text
    • http://thesnowmanicecream.com/ckfinder/userfiles/files/86620230230.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/i5h01h5i852buhtqkh0552chq0/wuzurilisavu.pdfIn PDF document text
    • https://www.kidilangues.fr/js/kcfinder/upload/files/30331731798.pdfIn PDF document text
    • http://spartaksedlec.cz/spartaksedlec/userfiles/file/56606684432.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/875560110.pdfIn PDF document text
    • http://dekobonner.de/userfiles/file/vapojutomojuxivodiwum.pdfIn PDF document text
    • https://voresefum.weebly.com/uploads/1/3/0/8/130813922/8543182.pdfIn PDF document text
    • https://juzugimigiroteg.weebly.com/uploads/1/3/2/3/132302883/polemalixipunebipun.pdfIn PDF document text
    • http://tachikawa-derma.biz/ckfinder/userfiles/files/27297891619.pdfIn PDF document text
    • https://jifujutikawe.weebly.com/uploads/1/3/5/3/135328504/164ea26a510dcf.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_off0001aaa5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001aaa5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001aaa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AAA5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0001c1c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C1C5 10932 bytes
SHA-256: 80f2dc8fdbee4880731cdf750773fc60cfb72663dc0a2e2f35bf1ffc17e69581
font_02_sfnt_off0001dae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DAE2 17680 bytes
SHA-256: 450d573a109f404c6e7df41527a007a47d431838cffc67f362bd87fc4b24205a