Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dec6b474412c06c…

MALICIOUS

PDF

189.1 KB Created: 2022-03-16 11:29:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 73067cf17e55572dd43014ec89b4cce1 SHA-1: c0517117bbc263e0119549ec2753496cbe56f6f9 SHA-256: 4dec6b474412c06c050de1aaeae35a88f7688fbe42a2fe96b721d25eaa78c4b4
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8078

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
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=shareit+software++for+windows+xp PDF link annotation
    • http://conf.uml2.ru/kcfinder/upload/files/89294371830.pdfIn PDF document text
    • http://dayuntang.com/assets/uploads/ckedit/files/20220307154400.pdfIn PDF document text
    • https://www.jaegeraviation.com/ckfinder/userfiles/files/dalutugofonuxeluda.pdfIn PDF document text
    • https://tdh-europe.org/files/files/miwukipogidosigolofe.pdfIn PDF document text
    • http://agecarekorea.com/ckupload/files/31816165396.pdfIn PDF document text
    • http://allergyc.news-read.com/upload/files/volilejobomebuvesil.pdfIn PDF document text
    • http://www.xtraordinaire.org/web/kcfinder/upload/files/torewubasavi.pdfIn PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/93988775094.pdfIn PDF document text
    • http://atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/subajekarukodelibivarutol.pdfIn PDF document text
    • https://pmeds.us/userfiles/file/14909225852.pdfIn PDF document text
    • https://downtownmakeover.com/admin/kcfinder/upload/files/zifaboj.pdfIn PDF document text
    • http://jurabos.nl/include/editor/file/89295371557.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161fec7dcda56f---12408027904.pdfIn PDF document text
    • http://www.asbea.org.br/assets/plugins/kcfinder/upload/files/pikemukovagix.pdfIn PDF document text
    • http://perila-vrn.ru/userfiles/file/lorivikumaludibesiluf.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621ac4afa6068---juretasisikisir.pdfIn PDF document text
    • http://www.vzwapart.be/upload/files/sonevidubudefopilonupi.pdfIn PDF document text
    • http://honeystraw.getrade.net/uploadfiles/file/vumebufonolarezomolufagex.pdfIn PDF document text
    • http://xn--45-1lchpa.xn--p1ai/files/files/wikubometibudedepiposuw.pdfIn PDF document text
    • http://takramaipai.com/mypicture/file/fivonorisesonirifakoku.pdfIn PDF document text
    • https://www.supergram.cz/kcfinder/upload/files/50992474712.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16212bb3169f34---kidesaselawawililoko.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/4c2d2ed6a67a42eccb712d861aaf2f28/kedupopolezesikekil.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/56345691781.pdfIn PDF document text
    • http://y-mirai.biz/js/kcfinder/upload/files/1653632994.pdfIn PDF document text
    • https://www.irisgroupbd.com/templateEditor/kcfinder/upload/files/bised.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_off00028264.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00028264.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00028264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28264 10812 bytes
SHA-256: 917e0f9b40c173aa8649d1abc684d1bff334ca8a75728af6a5542a729de388cb
font_01_sfnt_off00029b54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29B54 18500 bytes
SHA-256: 9d621055bd3347d37daed9e1368fd0f44bcb3a8c888b04bd831e3bd31b8de4bf
font_02_sfnt_off0002cc71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC71 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9