Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afa6e91a05099a9…

MALICIOUS

PDF

218.6 KB Created: 2022-04-04 03:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 7c31a011c67c95f674ebce0f493c6e55 SHA-1: 114f81cf6faaeff3ecd3dad5b635425773058ed2 SHA-256: 4afa6e91a05099a90ee750cb52151e0ec258364139847a90d4df6aa1c7bb8dda
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7388

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=trilogy+200+ventilator+clinical+manual PDF link annotation
    • http://superazs.ru/images/news/file/17058134903.pdfIn PDF document text
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16230c2b0b3446---76871355467.pdfIn PDF document text
    • https://tedvandergulik.nl/userimages/file/dakarepuzasibugusixu.pdfIn PDF document text
    • https://todukikezigegu.weebly.com/uploads/1/3/4/3/134359798/6214872a41b9.pdfIn PDF document text
    • https://petribax.nl/userfiles/file/nenumaw.pdfIn PDF document text
    • http://jeanthompson.nl/ckfinder/userfiles/files/rugituperoleki.pdfIn PDF document text
    • http://dogoxuavanay.vn/uploads/files/19021590278.pdfIn PDF document text
    • http://dylogistics.com/userData/board/file/femidaboborobekimeri.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1621db39373e29---gatekukeri.pdfIn PDF document text
    • https://infotechb2blite.com/bot/ckfinder/uf/files/29252923340.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16232c04256d8d---57197712392.pdfIn PDF document text
    • https://boxizegovabore.weebly.com/uploads/1/3/1/3/131379280/3827849.pdfIn PDF document text
    • https://kaptenhoki.org/contents/files/60240406394.pdfIn PDF document text
    • https://zofijakifixanow.weebly.com/uploads/1/3/4/6/134677560/5a844a1.pdfIn PDF document text
    • http://elateridae.com/images/FCKeditor/file/31547838792.pdfIn PDF document text
    • http://gerocuki.hu/user/file/32602449.pdfIn PDF document text
    • http://sinojjacob.com/userfiles/file/wiwolizenulasubixe.pdfIn PDF document text
    • https://tirotoperanape.weebly.com/uploads/1/3/4/3/134315774/futazamafid_xolozisibule.pdfIn PDF document text
    • https://ritefebeg.weebly.com/uploads/1/3/5/3/135316582/571948f6f38320.pdfIn PDF document text
    • http://unicaconsultoriarh.com/images/files/nopaxekatitalusoboxe.pdfIn PDF document text
    • http://gintaras.cz/userfiles/file/damuxovov.pdfIn PDF document text
    • https://menuiserie-sainte-anne.fr/userfiles/file/padebojur.pdfIn PDF document text
    • https://garmin1.ddbseven.cl/userfiles/file/45551257081.pdfIn PDF document text
    • http://longvu.vn/Images_upload/files/bujikijegobijunizubuvisa.pdfIn PDF document text
    • https://wusunipusu.weebly.com/uploads/1/3/4/3/134320006/manadele.pdfIn PDF document text
    • http://sanritsu.mkeduit.com/userfiles/file/xulojixadisari.pdfIn PDF document text
    • https://bixolajulepu.weebly.com/uploads/1/3/4/7/134746591/6380553.pdfIn PDF document text
    • https://suativisamsungtaihanoi.net/upload/files/60013183665.pdfIn PDF document text
    • https://vizumijolotetip.weebly.com/uploads/1/3/5/3/135394273/9090854.pdfIn PDF document text
    • https://fcefrance.com/kcfinder/upload/files/16565259102.pdfIn PDF document text
    • https://kisetizep.weebly.com/uploads/1/3/5/9/135992433/difeno-rizuvupofe-xebazasar.pdfIn PDF document text
    • http://3e3i.com/UserFiles/file///60299416426.pdfIn PDF document text
    • http://bwa.olsztyn.pl/bwa3/admin/kcfinder/upload/files/6377591440.pdfIn PDF document text
    • https://cvsc.co/userfiles/file/90313806924.pdfIn PDF document text
    • https://cualuoihoanmy.com/uploads/userfiles/file/desusepejofibaxala.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_off0002ff8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF8B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0003179d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3179D 16200 bytes
SHA-256: d24042e0444acf3f317dba6dea8f0b8c6aba34a6555e5b974699384b37c3300a
font_02_sfnt_off00034157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34157 10888 bytes
SHA-256: a931a62a19836d061d5a118c00c31abc5f78c3122daa50aaae7c3914507f726d