Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa870567da4f04c6…

MALICIOUS

PDF

403.5 KB Created: 2022-03-05 22:57:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: f595d334d389af23c95c1c31488f4cd3 SHA-1: e530684eec363d602e0ee3761344993d8cbcb5ec SHA-256: aa870567da4f04c689231ceead243df6ce74d8826fa0d956d95d54a9d0da8f14
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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://tevav.co.za/XSRYdR1H?utm_term=dolphin+emulator+android+apk PDF link annotation
    • http://pollibox.com/assets/uploads/files/72118724518.pdfIn PDF document text
    • http://bep-cong-nghiep.theonejsc.com/userfiles/file/81014580406.pdfIn PDF document text
    • https://pmapmc.com/userfiles/image/files/6415734722.pdfIn PDF document text
    • http://humanprojekt.lenti.hu/feltoltes/files/47832326999.pdfIn PDF document text
    • http://casms.org/atts/news-files/file/gobiwi.pdfIn PDF document text
    • http://gostinica-domodedovo.ru/files/koxegukezuzidij.pdfIn PDF document text
    • http://tiquital.com/documentos/file/3614882603.pdfIn PDF document text
    • https://mama-light.org/business_school/uploads/file/dupanotagogigewopenewo.pdfIn PDF document text
    • https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620938b994a22---tisenixitod.pdfIn PDF document text
    • http://travelci.ru/ckfinder/userfiles/files/dobiwefuzotevuzon.pdfIn PDF document text
    • http://polenes.cl/userfiles/file/35697799987.pdfIn PDF document text
    • https://loyq.ru/admin/upload/photos/library/files/90500070414_1644498402.pdfIn PDF document text
    • http://bamila.vn/luutru/files/54373241641.pdfIn PDF document text
    • https://rtaadmin.mrv-educationservices.com/content_file/files/libazipirib.pdfIn PDF document text
    • http://silexsys.com/ckeditor/kcfinder/upload/files/duwuxixinek.pdfIn PDF document text
    • http://cappellastudio.it/userfiles/files/85617625006.pdfIn PDF document text
    • http://reopen911.info/media/file/50688635407.pdfIn PDF document text
    • https://gencshow.com/upload/ckfinder/files/pibidoz.pdfIn PDF document text
    • http://iphysiology.ru/upload/zumewerus.pdfIn PDF document text
    • https://prizmaemys.com/img/files/lobidesodamoji.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16203ea1741fde---4218250285.pdfIn PDF document text
    • http://norilskgu.ru/userfiles/file/jijowiroteruxiwezunoxife.pdfIn PDF document text
    • https://safetyhanoi.com/userfiles/file/51956057132.pdfIn PDF document text
    • https://phucatgarment.com.vn/ckfinder/userfiles/files/53707453201.pdfIn PDF document text
    • http://fcms.nl/KCFinder/upload/files/2927232813.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/dnonc33q9rb2a9r9e3nm102bh5/5101662833.pdfIn PDF document text
    • http://spzn.narewka.pl/narewkagmina/userfiles/file/kojofutobadexupebeza.pdfIn PDF document text
    • http://hzdsbg.cn/uploadfile/1644193191.pdfIn PDF document text
    • http://longthinhphat.net/uploads/files/xefajilonasebodewitikuta.pdfIn PDF document text
    • http://jakpaisanestate.com/images/upload/files/tujuzirore.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_off0005dca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCA6 10680 bytes
SHA-256: 6474b2b62b6b7f0fc728d1414f7bd68dff0726aae8e514f118d2a14014136002
font_01_sfnt_off0005f4d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4D9 19416 bytes
SHA-256: c8fcf5d4d7b063f08260619e594d199fc3bac58ef03900c00bcbae88d3e30456
font_02_sfnt_off00062754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62754 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9