Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87dab838d8d4a06…

MALICIOUS

PDF

427.3 KB Created: 2022-02-07 17:56:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: b5c42e8b7a2a4157fbfa8a92d53d4e90 SHA-1: ce51bcd558aeadee38648e90cc99b0f373d9738a SHA-256: f87dab838d8d4a06814fd77810a831c62592d440c9f10c82171791f7663bbbf3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5880

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://yubit.co.za/XSRYdR1H?utm_term=bizzle+devil%27+s+work PDF link annotation
    • https://next-engineering.com/userfiles/files/juxenukirudolodovezawi.pdfIn PDF document text
    • https://quatcongnghieput.com/uploads/files/dotaben.pdfIn PDF document text
    • https://keepingscore.org/userfiles/file/lipakuna.pdfIn PDF document text
    • https://monamifrance.com/FileData/ckfinder/files/20220103_C1D6A6ED6CCBD2B9.pdfIn PDF document text
    • https://defi128.phpascal.com/userfiles/files/jegimu.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/21792124379.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1618650eb23259---87763792093.pdfIn PDF document text
    • https://rossbeede.com/userfiles/file/26730520195.pdfIn PDF document text
    • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de5053cefab---80117598335.pdfIn PDF document text
    • https://hoakhanh.vn/uploads/image/files/78084217669.pdfIn PDF document text
    • https://cet.sk/res/file/mujepurulibepusi.pdfIn PDF document text
    • http://kompassztuki.pl/Image/files/jatajuduzurilutogilaz.pdfIn PDF document text
    • http://kargo-box.com/uploads/files/sezuxigagikew.pdfIn PDF document text
    • http://cablexconsulting.com/Upload/file/minowafipuz.pdfIn PDF document text
    • https://www.asoriofrio.org/ckfinder/userfiles/files/dodefugateti.pdfIn PDF document text
    • http://salwex.hu/file/1620715313.pdfIn PDF document text
    • http://banquat.com/userfiles/files/25672945448.pdfIn PDF document text
    • http://aguito.madteam.net/ckfinder/userfiles/files/6496042048.pdfIn PDF document text
    • http://blackhorsesc.pl/userfiles/file/90789703855.pdfIn PDF document text
    • https://mygrind.ie/userfiles/file/fozes.pdfIn PDF document text
    • https://www.uflo.edu.ar/ckfinder/archivos/documentos/gerubuwidaf.pdfIn PDF document text
    • http://qunjl.com/userfiles/files/61706658856.pdfIn PDF document text
    • https://www.mnogotrop.com/ckfinder/userfiles/files/lozarebufetiruti.pdfIn PDF document text
    • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/69f4u9gegduc44i0ieisvhous6/votunesowimubowovena.pdfIn PDF document text
    • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/161dbc3352e8fc---xilabixipa.pdfIn PDF document text
    • https://tworaise.com/userfiles/file/27631105115.pdfIn PDF document text
    • http://notariocprietoa.com/notaria/documentos/files/92488021259.pdfIn PDF document text
    • http://www.yevres.fr/ckfinder/userfiles/files/6622700516.pdfIn PDF document text
    • http://logenamerica.com/userfiles/file/62794061101.pdfIn PDF document text
    • http://slbreakingnews.com/ckfinder/userfiles/files/rekikojikulopoka.pdfIn PDF document text
    • http://acrclubinversores.com/files/galeria/files/dinokinupenisuwavabutepew.pdfIn PDF document text
    • http://tral-kerch.ru/userfiles/file/kutososamujixadokun.pdfIn PDF document text
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615cfb547be50---fuwivoletipof.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_off000641f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641F5 10268 bytes
SHA-256: 01db14f59f8615e08b3525e45486972aa02c3f9a4494172d55be96fde0eba448
font_01_sfnt_off00065946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65946 17116 bytes
SHA-256: 796e75ea326de65c503626a4c783223ff513f8a9b8d79f3a649120e4df9019c3
font_02_sfnt_off0006859c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6859C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9