Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61b0b4c7b2fd6e1…

MALICIOUS

PDF

89.4 KB Created: 2021-07-04 17:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 8cc7f6c0617e9a86441ea4e92b3e4823 SHA-1: ebc44ec4ff36ff37cf6448639c48999c4ab78df9 SHA-256: b61b0b4c7b2fd6e182d8127389ebb50a5d2e532627267649f69acda226f5ec74
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160886bfb9466f---fagirezofukuxupevuxogoki.pdf In PDF document text
    • http://wang023spa.com/userfiles/202106file/2021062707114470554.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a05374dca16910ad202ae5385fe9b974/pazazotigurazuxo.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2a0f8be0b7---2422649060.pdfIn PDF document text
    • http://systemsbiology.at/uploads/assets/file/18855140849.pdfIn PDF document text
    • http://wallsfamily1912.com/clients/876683/File/13638371883.pdfIn PDF document text
    • http://rasmesafar.net/basefile/basefiles/38483686982.pdfIn PDF document text
    • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073d6e1f0c54---xulug.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609baad55a1ca---pebanubovevemu.pdfIn PDF document text
    • https://emmaushuis.org/pages/zukemanojibujusugot.pdfIn PDF document text
    • http://dianacb.cz/userfiles/file/rewenilepuxopinezo.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1606fbaf3053ca---gibiguzibekutad.pdfIn PDF document text
    • http://amandatour.ru/js/ckfinder/userfiles/files/gexubajop.pdfIn PDF document text
    • http://greenld.com/userfiles/zobazovapugijus.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/71e22db762d96da99a2cc6cc587d9368/fulefenunamesuzumozerin.pdfIn PDF document text
    • https://dialogueinpraxis.net/files/docs/jerovuxaxawavewonazalog.pdfIn PDF document text
    • http://lungshingcentre.com/userfiles/refapufapusimu.pdfIn PDF document text
    • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16080331799fba---fisofedibobumob.pdfIn PDF document text
    • http://cropscipublisher.com/files/upfiles/file/fubilixagogivesaduti.pdfIn PDF document text
    • http://solarhomepage.ch/fckeditor/editor/images/file/24373307693.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f08f819b1---2545147710.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/f2g81smll6b9oavsphqgvr5g11/subonubewikusovi.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c88562380f0---90250665998.pdfIn PDF document text
    • http://reikihaus.com/clients/75291/File/67889472926.pdfIn PDF document text
    • https://catamma.ru/uplcv?utm_term=powerpoint+change+language+for+whole+presentationPDF link annotation
    • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/44ce5594ea7f1dbed53cbb20590954c3/fituwujobobijut.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_off0000f8be.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f8be.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BE 10944 bytes
SHA-256: 7356aca822a354fbb53ada4a06b5b097d78c442d2cc34b899be62de67e08167f
font_01_sfnt_off0001121f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1121F 16880 bytes
SHA-256: 187a5a2413078732c67d420439029364becbce625b0944adde487c13941f9ad2
font_02_sfnt_off00013e44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E44 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1