Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f013983bb21bdd…

MALICIOUS

PDF

76.0 KB Created: 2022-02-02 20:07:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 98524b8db069ba8427c868df976a899d SHA-1: e6e93fc1487685e2c434d6ae57513afed913c521 SHA-256: a4f013983bb21bdd406a892ae307f9539f6be54c4bfb6e373bc9b69721ec93f1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9861

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
  • 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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=badlapur+songs+ming.+onl PDF link annotation
    • http://contactfm.be/userfiles/files/59360616033.pdfIn PDF document text
    • http://moveworldtogether.com/datas/files/lelegufusogamuzezajab.pdfIn PDF document text
    • http://nocleginaplus.pl/uploads/userfiles/files/50911638397.pdfIn PDF document text
    • https://magyaringatlanadatbazis.hu/dev/_user/file/wexibumezogorabazo.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16174c16c08034---18826069056.pdfIn PDF document text
    • http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/98527483692.pdfIn PDF document text
    • http://shriramashramps.org/userfiles/file/levolafa.pdfIn PDF document text
    • http://cyklokomfort.cz/files/kcupload/files/talotoxivitiduko.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16178e9c470044---70787366972.pdfIn PDF document text
    • http://futimisdev.com/userfiles/file/65340663145.pdfIn PDF document text
    • http://inventory-acepipe.com/images/uploads/files/27986840780.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/gifafe.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/161b20aa46499b---jiletubafasuroxutukogixa.pdfIn PDF document text
    • https://exihomes.com/userfiles/files/26555583655.pdfIn PDF document text
    • https://fontan-montag.ru/img/upload/webikoxukuralapiwakesiz.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/161985e2f9d7ee---xiboziwukanedovidali.pdfIn PDF document text
    • https://phatgiaolongan.com/upload/ckupload/files/97585116918.pdfIn PDF document text
    • http://coolscape.info/images/files/bodakisum.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/thervq01rja8d81c9hnf88713q/mepufubewisilibumufitap.pdfIn PDF document text
    • https://cdfm.francemonde.news/UserFiles/file/sikoki.pdfIn PDF document text
    • http://mcenterdk.ru/fck_editor_files/files/11991723346.pdfIn PDF document text
    • https://cplastik.com/data/cms/file/fajutobanokijokus.pdfIn PDF document text
    • https://fundacjaartfreeart.pl/userfiles/file/lezosamesuwaf.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e5ddcd11dfe---81519087463.pdfIn PDF document text
    • https://lederstuehle-shop.de/ckfinder/userfiles/files/xizamelemasopeju.pdfIn PDF document text
    • https://sanmuabandoanhnghiep.org/images/content/files/nopogaxa.pdfIn PDF document text
    • https://mobisteelegypt.net/userfiles/file/vapuviletawe.pdfIn PDF document text
    • http://hoya-system.com/uploads/files/202111120058412290.pdfIn PDF document text
    • http://aranykoronakft.hu/userfiles/file/finur.pdfIn PDF document text
    • http://chinastom.ru/userfiles/file/17601840699.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_off0000c5eb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c5eb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5EB 17324 bytes
SHA-256: c1cfde2822f389dff7e544a47911c1375a77e7ae3db055b5c36bf204010f8f15
font_01_sfnt_off0000f28a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28A 10724 bytes
SHA-256: 27943611533bb30022c8cc69a669ecf59571e78f86ff5a0204cb69eb493ae930
font_02_sfnt_off00010adc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ADC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9