Malicious PDF — malware analysis report

Static analysis result for SHA-256 94180e851a5e41a0…

MALICIOUS

PDF

292.4 KB Created: 2022-02-17 16:43:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 4f84050316adcd6eb8fbb0b804a28068 SHA-1: 63bca70218fd262d567869df2ece116f9c696bab SHA-256: 94180e851a5e41a0124f321ac54a13a4931caded67dd26dbc3e51dd69766668c
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript and a high-confidence heuristic indicates it is a phishing lure for a free download. The primary URL, https://mifuj.co.za/XSRYdR1H?utm_term=ms+word+viewer+2013+free, is associated with SEO redirectors and free-download phishing, strongly suggesting the document's purpose is to trick users into downloading malware. The ML classifier and ClamAV detection further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7171

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=ms+word+viewer+2013+free PDF link annotation
    • http://hiredriver.com/uploads/assets/files/sekovagixudamudexamorati.pdfIn PDF document text
    • http://studiotecnicopinto.it/userfiles/files/69683031419.pdfIn PDF document text
    • http://grubstreet.ca/ckfinder/userfiles/files/sowenoxajivelogen.pdfIn PDF document text
    • https://clinicaalcantara.es/sites/default/files/userfiles/file/31730230824.pdfIn PDF document text
    • http://desirepara.fun4two.pl/uploads/assets/file/wafekite.pdfIn PDF document text
    • https://mariapolis.net/ckfinder/userfiles/files/6849753688.pdfIn PDF document text
    • http://dzbnf.com/upload/file///zulubonuvakure.pdfIn PDF document text
    • https://fablab808.com/nbloom/fckuploads/file/tuwotenebamufosolojol.pdfIn PDF document text
    • https://wroclawmodelshow.pl/ckfinder/userfiles/files/mirorupibewagi.pdfIn PDF document text
    • https://hanomanberjaya.com/contents/files/74012467989.pdfIn PDF document text
    • http://eia-edu.com/userfiles/file/79343643153.pdfIn PDF document text
    • https://schmitz.cz/res/file/7143654464.pdfIn PDF document text
    • http://www.serenissimaservizi.com/files/88599153759.pdfIn PDF document text
    • https://aynadakikemalizm.com/resimler/files/tazirivuvezamilere.pdfIn PDF document text
    • http://safeabortionnepal.com/userfiles/file/kadoxufesesaf.pdfIn PDF document text
    • https://arvikabc.com/images/uploadedimages/file/82513208523.pdfIn PDF document text
    • http://dancephoto.ru/userfiles/files/niteliwuluxixiri.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16186a90439709---10657382260.pdfIn PDF document text
    • http://cobmedia.hu/include/rotofi.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16206d91c1c543---buloralidebenofosozisi.pdfIn PDF document text
    • https://washlounge.in/ckfinder/userfiles/files/42915783856.pdfIn PDF document text
    • http://gemcom.org/userfiles/file/wonupivilobizu.pdfIn PDF document text
    • http://cfboxrx.com/js/kcfinder/upload/files/93909410297.pdfIn PDF document text
    • https://alusol-kw.com/ckfinder/userfiles/files/wuxeporegewejitukunusit.pdfIn PDF document text
    • http://beautystyln.jp/uploads_file/files/50993013772.pdfIn PDF document text
    • https://vibangthuaphatlai.net/uploads/files/87138077302.pdfIn PDF document text
    • http://maxgear.cz/webpagebuilder/ckfinder/userfiles/files/51850387776.pdfIn PDF document text
    • http://wellfoto.cz/pictures/files/dukumebinuxojogid.pdfIn PDF document text
    • http://iuppiteredizioni.it/kcfinder/upload/files/81654899471.pdfIn PDF document text
    • http://cbcom.fr/ressource/site-image/files/dipesefiba.pdfIn PDF document text
    • http://tahokart.ru/userfiles/file/40013221548.pdfIn PDF document text
    • http://rockpapersun.com/upload_mce_image/file/82880640195.pdfIn PDF document text
    • https://qfse.co/images/uploaded_files/ckfinder/files/1635259810_3d60d22a48.pdfIn PDF document text
    • http://desagresbrts.com/clients/34568/File/wimuparusiwuvuse.pdfIn PDF document text
    • http://hoteldanang.vn/uploads/images/files/worumegaposino.pdfIn PDF document text
    • http://affichage-comevents.fr/kcfinder/upload/files/43397986546.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_off000420f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x420F0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00043810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43810 10548 bytes
SHA-256: 0f709be13a56cdce694b17d25b59674a629ed9f363b6daf9bb2f6ad75a8448df
font_02_sfnt_off00045066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45066 18300 bytes
SHA-256: b8bc312084d54aec1f0269caa417a96bbf03286b05b0242f40531255c537cdd8