Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8078c6a5a916d9…

MALICIOUS

PDF

76.1 KB Created: 2022-05-21 06:55:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 34335428e5cfe47c25b4ebd661d445b2 SHA-1: 02b7cc6e1692d64004af8696177309820394b3d2 SHA-256: 2c8078c6a5a916d99c84c59c2df1ca849d47daa492db8e33b603848cae418390
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://colod.co.za/YmrXLWy8?keyword=writing%20algebraic%20expression%20worksheet%20pdf%20download%20full%20pdf%20version PDF link annotation
    • http://protech-t.hu/kcfinder/upload/files/44364905929.pdfIn PDF document text
    • https://sefokuto.weebly.com/uploads/1/3/0/7/130738721/lelidofir.pdfIn PDF document text
    • http://3e-recycling.ru/app/webroot/filesfiles/sorotadegelinifudaniz.pdfIn PDF document text
    • https://dkglobalrecruiters.com/admin/public/ckeditor/upload/files/zimeximerepimufux.pdfIn PDF document text
    • https://lelazasizegaki.weebly.com/uploads/1/3/4/4/134491428/vuxifasuvuvidosejib.pdfIn PDF document text
    • https://mirrorlink.com/public/files/files/37902612273.pdfIn PDF document text
    • https://xupubipimabodot.weebly.com/uploads/1/4/1/4/141422378/9261277.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620ce04f8523e---sedabunefigew.pdfIn PDF document text
    • https://poxejiwexoji.weebly.com/uploads/1/3/4/6/134639112/vokabujutix-mogag.pdfIn PDF document text
    • https://kegozorud.weebly.com/uploads/1/3/0/7/130740561/9178372.pdfIn PDF document text
    • https://pesodubebugi.weebly.com/uploads/1/3/4/2/134234841/949d68a3.pdfIn PDF document text
    • http://propertiesforrent.com/userfiles/file///tigifewubusox.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1622180d076bf3---vixurixig.pdfIn PDF document text
    • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/74b94.pdfIn PDF document text
    • http://messtores.ca/fck_user_files/file/60518542639.pdfIn PDF document text
    • https://sibekusuk.weebly.com/uploads/1/4/1/2/141253160/4789866.pdfIn PDF document text
    • https://nakipoglugroup.com/upload/ckfinder/files/duloguliga.pdfIn PDF document text
    • https://pasationtravellers.com/root/FCKeditor/file/93487615859.pdfIn PDF document text
    • http://streetnn.ru/data/upload/ck/files/gabolevobe.pdfIn PDF document text
    • http://www.rarlaw.net/siteuploads/editorimg/file/36889184437.pdfIn PDF document text
    • https://wovuwujofisup.weebly.com/uploads/1/3/1/8/131856276/9199229.pdfIn PDF document text
    • https://bupiwiwokegiju.weebly.com/uploads/1/3/4/5/134598777/0b9b40d99fdb3.pdfIn PDF document text
    • https://bticino-rozetki.su/kcfinder/upload/files/zemidisugimopidonujinej.pdfIn PDF document text
    • http://kppzp.pl/userfiles/file/31864566347.pdfIn PDF document text
    • http://promerilaclama.com.tr/panel/kcfinder/upload/files/84798748647.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_off0000c256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC256 17016 bytes
SHA-256: 38e64c80ddc4112822a490d43716ecd32c019c959b59ff293624c268179bb8dc
font_01_sfnt_off0000ee88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE88 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001069f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1069F 11480 bytes
SHA-256: 611bcef5ecdde5c250a7a5c4e59bdbfe8950533f11a3e14b8aa8b059a351bdd6