Malicious PDF — malware analysis report

Static analysis result for SHA-256 683eb6da3a78c0fd…

MALICIOUS

PDF

77.9 KB Created: 2021-09-18 09:08:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 6cc8cc1ae93d3a306b7b97365f807445 SHA-1: fff4c8379148a5b695b004166efe22b675d4cf22 SHA-256: 683eb6da3a78c0fd9972e2eb26a1ba1b3ce0a7b2dee45ea35d362cda64892dd6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://archism.ru/uplcv?utm_term=free+porn+games+download+apk PDF link annotation
    • http://tehpromyar.ru/media/file/29539065073.pdfIn PDF document text
    • http://kechengchem.com/upload/files/rosuvowizame.pdfIn PDF document text
    • http://piotrkowska77.pl/zdjeciafile/lajirirawodoxewofazo.pdfIn PDF document text
    • http://noithatphathuy.com/Images_upload/files/95223042954.pdfIn PDF document text
    • http://linker-apps.com/files/tuwuzetajej.pdfIn PDF document text
    • https://fceresources.com/ckfinder/userfiles/files/bigegemanufovi.pdfIn PDF document text
    • http://vinaktv.com/storage/ckfinder/files/9363640715.pdfIn PDF document text
    • https://makojudo.pl/zdjecia/fck/file/jotoxejemijaxopekumivinu.pdfIn PDF document text
    • http://www.kotolantopeni.cz/files/tepirunega.pdfIn PDF document text
    • https://afritransport.com/app/webroot/files/file/47255629297.pdfIn PDF document text
    • http://tsradviseurs.nl/mailing/images/photo/file/10959647563.pdfIn PDF document text
    • https://tadimtursu.com/image/files/fugefevuzukabomirudufuxum.pdfIn PDF document text
    • https://selapro.com.au/application/third_party/ckfinder/userfiles/files/72765043933.pdfIn PDF document text
    • http://chinalabware.es/d/files/19335713532.pdfIn PDF document text
    • https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/zevenipitagitisaxiwupap.pdfIn PDF document text
    • http://franzoesischebulldoggen.eu/userfiles/file/6628402959.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb499f2fe7---nunoza.pdfIn PDF document text
    • http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/kanid.pdfIn PDF document text
    • http://max-metal.pl/gfx/file/71248926417.pdfIn PDF document text
    • https://feniks9.ru/ckfinder/userfiles/files/dopimupubikaburize.pdfIn PDF document text
    • http://karlsbach.de/userfiles/files/sulubexumotaregu.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_off0000ced0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E2 16812 bytes
SHA-256: 5238323de759d7d44b6386c8f1629906a8b86f1d3b3229eb0eba7e3272c686cf
font_02_sfnt_off00011208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11208 10700 bytes
SHA-256: 67b5da61b4732832fcca8af2274761b6088501c5095507db8a9587a8acace2df

Open this report in the interactive analyzer, or submit your own file for analysis.