Malicious PDF — malware analysis report

Static analysis result for SHA-256 96718ad7cd64a12b…

MALICIOUS

PDF

76.4 KB Created: 2021-09-17 14:29:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 4b0c38f2f2a06b27fd3533dc6ac07784 SHA-1: 2f94e11dcb0d241f21c916100011e4ca538d8ae5 SHA-256: 96718ad7cd64a12b043dd4ad53e2a9fcea5ed3cf73bfc843c8b785c8aee09cb5
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links pointing to various domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://smidgel.ru/uplcv?utm_term=desi+boyz+full+movie+download PDF link annotation
    • http://kccmaul.com/files/files/dasakiramipugolopedebe.pdfIn PDF document text
    • http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/meruzemasanax.pdfIn PDF document text
    • http://darangyi.com/userData/board/file/59034222668.pdfIn PDF document text
    • https://ntct-dz.com/ckfinder/userfiles/files/15253457374.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b6a6a4973---xijozuzital.pdfIn PDF document text
    • http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/fozazeviradebuzujuririf.pdfIn PDF document text
    • https://e-midas.ro/files/file/loniduja.pdfIn PDF document text
    • http://hferrynetworks.com/FileData/ckfinder/files/20210904_F471BA608508526E.pdfIn PDF document text
    • http://www.hermosabeachbungalows.com/userfiles/files/50813092613.pdfIn PDF document text
    • http://terralis.eu/catalogue_dynamique/file/2893963623.pdfIn PDF document text
    • http://willajarmar.pl/userfiles/file/27859864339.pdfIn PDF document text
    • http://cokhitienvuong.com/uploads/files/wulub.pdfIn PDF document text
    • http://kruengrangthai.com/files/files/63459767539.pdfIn PDF document text
    • http://antonellascarpittadesigner.it/userfiles/files/pofesepebaxigozix.pdfIn PDF document text
    • https://almoheetmanpower.com/public_html/userfiles/file/54414667266.pdfIn PDF document text
    • http://bimbrlata.cz/UserFiles/File/35848065821.pdfIn PDF document text
    • http://ramenhajimetustin.com/uploads/files/70538326106.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/48939053180.pdfIn PDF document text
    • http://sacmacbook.net/userfiles/file/soxagavufowowenowisawew.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_off0000c70b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC70B 17012 bytes
SHA-256: 13eaee33cac5e3ffd774c6765d2cc4f0a76d545cd17e83818f1bedac2034a3ec
font_01_sfnt_off0000f33a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33A 10884 bytes
SHA-256: a929cd3b183d72e8dd564b023b616f5e48c6880a306a5ae66265a9c192f01f12
font_02_sfnt_off00010c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C80 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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