Malicious PDF — malware analysis report

Static analysis result for SHA-256 9080b795461dd706…

MALICIOUS

PDF

42.6 KB Created: 2020-10-05 11:58:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 232b7397e48a996f50036ef80a5a1459 SHA-1: fccdef37efcc46066df66ecd12959486c9a5c44b SHA-256: 9080b795461dd706156f0a6ddfab7b7548272afc42ee951012a4a00105d0011d
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/strik?keyword=le+bossu+roman In PDF document text
    • http://files.fancycanary.com/uploads/1/3/0/7/130740221/1730308.pdfIn PDF document text
    • http://lobol.sheeptales.org/uploads/1/3/0/7/130739430/burafepe_punafafib_ganuxadubovuro.pdfIn PDF document text
    • http://zoguman.oddlogicbrewing.com/uploads/1/3/0/7/130738623/kuvufukigejaz.pdfIn PDF document text
    • http://files.minniefairytales.com/uploads/1/3/0/7/130738553/dinezus.pdfIn PDF document text
    • http://moziviziv.tosharollins.com/uploads/1/3/0/8/130874284/zirenujuwafiwe_novake_goturituruzabo.pdfIn PDF document text
    • http://files.blueboybakerywi.com/uploads/1/3/1/3/131398135/1900900.pdfIn PDF document text
    • https://site-1038776.mozfiles.com/files/1038776/daduxemeriguxuxerijolewa.pdfIn PDF document text
    • https://site-1040668.mozfiles.com/files/1040668/77055603289.pdfIn PDF document text
    • https://site-1043664.mozfiles.com/files/1043664/tugolokupadepunebu.pdfIn PDF document text
    • https://site-1042347.mozfiles.com/files/1042347/dakabarep.pdfIn PDF document text
    • https://site-1036748.mozfiles.com/files/1036748/lopajefikog.pdfIn PDF document text
    • https://site-1036818.mozfiles.com/files/1036818/pedazemagojaxaxaja.pdfIn PDF document text
    • https://site-1040888.mozfiles.com/files/1040888/vijajer.pdfIn PDF document text
    • https://site-1043260.mozfiles.com/files/1043260/84480839576.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000671d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671D 4880 bytes
SHA-256: 78c010420818312efeac3be5c5410dbe5bd9c545355774fbe3aa480114da0351
font_01_sfnt_off00007799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7799 11932 bytes
SHA-256: 536f427a067fd6c534aef385c5b4f57a5b098124326eb32f4209726cdab48075

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