Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f3e7212615a4de7…

MALICIOUS

PDF

45.9 KB Created: 2020-10-10 18:31:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 901918362a4ee6e7db228ac96e3694b9 SHA-1: e32820485adcbb9277e23ad3dfde6082b59f9788 SHA-256: 6f3e7212615a4de7870318327427a3ce84b1468608add81a14465bde932cff17
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://gettraff.ru/pify?keyword=rogue+one+a+star+wars+story+google+docs In PDF document text
    • https://site-1037145.mozfiles.com/files/1037145/78525816426.pdfIn PDF document text
    • https://site-1037267.mozfiles.com/files/1037267/xavixilekojix.pdfIn PDF document text
    • https://site-1039346.mozfiles.com/files/1039346/minipegateganovomag.pdfIn PDF document text
    • https://site-1036759.mozfiles.com/files/1036759/xadefelojuzeruliwasavusir.pdfIn PDF document text
    • http://gatil.henhouseart.co.uk/uploads/1/3/0/9/130969045/8720791.pdfIn PDF document text
    • https://site-1039140.mozfiles.com/files/1039140/kuritu.pdfIn PDF document text
    • https://site-1037230.mozfiles.com/files/1037230/88633877312.pdfIn PDF document text
    • https://site-1039795.mozfiles.com/files/1039795/29958218464.pdfIn PDF document text
    • https://site-1038970.mozfiles.com/files/1038970/mivowagalewuriza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/eb9d9207-1103-4910-9170-6afa67414b60/sajosoxabifukupesurire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab7aa88a-9d04-414a-ab41-6f6859edafc2/raraneredosizumukixezut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06e18cbf-0535-4187-8bcf-074c55d80833/mexamuzu.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5303 5140 bytes
SHA-256: 96c46c435671236cb6ba877d5527912dbdc1d29aa7a3988f809be7c6c1e1fb29
font_01_sfnt_off000064a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A1 2240 bytes
SHA-256: 50ca125b0d257618552ed7dbde28693f79a27622ef902a95d7f43f51e5adca70
font_02_sfnt_off00006ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBB 14392 bytes
SHA-256: cc399d54e59e4f0925288330b8bdb3895def92deb59933324c2ee7cadd49daca
font_03_sfnt_off00009c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C38 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f