Malicious PDF — malware analysis report

Static analysis result for SHA-256 6739a943023e49c2…

MALICIOUS

PDF

35.9 KB Created: 2020-10-07 22:50:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bb98808c64ff380393c5246c083b4168 SHA-1: bc5009de8e8d73eb820f114b694e4be9ad8ed0f5 SHA-256: 6739a943023e49c2039ddda88da8c371e52076a6195c839927bf281fb18523ea
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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://ggtraff.ru/strik?keyword=pioneer+qxe1047+manual In PDF document text
    • https://site-1037138.mozfiles.com/files/1037138/62383748421.pdfIn PDF document text
    • https://site-1037899.mozfiles.com/files/1037899/patelurajaragosikav.pdfIn PDF document text
    • https://site-1036938.mozfiles.com/files/1036938/91000903037.pdfIn PDF document text
    • http://zivefupo.thecindybportfolio.com/uploads/1/3/1/4/131453698/e5519e9e48.pdfIn PDF document text
    • http://files.unimacanada.com/uploads/1/3/1/6/131606878/bisovadamuzox.pdfIn PDF document text
    • http://files.excellenceworks.com/uploads/1/3/0/8/130874566/5713507.pdfIn PDF document text
    • http://nataxu.lizadimbleby.com/uploads/1/3/1/1/131164250/lebovivud_dopeg_tawulufegifimo.pdfIn PDF document text
    • http://files.chensbadmintonclub.com/uploads/1/3/0/9/130969442/xemekijin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4a55296-e4ff-445f-ad1c-40c8c1ff09c8/88477689527.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69756bb3-6b71-4885-94c6-dd13b93ab346/lojuxuzuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f3295ce-5713-4fae-ab7f-84f26a124961/domipomazonosad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0506/5890/files/system_of_equations_inequalities_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0382/6335/files/49135509471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/9360/1693/files/40298891158.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E76 5212 bytes
SHA-256: f7c6d956f5f89eee5c9f0ba854b89de8ad801126f9b46d5e2b74fc0cc2ed159d
font_01_sfnt_off00006030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6030 10240 bytes
SHA-256: f1db06f39677e8539eae046e9edfc73827d23183ec99486fe993b23f0ae83f70

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