Malicious PDF — malware analysis report

Static analysis result for SHA-256 29e69b68305aedf2…

MALICIOUS

PDF

52.2 KB Created: 2020-10-07 08:57:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9c719de214309af078e0a468d2b3cafa SHA-1: ad59da0aa7e125c3e4f1f183d67434209e2ded4b SHA-256: 29e69b68305aedf2973c6974d4375806b8d68268941a0c658e4165ec10bc8131
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=esperanza+rising+epub In PDF document text
    • https://site-1042627.mozfiles.com/files/1042627/20346652452.pdfIn PDF document text
    • https://site-1037274.mozfiles.com/files/1037274/vevaligerejapojowepajo.pdfIn PDF document text
    • https://site-1048559.mozfiles.com/files/1048559/funefuzuxabosarujatuvi.pdfIn PDF document text
    • https://site-1036721.mozfiles.com/files/1036721/fevasedudavuritaguzukera.pdfIn PDF document text
    • https://site-1036722.mozfiles.com/files/1036722/jezogejudoxasoxef.pdfIn PDF document text
    • https://site-1036686.mozfiles.com/files/1036686/99895973973.pdfIn PDF document text
    • https://site-1036646.mozfiles.com/files/1036646/nigutekozugifaxa.pdfIn PDF document text
    • http://files.lady-juju.com/uploads/1/3/1/1/131164419/gukidinokewa-bibiduse.pdfIn PDF document text
    • http://files.forestcityhousing.com/uploads/1/3/0/7/130776578/c5bf5131f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0433/2712/files/totevinuxakuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5601/9109/files/dd_5e_rogue_swashbuckler_multiclass.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000601c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601C 14596 bytes
SHA-256: bf4472835eb50693f8cc4346f5730de896b2a578cc89c11a2f933e706553674b
font_01_sfnt_off00008f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F54 5100 bytes
SHA-256: 020805d7e34dfd60289eb73bdfb505b2b71b1cf62d49d062a184cac7f9a97e77
font_02_sfnt_off0000a0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C3 10384 bytes
SHA-256: 6fbec19e815ecef1ce12752cbcbaf591e44f8a7d50d09f5b967ab318909eda9d