Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ccc51924f6daa2c…

MALICIOUS

PDF

36.4 KB Created: 2020-11-02 06:16:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: cd2238fb18b8b7e5e18f433240af94a8 SHA-1: de71662e7da5691de0b54a5ffee82992dd0d310f SHA-256: 3ccc51924f6daa2cdbf04c964d1c620bd7c0b752883be7e2c9e731630a183b4d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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 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.
  • 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://ttraff.club/123?keyword=bontrager+trip+100+manual In PDF document text
    • https://gebigimudixerez.weebly.com/uploads/1/3/4/3/134374499/968917.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/1st_world_war_history_in_bengali.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/36272269051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9499/3816/files/jupinopevuvewebuzudu.pdfIn PDF document text
    • https://s3.amazonaws.com/sibenuvokiwuz/28806414357.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/speech_banana_asha.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/vomavogibufepen.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/mexanaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8109/7904/files/31600418623.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/fast_furious_7_full_movie_free_watch.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_off00004d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D54 5204 bytes
SHA-256: 8d658f04e22bb0315c30aa9e3b70378d7f0b35e59a1782b82e8e5614a73d1d4b
font_01_sfnt_off00005ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF6 11348 bytes
SHA-256: 033f262989b29c1e8707e3bc68d7a5383c5d7e28e100bff13a7d4744fddefb87

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