Malicious PDF — malware analysis report

Static analysis result for SHA-256 6905f22748d58840…

MALICIOUS

PDF

65.6 KB Created: 2020-08-18 14:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2d761087a280dbd5ee8fe8244ecbdba3 SHA-1: 486928c07d5eaffa189f105b17aff825f0fd27b7 SHA-256: 6905f22748d58840816840c0ebb2e80196c53f09675087a3d9901a5ff9908083
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded links, including one pointing to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains references to the same malicious URL, suggesting an attempt to direct users to malicious content. The presence of multiple external PDF links also indicates a link farm, a common tactic for SEO manipulation and traffic redirection.

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.com/pify?keyword=fortin+barometer+pdf
    • http://milenez.stjosephsglenealy.com/uploads/1/3/1/3/131379641/6832773.pdf
    • http://files.tgbtgsports.com/uploads/1/3/2/6/132681352/8214905.pdf
    • http://files.chimtechllc.com/uploads/1/3/1/3/131397973/bimexos.pdf
    • http://files.stayingsharpasasenior.com/uploads/1/3/0/7/130738569/526440.pdf
    • http://files.gretchenjude.com/uploads/1/3/0/7/130739510/lawikeluvige-vijipafigu-sazelax.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdf
    • https://cdn.shopify.com/s/files/1/0434/4738/6264/files/37665659616.pdf
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/carbomastic_15_lt_data_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/nikolivemegotazubifet.pdf
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/welcome_email_template_examples.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/jureganuvejodudoxebuwo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/komobosam.pdf
    • https://cdn.shopify.com/s/files/1/0435/5099/8679/files/skf_bearing_general_catalogue_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0658/files/niwefexunadujavopugujufa.pdf
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/mandatory_reporting_training_sa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af7b.bin
8a59a4ec03a27885de7e909c70ee3202cdc10288a8b7f211abdb8deab94fa03c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF7B 4860 bytes
font_01_sfnt_off0000bfd9.bin
1885db205fdcd9e4f2515e7aecf8992ca3f261601e50bf29cd4e5a011a2c5cb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD9 13620 bytes
font_02_sfnt_off0000eb7b.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB7B 4324 bytes

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