Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bbcf0dddce3656c…

MALICIOUS

PDF

39.4 KB Created: 2020-08-19 03:01:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46f985d506eac2fc62200602048896c5 SHA-1: 79920efc9a76c49e246b7f665264a6d1f632fd99 SHA-256: 4bbcf0dddce3656c520506b289f9e0cf1bc699c6a845521f79f2173182947854
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.com/pify?keyword=via+ferrata+dolomites+guidebook'. Another critical heuristic identified a PDF link farm, with the first URL pointing to 'https://cdn.shopify.com/s/files/1/0432/7053/7374/files/wolivetepitafeve.pdf'. The document body, though heavily obfuscated, contains references to a guidebook and the redirector URL, suggesting a lure for users to click through to malicious content.

Heuristics 3

  • 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.
  • 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=via+ferrata+dolomites+guidebook
    • http://files.missmatchmakerlive.com/uploads/1/3/0/8/130874231/7718408.pdf
    • https://cdn.shopify.com/s/files/1/0432/7053/7374/files/wolivetepitafeve.pdf
    • https://cdn.shopify.com/s/files/1/0432/2947/9076/files/jukivafedibudatizidupibe.pdf
    • https://cdn.shopify.com/s/files/1/0435/1809/9615/files/79713158737.pdf
    • https://cdn.shopify.com/s/files/1/0435/4952/4127/files/medical_mycology_mcq_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/0367/4785/files/mugururiregarexabosumewu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8072/6168/files/37415127095.pdf
    • https://cdn.shopify.com/s/files/1/0438/1776/2973/files/introduction_to_statistical_data_analysis_with_r.pdf
    • https://cdn.shopify.com/s/files/1/0434/3591/7464/files/rowebufupex.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/robuxisezepisiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/tokipunipifot.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c2d.bin
94506505fb9325a0204801a77510fd0b77804e94153c3e4aff42fbfe93ef334e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C2D 5396 bytes
font_01_sfnt_off00006e74.bin
76d10f32ef19cd9aa841fe438d45ff98d8aa4520bd75befe7468797527223a50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E74 10192 bytes

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