Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e30778a783c074b…

MALICIOUS

PDF

39.6 KB Created: 2020-08-18 16:43:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84c2b8f822861f49cfa153d76d899f87 SHA-1: 4c7895d4f766117c7818858b26e25ba926c19aff SHA-256: 9e30778a783c074ba25404363bf8e2fa915e7233aa1817bf47ee596a76fabfca
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=java+swing+pdf+report', which is flagged as malicious. This suggests the PDF is designed to redirect users to malicious infrastructure, likely for phishing or malware delivery. The presence of numerous Shopify links, while many are benign, contributes to the link farm characteristic.

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.ru/pify?keyword=java+swing+pdf+report
    • http://files.allaboutlinda.com/uploads/1/3/0/9/130969331/xevedetax_losebominiwax_jezat_tubikonab.pdf
    • http://zubimo.maamedsmukase.com/uploads/1/3/1/4/131454143/fonaguri-vozof-jasumekikana-mumoz.pdf
    • http://files.thyme4lunchcafe.com/uploads/1/3/0/7/130775174/zogamivasija_velusuze_setureniwubi_marap.pdf
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/griffon_corporation_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/3100/2264/files/cadence_orcad_17._2_crack.pdf
    • https://cdn.shopify.com/s/files/1/0437/8725/5960/files/99012582170.pdf
    • https://cdn.shopify.com/s/files/1/0427/4972/2790/files/vuveturifelulu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/golubojofanipijezimowoza.pdf
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/maths_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/8125/2512/files/37270892454.pdf
    • https://cdn.shopify.com/s/files/1/0444/6437/3927/files/project_plan_milestones_and_deliverables_template.pdf
    • https://cdn.shopify.com/s/files/1/0439/7596/6878/files/pagemaker_to.pdf
    • https://cdn.shopify.com/s/files/1/0439/9765/9294/files/disable_hdmi_audio_windows_10.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_off000054a0.bin
548b39cabc9509ddb462fe97abcf4ca23543218cb6581b86fa6c263e6237f1c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54A0 5316 bytes
font_01_sfnt_off000066d8.bin
53b5a533e0ee3533078298cc399aa2d70b9291665d6ca336c1ebccf06a1afe84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D8 13472 bytes

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