Malicious PDF — malware analysis report

Static analysis result for SHA-256 514a7ba39b1a81e0…

MALICIOUS

PDF

212.8 KB Created: 2020-08-15 02:10:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 20f802b985ad7fd3583d174b595d8d90 SHA-1: 329f3e42ca235649c699867b475b2b6799d8b3f6 SHA-256: 514a7ba39b1a81e0ba983d10f39ab7ecb056fa0817743d331dd2503ec4c54354
70 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL and mentions 'antiphospholipid syndrome nice guidelines', suggesting a lure to trick users into clicking the link. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the malicious nature of the embedded URL.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=antiphospholipid+syndrome+nice+guidelines
    • http://rinukon.bradfordcattledogs.com/uploads/1/3/0/8/130814328/574cfa4288e5e7.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdf
    • https://cdn.shopify.com/s/files/1/0433/6143/5813/files/wakakulogemo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8999/2605/files/nunapazigabepifisusoved.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/present_perfect_or_past_simple_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/4432/9877/files/simple_present_tense_lesson_plan.pdf
    • https://cdn.shopify.com/s/files/1/0431/3684/3933/files/aql_sampling_plan_table.pdf
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/lofusinorefirav.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/2000/files/mpge_4_converter.pdf
    • https://cdn.shopify.com/s/files/1/0429/6913/7305/files/nanuxesegufiradebisuwi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0118/3397/files/mercedes_benz_g_class_2020.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/86694166843.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002e83e.bin
843265d0b5609ce5bb784be589772136e7acd864170009c4837d22fad072a5aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E83E 5368 bytes
font_01_sfnt_off0002fa5a.bin
42c13d59f1f8fc3b6d43729e61ea233e7fde82197791e560576e6594b436277e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA5A 17164 bytes
font_02_sfnt_off00032f72.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32F72 16204 bytes

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