Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66eb2064faed455…

MALICIOUS

PDF

41.2 KB Created: 2020-08-04 13:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b3494891dd0494ef6066d07f3204566 SHA-1: 7933efb0483150272d299afb0a7af6f552458d67 SHA-256: d66eb2064faed455d639b8d8000cf80bcd095422b4671d42ccc3b1ba58fbd80b
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'The Legend of Zelda: Ocarina of Time walkthrough PDF' and the URL https://ttraff.ru/pify?keyword=the+legend+of+zelda+ocarina+of+time+walkthrough+pdf, suggesting a lure to a malicious site. The presence of a link farm further supports the malicious intent.

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=the+legend+of+zelda+ocarina+of+time+walkthrough+pdf
    • http://files.lindamarionartworks.com/uploads/1/3/1/8/131856205/c9f8b0c1b.pdf
    • http://files.thegfsc.com/uploads/1/3/0/9/130968988/subalelenizo.pdf
    • http://files.chamedicals.com/uploads/1/3/2/8/132815924/buxazu.pdf
    • http://files.jharmonysalon.co.uk/uploads/1/3/1/8/131871633/192c8.pdf
    • https://cdn.shopify.com/s/files/1/0431/9051/7911/files/best_tablet_reader_for.pdf
    • https://cdn.shopify.com/s/files/1/0438/5341/4565/files/bepurepamoxotopetem.pdf
    • https://cdn.shopify.com/s/files/1/0438/1189/7504/files/78706418134.pdf
    • https://cdn.shopify.com/s/files/1/0435/7029/9038/files/sazifexawapamodepav.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/jilaxovazigena.pdf
    • https://cdn.shopify.com/s/files/1/0432/7207/7475/files/427139575.pdf
    • https://cdn.shopify.com/s/files/1/0435/8055/5419/files/sugefaranuripofus.pdf
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/sasifuwamadoginunonu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/34857068248.pdf
    • https://cdn.shopify.com/s/files/1/0434/1311/0951/files/bomugim.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88020392138.pdf
    • https://cdn.shopify.com/s/files/1/0432/0516/5216/files/tukedugelato.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_off0000615a.bin
da4b8f1e9fafa14e2ae8c314165c826e23214f14b70f044834f6a6c1521b7349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x615A 5544 bytes
font_01_sfnt_off00007432.bin
c213be531ef55ec00373f6bccc0307b20c81d784fe73cea066c65e6a411c6ee3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7432 10396 bytes

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