Malicious PDF — malware analysis report

Static analysis result for SHA-256 866ebb9fcead9718…

MALICIOUS

PDF

73.8 KB Created: 2020-08-16 22:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f7da0a5b7e5cbdba1633e447e02b2aa SHA-1: 9ef46421cec045d7e93bb853a8d4b4767610d2c7 SHA-256: 866ebb9fcead9718d81d670e116f7adc5fcfee8ca60399f7d47040e8c9f55175
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=michelin+guide+restaurants+nyc'. Another critical heuristic identified a PDF link farm, with many links hosted on cdn.shopify.com. The document body, though heavily obfuscated, also contains the malicious URL. This indicates a phishing or redirection attempt to a malicious site.

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=michelin+guide+restaurants+nyc
    • http://files.marvinsmarvels.org/uploads/1/3/0/9/130969429/57614.pdf
    • http://files.hungerandthirsttheatre.com/uploads/1/3/2/6/132681452/6667821.pdf
    • http://files.fatherscott.org/uploads/1/3/0/7/130739023/mopoxunijijasi_nazobetumafu.pdf
    • http://files.educationsymposium2019.com/uploads/1/3/1/3/131380759/wiposifotona.pdf
    • http://files.salemuccgilbertpa.com/uploads/1/3/2/6/132681392/2530921.pdf
    • https://cdn.shopify.com/s/files/1/0438/3630/9666/files/discord_text_font.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/bavovekun.pdf
    • https://cdn.shopify.com/s/files/1/0434/7222/4421/files/76808289783.pdf
    • https://cdn.shopify.com/s/files/1/0437/9276/0994/files/30643602171.pdf
    • https://cdn.shopify.com/s/files/1/0430/3310/0439/files/49557497706.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/44854249854.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/17152846292.pdf
    • https://cdn.shopify.com/s/files/1/0437/4223/2725/files/cours_d_agronomie_gnrale.pdf
    • https://cdn.shopify.com/s/files/1/0433/5904/3749/files/zosowakepoluru.pdf
    • https://cdn.shopify.com/s/files/1/0430/6268/9946/files/nazovixikuloduvepel.pdf
    • https://cdn.shopify.com/s/files/1/0436/6984/8217/files/assistant_store_manager_resume_templates.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1095/files/maelstrom_arena_guide_veteran.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/
    • https://cdn.shopify.com/s/files/1/04

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5c9.bin
e99bd1cc46eeaa6ef4c01b1f75cf3f541e5744ab3292f7b5db2012944a37ea10		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C9 5308 bytes
font_01_sfnt_off0000e7d1.bin
500840ee6e2046211f240cd9f44af7274a1a1371f504b70717be3cb7384ba9d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D1 16092 bytes

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