Malicious PDF — malware analysis report

Static analysis result for SHA-256 5312ba7e7bf2359e…

MALICIOUS

PDF

42.2 KB Created: 2020-08-31 05:53:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 487c543769e69f511f299634d11e76da SHA-1: 521481301a95757038c46abfcd38c0b39e5077f4 SHA-256: 5312ba7e7bf2359e4b3e6c377d0903e4a4c2f6e3ca301b7e5c58fcf150c477c9
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL 'https://ttraff.ru/wix?keyword=dark+souls+uchigatana+vs+iaito' is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. No scripts were extracted, but the presence of a malicious URL is sufficient to indicate a likely phishing or malware distribution attempt.

Heuristics 2

  • 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.
  • 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/wix?keyword=dark+souls+uchigatana+vs+iaito
    • https://cdn.shopify.com/s/files/1/0430/6157/5834/files/big_blue_book_of_bicycle_repair_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0440/1453/4806/files/let_s_go_pikachu_game_informer_review.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/longman_essential_idioms_in_english.pdf
    • https://static.usrfiles.com/ugd/625844_5e35aa61cfeb4ed298f84d1d3fc0cffa.pdf
    • https://cdn.shopify.com/s/files/1/0462/3302/6709/files/que_es_anemia_hemolitica.pdf
    • https://cdn.shopify.com/s/files/1/0465/3193/6414/files/wukefaxatuvofunis.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/11261987678.pdf
    • https://static.usrfiles.com/ugd/c20ea7_6ba947b05f6444198a91a659dcc3f89d.pdf
    • https://static.usrfiles.com/ugd/c3f88d_90f359b0dcd94be89b47d2797a1385e8.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_off0000669d.bin
a8966b998b606b402bb65517ddde746986a39ef9b07cef551d2ee740f89c1a98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x669D 5184 bytes
font_01_sfnt_off00007845.bin
cf78d71422f268091769c48702b2c03f87daf33ccb38e1ce45f7e9b8ceeba670		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7845 10656 bytes

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