Malicious PDF — malware analysis report

Static analysis result for SHA-256 422e51ae7bf89dfa…

MALICIOUS

PDF

47.0 KB Created: 2020-08-30 18:09:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63b172193c3c5df1e6073cb8d193454f SHA-1: 2e0c4a619f443be39540e56eb78798a97e67da16 SHA-256: 422e51ae7bf89dfa93f9c82b731e72f7079615950f862adb9a6ec358b1695c46
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a specific redirector link to ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, contains text related to movie downloads, suggesting a lure. The presence of numerous links to Shopify PDFs indicates an attempt to blend in with legitimate content while directing users to malicious infrastructure.

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.com/wix?keyword=mp4+movie+hindi+dubbed+hollywood+201
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/46463231282.pdf
    • https://cdn.shopify.com/s/files/1/0431/4349/5841/files/43322160947.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3540/files/free_nkjv_study_bible_app_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0449/5890/8584/files/avenza_maps_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/nesipifagon.pdf
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/61787228312.pdf
    • https://cdn.shopify.com/s/files/1/0452/5637/6480/files/saddleback_basic_english_grammar_book_1_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/wadez.pdf
    • https://cdn.shopify.com/s/files/1/0439/1324/8923/files/77237454183.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3881/files/microsoft_office_2019_mac_preview.pdf
    • https://static.usrfiles.com/ugd/5be868_67f22ca943434e07ad308f91e6926eca.pdf
    • https://static.usrfiles.com/ugd/b42fd6_5ef8fbf7f7a14426a7eec445577c8490.pdf
    • https://static.usrfiles.com/ugd/b56239_ecd69d7f515f46f893eaeddc3d784878.pdf
    • https://static.usrfiles.com/ugd/b8c837_7cc36106e2834259a1f5c8f6c8c4e637.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_off000078bd.bin
4b2a7b784845821eec3bd8d38bae7634d49913c4954dca91a9fe9f8269141f54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78BD 5528 bytes
font_01_sfnt_off00008b90.bin
6c3aed45a03298b6e4585ddfa139b39e96d535d35f352b1267e8838a732fb91e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B90 10316 bytes

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