Malicious PDF — malware analysis report

Static analysis result for SHA-256 c68f8562cecf24d8…

MALICIOUS

PDF

33.8 KB Created: 2020-08-17 13:51:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b6988dabe2cea90beba291828a6f39c SHA-1: d21f02f9d9b3be8b5cdf2bf0184d20560382d520 SHA-256: c68f8562cecf24d8470aa0ca51af14be494a025f84e024a4c011ac370be297d2
120 Risk Score

Malware Insights

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

The PDF document contains a deceptive message in Hindi, 'Whatsapp ke video karna hai' (meaning 'Want to make WhatsApp videos'), intended to trick users into clicking a malicious link. The primary malicious URL, 'https://ttraff.cc/pify?keyword=whatsapp+ke+video++karna+hai', is identified as a redirector to potentially harmful content. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious payload.

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.cc/pify?keyword=whatsapp+ke+video++karna+hai
    • http://files.gerrardfineart.com/uploads/1/3/2/7/132740193/8b757f4.pdf
    • https://cdn.shopify.com/s/files/1/0435/8176/7848/files/crack_abbyy_transformer_3._0.pdf
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/justin_bieber_sorry_song_download.pdf
    • https://cdn.shopify.com/s/files/1/0449/8941/5583/files/35141192138.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/88883239446.pdf
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/javascript_programming_language.pdf
    • https://cdn.shopify.com/s/files/1/0437/8483/1125/files/space_engineers_thrust_calculator.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/jobumabamanovedu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/22666987028.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/kuzitup.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/wiperokufakanawikakub.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_off00004846.bin
7162e36c4cbd07b410cd70f8f9fd9fb5e83ecb6b5debca82d02338d71c646c39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4846 5152 bytes
font_01_sfnt_off000059d3.bin
98c97baafec4b6eb5bd31752fc3c12e44e0719144bf64238a8b439065ea8914c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D3 9576 bytes

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