Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec425fbbc0e8ccc4…

MALICIOUS

PDF

40.4 KB Created: 2020-08-20 01:07:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 718c5cdba347ad706aa328510cd87b52 SHA-1: 6e38a18bab8fdac128382912173a2c9596360cdc SHA-256: ec425fbbc0e8ccc4f97be4be1e3aad43eecbba52880c7102b0f06778f28ab072
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=bahubali+2+free++telugu'. This URL is likely used to redirect the user to a malicious site. The document body also contains this URL and numerous other links, many hosted on shopify.com, suggesting a link farm or SEO poisoning attempt to drive traffic to the malicious redirector. The presence of a malicious redirector link indicates an attempt to lure users into a phishing or malware download scenario.

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=bahubali+2+free++telugu
    • http://files.danielledesnoyersphotography.com/uploads/1/3/0/7/130776111/fesokekolakasejow.pdf
    • http://files.artworkmq.com/uploads/1/3/1/8/131856919/5901473.pdf
    • http://punaburi.nurismailphotography.com/uploads/1/3/1/4/131437423/2297c59ca92f01.pdf
    • http://files.anniegoesjack.com/uploads/1/3/1/6/131606069/sijimuf-sudumigonebolom-fedetadewodulun-nixujojanewex.pdf
    • https://cdn.shopify.com/s/files/1/0457/5248/3996/files/65169256911.pdf
    • https://cdn.shopify.com/s/files/1/0434/0590/1991/files/68758963922.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdf
    • https://cdn.shopify.com/s/files/1/0435/4267/5608/files/86239909376.pdf
    • https://cdn.shopify.com/s/files/1/0443/8137/2582/files/simple_present_affirmative_form_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/0058/5632/files/86077715005.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8236/files/chatting_application_based_on_android_bluetooth.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/check_plagiarism_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/6454647074.pdf
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/widapofeguk.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_off0000616d.bin
1e6612618e194c28189bf1e1d50ea7df713640f256ef9d757ad63088a9578df8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x616D 5172 bytes
font_01_sfnt_off00007305.bin
4f22f9696cfd595259767ce596ece4659bcfb8a24b83bbd5b785e13a9c3e2cd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7305 10012 bytes

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