Malicious PDF — malware analysis report

Static analysis result for SHA-256 93a00b342056afad…

MALICIOUS

PDF

38.1 KB Created: 2020-08-22 18:51:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68ed9a762bcaece70d9b5e223c5a8fb4 SHA-1: 6fdfde8129ae54917bfe700d6b1ab05b105c57e6 SHA-256: 93a00b342056afadf761953f3ede26c6018c8dd7b64153ad57079d7aa906b5c1
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, pointing to 'https://ttraff.ru/pify?keyword=bhagavathi+tamil+full+movie++hd'. This URL is likely used to redirect the user to a malicious site. The document also contains a PDF link farm heuristic, indicating it's part of a larger SEO manipulation effort. The embedded URLs and the document body suggest a lure using a movie title to entice clicks.

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=bhagavathi+tamil+full+movie++hd
    • http://files.northwoodshypnosis.com/uploads/1/3/0/8/130874104/4906070.pdf
    • https://cdn.shopify.com/s/files/1/0432/5185/9616/files/31616832892.pdf
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/14250658357.pdf
    • https://cdn.shopify.com/s/files/1/0431/2596/4957/files/jowutarebe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/vubid.pdf
    • https://cdn.shopify.com/s/files/1/0436/9973/2633/files/38609734525.pdf
    • https://cdn.shopify.com/s/files/1/0432/8767/5036/files/logistic_regression_binary_and_multinomial.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/53340504195.pdf
    • https://cdn.shopify.com/s/files/1/0459/8526/7879/files/tanenunikekegeremuriwiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/5037/6100/files/debusulajukaxukurunixozab.pdf
    • https://cdn.shopify.com/s/files/1/0436/9471/9131/files/nowuzobedewowanumakom.pdf
    • https://cdn.shopify.com/s/files/1/0428/1909/2647/files/bernard_rudofsky_architecture_without_architects.pdf
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/wojum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.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_off00005693.bin
392f85be5a9e81cf2bb3ac6d4577597724e139b4f0a3dec22a31d228524401dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5693 5156 bytes
font_01_sfnt_off00006813.bin
a73a84aad00cf6317803371c49ff52592ccb06e04e8f56c2180f2113d6a19bfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6813 10312 bytes

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