Malicious PDF — malware analysis report

Static analysis result for SHA-256 f972e92f69459714…

MALICIOUS

PDF

38.3 KB Created: 2020-08-19 11:15:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73ac5f4c6e439a123c86fc557fb9cced SHA-1: 4d2abe3f7a66b5e9cdb5febc2038893d243508a9 SHA-256: f972e92f69459714106e8b9ef9864e40fbe5e5a6b2a3670e18bc61cd9a47fd9e
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=logo+quiz+level+48+answer'. The document body, though heavily obfuscated, contains references to this URL and a large number of other URLs, many hosted on Shopify, suggesting a link farm or redirection strategy. The primary intent appears to be directing the user to the malicious redirector.

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=logo+quiz+level+48+answer
    • http://nidiz.halepili.com/uploads/1/3/0/7/130775432/1e7c5e1047174.pdf
    • http://vimijozu.stjosephsjuniorschool.com/uploads/1/3/1/4/131438464/b968848bd473795.pdf
    • http://garegaj.signsof.com.au/uploads/1/3/2/3/132303245/kegojusugogoli.pdf
    • http://files.jew-ishbychoice.com/uploads/1/3/1/4/131452942/6668399.pdf
    • http://zebagi.courtneyfowlerperformanceacademy.com/uploads/1/3/0/8/130814017/2f177ea6c9b6.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5004/files/caret_shaped_letter.pdf
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/miravagaxujuvamop.pdf
    • https://cdn.shopify.com/s/files/1/0437/9118/8117/files/dakenikebelajaxa.pdf
    • https://cdn.shopify.com/s/files/1/0435/9582/5320/files/37940091712.pdf
    • https://cdn.shopify.com/s/files/1/0432/2036/9567/files/76050516359.pdf
    • https://cdn.shopify.com/s/files/1/0434/2454/6972/files/person_centred_care_definition.pdf
    • https://cdn.shopify.com/s/files/1/0434/6393/4109/files/6440811412.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/75292215830.pdf
    • https://cdn.shopify.com/s/files/1/0431/8108/0725/files/bismarck_nd_zip_code.pdf
    • https://cdn.shopify.com/s/files/1/0433/6369/6799/files/42087136432.pdf
    • https://cdn.shopify.com/s/files/1/0435/7881/8715/files/32429772107.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_off000056d3.bin
450f6db3cd9fc55d01a1ee7056bcae78f69c913aefbe8950c7506ea12561048b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56D3 5404 bytes
font_01_sfnt_off00006969.bin
01bcb9a6242ba4284e66b81e1ac3963987bd8daeb8546a7201d9b6958dfe7e79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6969 10372 bytes

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