Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b8b641a194d99ad…

MALICIOUS

PDF

45.1 KB Created: 2020-08-19 18:49:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 881cddc5c05985e32cc7a5d32025a734 SHA-1: 614ab7ed42176edc15702ea0e545bc20fe00439d SHA-256: 8b8b641a194d99adbd4810277459477bb7380a51d17dcfad1d8d84a0ddc0f142
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=call+of+duty+zombies++ios'. This URL is embedded within the document body, suggesting a lure to trick users into clicking it. The presence of numerous other links, many hosted on shopify.com, indicates a link farm strategy, likely for SEO poisoning or distributing further malicious content. No scripts were extracted from this sample.

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=call+of+duty+zombies++ios
    • http://durereru.infusionbaroque.com/uploads/1/3/2/8/132814930/9840819.pdf
    • http://kudoj.theveggietaste.com/uploads/1/3/0/8/130874493/mikowitaza.pdf
    • http://files.kindnessisfoundation.org/uploads/1/3/2/3/132303269/navegozew.pdf
    • http://files.prestigeservicesleeds.co.uk/uploads/1/3/2/7/132712358/5599d60654e.pdf
    • http://files.bgshuntmechanical.ca/uploads/1/3/1/3/131379054/543415.pdf
    • https://cdn.shopify.com/s/files/1/0429/8086/8255/files/66027271955.pdf
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/56647483787.pdf
    • https://cdn.shopify.com/s/files/1/0435/9412/1379/files/agrostology_books.pdf
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/91151204948.pdf
    • https://cdn.shopify.com/s/files/1/0438/4024/1829/files/26807989439.pdf
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/pavidiletipoje.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdf
    • https://cdn.shopify.com/s/files/1/0429/8883/0873/files/zozupufakulokogo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/definition_of_developmental_psychology.pdf
    • https://cdn.shopify.com/s/files/1/0431/6767/8618/files/el_capitalismo_karl_marx.pdf
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/wumugolerotezuvetudef.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_off00006cd1.bin
532c9ed99a97ac028f39c05e4d7e8887f9b4766cf1ef77c46a8cce2275697414		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD1 5156 bytes
font_01_sfnt_off00007e5d.bin
19c2b4b135385d4c92f5c24de80f19f1823b10ccd28aec31bc56d92755b23662		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5D 12656 bytes

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