Malicious PDF — malware analysis report

Static analysis result for SHA-256 754822061ba276a0…

MALICIOUS

PDF

33.4 KB Created: 2020-08-23 20:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69b52e9666136b77b8e70fb199b85612 SHA-1: 59085efc7c6664d07303539519cd756eeefd463f SHA-256: 754822061ba276a0dbb5dae36f3a794fcf9a93ae2feb9ffd1462d8162f23fc03
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text referencing 'avery label template 5195 word' and the malicious redirector URL, suggesting a lure to trick users into clicking the link. The primary malicious IOC is the redirector URL, which is used to funnel victims to further malicious content.

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=avery+label+template+5195+word
    • http://files.leehwanxiao.com/uploads/1/3/0/7/130739062/fb36cc0741e6.pdf
    • http://files.bikiniusa.com/uploads/1/3/2/6/132682868/0b6b9b007.pdf
    • http://files.elliottmilesmckinley.com/uploads/1/3/1/3/131383838/siwigojefalubexetoba.pdf
    • http://xeworiv.ethansetiawan.com/uploads/1/3/0/8/130874104/1aa48.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/lomanulatesifesob.pdf
    • https://cdn.shopify.com/s/files/1/0440/7430/3638/files/movie_theater_in_saginaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bofudajix.pdf
    • https://cdn.shopify.com/s/files/1/0428/0742/7238/files/xozodalujalipufofa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8009/7687/files/pelupotiruzadazewaz.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/pewometipajet.pdf
    • https://cdn.shopify.com/s/files/1/0431/8009/7702/files/61769158251.pdf
    • https://cdn.shopify.com/s/files/1/0459/7006/3520/files/search_engine_optimisation.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_off00004318.bin
96f701d7a78ca34a953047e7ff240c763583176f55173913b67d40dfe80655bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4318 5640 bytes
font_01_sfnt_off0000565b.bin
b46d771080b33a1c0c828dd5282ae44966c8d15ed791898a712c7dda0a50f3de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x565B 10228 bytes

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