Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4fbe0d9aacbb2b4…

MALICIOUS

PDF

33.2 KB Created: 2020-08-30 00:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 741b47e71c8599a6862dcc6860724fa2 SHA-1: fb70e1313de4414c47da5998c222ba4d1938cc36 SHA-256: c4fbe0d9aacbb2b44c591d68bfaf092645595309015a506c13eff3ff0c80d3fc
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.cc/wix?keyword=powered+by+indexu+deluxe', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a coordinated effort to distribute malicious content or manipulate search engine results. No scripts were extracted, limiting the analysis of direct payload execution.

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/wix?keyword=powered+by+indexu+deluxe
    • https://cdn.shopify.com/s/files/1/0438/4600/8982/files/86569684253.pdf
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/revozaperopevuragi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3141/2379/files/99461676623.pdf
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/bibuvalesuxagifoguvak.pdf
    • https://cdn.shopify.com/s/files/1/0432/0703/2990/files/62991430076.pdf
    • https://cdn.shopify.com/s/files/1/0439/5863/2606/files/xovapegodelos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdf
    • https://cdn.shopify.com/s/files/1/0452/1613/7376/files/pogokimirin.pdf
    • https://cdn.shopify.com/s/files/1/0427/5997/9174/files/fenelumanu.pdf
    • https://cdn.shopify.com/s/files/1/0450/8617/9480/files/action_research_in_english_language.pdf
    • https://cdn.shopify.com/s/files/1/0435/6964/3675/files/mikelexezaliwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3866/files/xikojavuwixalusewobunuli.pdf
    • https://cdn.shopify.com/s/files/1/0441/3331/8808/files/serazonojobukajotuxawik.pdf
    • https://static.usrfiles.com/ugd/b8c837_ed579ad385854d5c88d434ac03084648.pdf
    • https://static.usrfiles.com/ugd/b8c837_77c4971fca9f41638db2f3f9bb6d221b.pdf
    • https://static.usrfiles.com/ugd/b52961_6a332405c4b343d08571d4a95f4a5c65.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_off00004650.bin
eacb331aa3da738e7dd3b4a911d6d5bab77c3b23ec5491b1ee8ed483334aeb4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4650 4832 bytes
font_01_sfnt_off000056de.bin
13be50c1edfb80f0ea37ec444ffee63002955d086c73622efade16a71d285d07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56DE 9836 bytes

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