Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc5f8a2a48683d03…

MALICIOUS

PDF

46.2 KB Created: 2020-08-30 13:06:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62bea9c59028f9f7285ba7f2bed2e48d SHA-1: 05a146c80c95a45dd7bb268b602b6a6154e79af7 SHA-256: fc5f8a2a48683d03055af534f6275a91b55a2915e2a78d27201a6900afb544b0
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised with a keyword related to a game mod. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this behavior. The PDF also contains a large number of external links, as indicated by PDF_SEO_LINK_FARM, which are likely part of a link farm to improve SEO for malicious content. The embedded URL in the document body, 'https://ttraff.cc/wix?keyword=gta+sa+cleo+mod+apk+for+oreo', is the primary indicator of malicious intent, likely serving as a redirector to a malicious payload.

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=gta+sa+cleo+mod+apk+for+oreo
    • https://cdn.shopify.com/s/files/1/0433/1955/8299/files/celestial_warlock_5e_xanathar.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/xobifuze.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/19191375016.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/tepimoxufum.pdf
    • https://cdn.shopify.com/s/files/1/0432/2987/2292/files/formel_ausgleichen_chemie.pdf
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/viwoxamopujezikodetonov.pdf
    • https://cdn.shopify.com/s/files/1/0437/7768/7701/files/53066106633.pdf
    • https://cdn.shopify.com/s/files/1/0432/4294/6728/files/adobe_photoshop_7._0_software.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/fundamentals_of_analytical_chemistry_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0465/0975/2478/files/itunes_para_windows_xp.pdf
    • https://cdn.shopify.com/s/files/1/0431/5611/1520/files/18462215175.pdf
    • https://cdn.shopify.com/s/files/1/0432/9819/3566/files/mivorowinolufagom.pdf
    • https://cdn.shopify.com/s/files/1/0435/1705/1039/files/50318441431.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d9c.bin
73a5957cf41ce569585515d335905c359056a1b690ae958a7ee049d56cc7c2f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9C 5396 bytes
font_01_sfnt_off00006fe9.bin
171a6bd7c985981e3433d5e3e78f24fe14c9cf3ed4731dd8543f6aeab3d20639		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE9 10972 bytes
font_02_sfnt_off00009585.bin
7348a63ea9206f1dd9d85ac5b8e77a4d6d13d552d707fc8209e912c0db264539		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9585 16076 bytes

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