Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe15666382f98053…

MALICIOUS

PDF

38.0 KB Created: 2020-08-30 03:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84bcaee08174c2cbe25ff24e5da88114 SHA-1: 3ff8a04f0e818bbc4d1ba2f85bb1d096561ee016 SHA-256: fe15666382f980533c0a840fae8e1cdf96d167a0dc3a9a1ba0134111a725223b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=shopkins+game+codes', is designed to lure users with promises of game codes. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, including a potentially benign Shopify link. The primary malicious IOC is the redirector URL.

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.link/wix?keyword=shopkins+game+codes
    • https://static.usrfiles.com/ugd/bb13a2_1a349ff9a4c64a46888ec1580a50ec60.pdf
    • https://static.usrfiles.com/ugd/b0b521_81362f11106e4c93b324402edf356033.pdf
    • https://static.usrfiles.com/ugd/b8c837_3d2309370a324b2c9b9d451de9dedad4.pdf
    • https://static.usrfiles.com/ugd/b8c837_997157d551bc4884a913108b97e2cfbe.pdf
    • https://static.usrfiles.com/ugd/b8c837_7af8bd65cb784c87af0e8e52cf512c72.pdf
    • https://static.usrfiles.com/ugd/ddb60a_e25f5cb4f451439fb38d73f78a0f3596.pdf
    • https://static.usrfiles.com/ugd/99965f_afdb5642a12942c5bf373f47cfa82d61.pdf
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/fuxexalevigapolosimabi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8702/6581/files/srimad_bhagavad_gita_in_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0433/8250/5637/files/xatizuzenimepedalozirix.pdf
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/sogezewemol.pdf
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/masters_personal_statement_example_uk.pdf
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/how_to_swing_trade_for_profit.pdf
    • https://cdn.shopify.com/s/files/1/0431/8868/2915/files/59743225886.pdf
    • https://cdn.shopify.com/s/files/1/0457/3675/5356/files/kufuk.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_off000056b0.bin
51bcfecb8a898a93cc25dfbc6fee561729c7c475b4293aea91336b63ae414f05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B0 5524 bytes
font_01_sfnt_off00006953.bin
dd96964099239f663bde2af2eff663e171763ba88483d015f2401eea8bc95a4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6953 10096 bytes

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