Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccc6435813f53e75…

MALICIOUS

PDF

54.8 KB Created: 2020-08-31 22:10:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 07e9416637eb697094b8a8bbd2722fd0 SHA-1: e381a1be811d4aae9d0a8503bb30d0f318cc09b6 SHA-256: ccc6435813f53e751675f866bfcc815f6db986a80456af380f268851c49e75b6
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO manipulation. One critical heuristic indicates a malicious redirector link to 'ttraff.cc', which is likely the primary malicious payload delivery mechanism. The document body contains invoice-related text, supporting the 'SE_INVOICE_LURE' heuristic.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=inventory+template+html
    • https://cdn.shopify.com/s/files/1/0462/2031/2730/files/le_hC3A9ros_perdu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/classroom_language_flashcards.pdf
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/91056491245.pdf
    • https://cdn.shopify.com/s/files/1/0434/7396/1110/files/pepsico_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1952/files/50946461696.pdf
    • https://static.usrfiles.com/ugd/b8c837_eef65faab57c451da30947b4172d077f.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e013ddffe1141b6ae4e7d874a777881.pdf
    • https://static.usrfiles.com/ugd/db1da1_485eeab3ac7a4f2290cbb423b087d9ce.pdf
    • https://static.usrfiles.com/ugd/01e791_c53d0f0d1fc64790bee7410e53237682.pdf
    • https://static.usrfiles.com/ugd/e7e4a0_1587fa23a839419aae4d5eed8c532a48.pdf
    • https://static.usrfiles.com/ugd/345929_a0e82c50e46c447ebfd124cec735e85d.pdf
    • https://cdn.shopify.com/s/files/1/0433/7287/1832/files/guild_hunter_series_character_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/52800107109.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9277/files/83993553503.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/runomelolelivumuteni.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_off000098e0.bin
dd09093d148f30228f224dc2345acf09249e98e7d01053e8961f3ed615d9fb1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98E0 4980 bytes
font_01_sfnt_off0000a9ac.bin
48291fc1a6b2b6e101d8312df28703d51a8611daf122f98db49dac2e79904301		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9AC 10636 bytes

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