Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63afca805d73ea8…

MALICIOUS

PDF

40.9 KB Created: 2020-08-29 22:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a100e535eb874bbca9e4b79ea4580d66 SHA-1: 45f77611f8a5b64aff3e9af82113e21b34f7d5fb SHA-256: e63afca805d73ea84e9a665c96a40ec4ce7b323c0f22b8ee9226838f114aee0d
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=half+marathon+training+schedule+exce'. This indicates the document's primary purpose is to redirect users to a malicious site. Additionally, a PDF link farm heuristic was triggered, suggesting the document is designed to host numerous links, likely for SEO manipulation or to distribute further malicious content. The presence of a visual download button lure reinforces the social engineering aspect of this attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=half+marathon+training+schedule+exce
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/borderlands_2_optional_objectives.pdf
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/crown_vic_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/20670413629.pdf
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/crash_team_racing_ps2.pdf
    • https://static.usrfiles.com/ugd/b65acf_e9d71fcf7d874f0f981e7135d20257cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb1c2cc5fe0c464d98a326934d4d392c.pdf
    • https://static.usrfiles.com/ugd/cafc24_660b6af9616b40f0bbdb60edf36cbf7f.pdf
    • https://static.usrfiles.com/ugd/b8c837_113ebf78a3324752a355d55de411a222.pdf
    • https://static.usrfiles.com/ugd/ecec20_4de1fd6b7d734c92aa1cb565d06a452c.pdf
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/muxekit.pdf
    • https://cdn.shopify.com/s/files/1/0430/7304/4642/files/6960368587.pdf
    • https://cdn.shopify.com/s/files/1/0435/5204/7263/files/free_printable_wedding_border_templates.pdf
    • https://static.usrfiles.com/ugd/b8c837_746d4a949d6e427fb7b7721d2a08138d.pdf
    • https://static.usrfiles.com/ugd/18f527_0eb989d58fb24ba190e471c75fe6d3bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_eb335737a47b4a68aba77d7ba136fa2a.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_off000060bf.bin
753fbd0bfda1251abbe2b2da35b5d4a27a41a28c5e4d4558bfdfaf2e43690a2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x60BF 5464 bytes
font_01_sfnt_off0000732c.bin
f338a325800e670da73d0859ea7feec4bb3fe55753ee2f6b4f3fe540576e37d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x732C 10756 bytes