Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae78b43358f00943…

MALICIOUS

PDF

132.7 KB Created: 2020-08-30 18:28:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 707cd27654862845ff7ea924cdab2548 SHA-1: 2752d1221f4cc266fc8a6feb51d3b922de358eff SHA-256: ae78b43358f009430a712e85aeec7dd8826ae9ce7b599eb075564551a29774f7
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it's a malicious redirector link, pointing to 'ttraff.cc'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. The presence of a 'download button' lure further supports the attack pattern of tricking users into clicking malicious links.

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=eugene+schwartz+breakthrough+adverti
    • https://cdn.shopify.com/s/files/1/0430/6881/7569/files/72285514672.pdf
    • https://cdn.shopify.com/s/files/1/0447/2481/3977/files/no_man_s_sky_thermic_condensate.pdf
    • https://cdn.shopify.com/s/files/1/0430/7058/7029/files/ranilixixeboliwogoje.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/31246086133.pdf
    • https://static.usrfiles.com/ugd/7e6083_6619ea3f4fc54111b2a94c1873bd32b8.pdf
    • https://static.usrfiles.com/ugd/bfbc46_da3cb7af785a47f389f58730eabf073a.pdf
    • https://static.usrfiles.com/ugd/dad90e_015ec76b7453437d8418e15fe0f95a52.pdf
    • https://static.usrfiles.com/ugd/b8c837_4e7b5ca34de4477683cca469eae79e17.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e66fdcf727c4596b36f7747d3006f46.pdf
    • https://static.usrfiles.com/ugd/b8c837_626a42b00ac241278c55a1596d4feacd.pdf
    • https://cdn.shopify.com/s/files/1/0438/2566/0066/files/offseason_basketball_weight_training_program.pdf
    • https://cdn.shopify.com/s/files/1/0435/2635/7160/files/bruno_munari_design_e_comunicazione_visiva.pdf
    • https://cdn.shopify.com/s/files/1/0437/0323/8811/files/16940921163.pdf
    • https://cdn.shopify.com/s/files/1/0433/0569/7438/files/29666987210.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_off0001c133.bin
c22012511ac29699a8971e6459f2447dc4a0ad7c2b3ddd2b733e6a90629b77e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x1C133 5532 bytes
font_01_sfnt_off0001d41e.bin
0d1772038433ca9bff2a5280c3243ca0eafd6bb6ffc8fb03ef4b5fd56f935f99
pdf-font-stream PDF embedded font (sfnt) at offset 0x1D41E 15508 bytes