Malicious PDF — malware analysis report

Static analysis result for SHA-256 eacfe4d665a494ae…

MALICIOUS

PDF

96.5 KB Created: 2020-09-02 00:44:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe6794464217e6ef21e4b57054384c12 SHA-1: 229ef1cc8f242cebe5beb47b8fd5193981093e64 SHA-256: eacfe4d665a494aeeaa1dee1c725d882c81661ffc7bdf7fe8e6395db7b8923a6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/wix?keyword=hey+jude+lyrics+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to disguise the link or use it as part of a lure. The primary intent appears to be redirecting users to malicious infrastructure.

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.ru/wix?keyword=hey+jude+lyrics+pdf
    • https://cdn.shopify.com/s/files/1/0434/2277/7496/files/cd_formatieren_mac.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/89581603863.pdf
    • https://cdn.shopify.com/s/files/1/0430/5593/9733/files/63331959744.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/lisozu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/nupevuniji.pdf
    • https://static.usrfiles.com/ugd/b97cba_727599caadb24374855eeec9b9b27538.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a102dd05cd640c09c166b36a8101432.pdf
    • https://static.usrfiles.com/ugd/d9f7b5_23d540b084584362ab71bbd167eb66c5.pdf
    • https://static.usrfiles.com/ugd/39cb9d_35d431a0f50a439685e9b901ea1e003d.pdf
    • https://static.usrfiles.com/ugd/63d3ad_9be54850228d479684b21cc22c042ecf.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7861/files/introduction_to_machine_learning_with_python_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0441/0766/1464/files/star_wars_battlefront_2_trainer.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5823/files/relidonejif.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/fb_status_video_song.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_off00012971.bin
52c4e919545d4ba6b3391ee38f9dcfa79160aa6c85671168d7a186a941faf4ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12971 5076 bytes
font_01_sfnt_off00013ad5.bin
5ae291f8e74833c8868fe1e4c4e95fb77731115cdda2f175692c531dc555e7e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13AD5 11020 bytes
font_02_sfnt_off00015fe6.bin
46d9b83afd797048ab251ddfc9ca9a6db44f3280724c231f6a80a061bcc6fc12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15FE6 16120 bytes

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