Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7545df10c76d4b5…

MALICIOUS

PDF

41.9 KB Created: 2020-09-18 17:50:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 432cd373bda01b42367b5e89a38dfa17 SHA-1: 3a37736eb4b629389f04701258e76c39ced17267 SHA-256: e7545df10c76d4b5fd69d243a0d684a857c5e8c7fcbf78ac90440a8438a0c4a6
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=deadpool+kills+the+marvel+universe+t%25C3%25BCrk%25C3%25A7e+pdf'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains this URL and other embedded URLs, suggesting a lure to trick users into clicking on malicious links. The presence of a link farm heuristic further supports the malicious intent.

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.club/wix?keyword=deadpool+kills+the+marvel+universe+t%25C3%25BCrk%25C3%25A7e+pdf
    • https://cdn.shopify.com/s/files/1/0431/6354/9845/files/30299047908.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7261/files/chemdraw_for_students.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/zebunodilusebu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/bavobojaweva.pdf
    • https://cdn.shopify.com/s/files/1/0432/8131/8056/files/essential_biology_text_book.pdf
    • https://db4b010d-256b-4ddb-825c-49237955dc91.filesusr.com/ugd/41f880_8b2797d7888248eb87c6b75302b22119.pdf?index=true
    • https://e20dc2ba-3f84-4937-b917-ce2caae71d73.filesusr.com/ugd/b80405_42781664c8e44b0cbb6411fdaed996e6.pdf?index=true
    • https://7a076f62-b72d-47cf-9662-e44c47696eed.filesusr.com/ugd/f9d4cd_695f05ddc8184c0d87e9b0a75be5ec2b.pdf?index=true
    • https://2eacbb87-14a0-4832-8791-9bc40e93a7e9.filesusr.com/ugd/c67d0c_3028af0f0d244cd0a789e0a707a1b7a5.pdf?index=true
    • https://ac5985fa-c2ba-4f72-ba20-7cff911254e2.filesusr.com/ugd/70094d_857e32279bb54c82a09a867ebb26abe7.pdf?index=true
    • https://0166657d-6a0e-4643-8b9c-1b860db92a79.filesusr.com/ugd/1b7c00_f11d718a8bd346f89dbbb448fcae19ef.pdf?index=true
    • https://73c9e7fd-3b3f-4755-8d13-f242cc9d1821.filesusr.com/ugd/5aec95_13ad2824dd934fcc9289b12d26d7e9e0.pdf?index=true
    • https://91712619-9ce0-460f-8a1c-3202fdbd2ba4.filesusr.com/ugd/9c8fb9_852c8b011fbc470088cc74e2431b0ab4.pdf?index=true
    • https://adeff610-8751-4cd4-ba90-c94e8c48daec.filesusr.com/ugd/cc3ca9_bc190c8a76af479ba3de140b21f707df.pdf?index=true
    • https://d43defb2-71c3-4c2a-8062-c412030e660b.filesusr.com/ugd/e481ce_a955a71cdc794863ae9fddca778793e4.pdf?index=true
    • https://f303fa0c-2cc3-487f-b295-f19b02dab6e4.filesusr.com/ugd/b65acf_06d1bad974df46608eedbb446ac59c3f.pdf?index=true
    • 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_off0000615a.bin
374f01ab2d8fdddc398597a7bd16a1b62fe787bf38345092cb9aa2ae3323adc3
pdf-font-stream PDF embedded font (sfnt) at offset 0x615A 5704 bytes
font_01_sfnt_off00007473.bin
ef88be0ce609133003fdc43d55d75f6805b228133837e9e508f5ed2ac8c6f3e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7473 10548 bytes