Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc67cc1f7a3b46fa…

MALICIOUS

PDF

49.7 KB Created: 2020-09-04 03:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9565ed2679ca6cdeca897c52d32c1c35 SHA-1: ec9534101c697cbc674264ef0646f424983c1d46 SHA-256: fc67cc1f7a3b46fae7304916478e9248e9b995be2163871b8678a3e51ab0c35e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=empirical+legal+research+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are benign Shopify URLs. The primary malicious URL is likely intended to redirect the user to a phishing or malware distribution site. No scripts were extracted from this sample.

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.com/wix?keyword=empirical+legal+research+pdf
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/dulugorofakuzunadorat.pdf
    • https://cdn.shopify.com/s/files/1/0434/3745/7574/files/vesifatar.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/58384471779.pdf
    • https://static.usrfiles.com/ugd/77d535_c7decf94f47a4471b0893e7f0167375e.pdf
    • https://static.usrfiles.com/ugd/0511f5_ea03debf5545401e8a935bb39b3aa438.pdf
    • https://static.usrfiles.com/ugd/db80c5_1c8dd9eb6f134079b414229c492fde09.pdf
    • https://cdn.shopify.com/s/files/1/0433/7287/1832/files/7837003314.pdf
    • https://cdn.shopify.com/s/files/1/0439/1524/7771/files/clicker_heroes_hero_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/5094/1078/files/warhammer_fantasy_army_books.pdf
    • https://static.usrfiles.com/ugd/89363e_fd71b36986ea4f038b76a2a0239d7e97.pdf
    • https://static.usrfiles.com/ugd/8c7d07_21ca59a9d8c94dd0aaba5ea3d19e7af3.pdf
    • https://static.usrfiles.com/ugd/3de8a6_3dd4f425c2274f77a934e2edbf6da553.pdf
    • https://static.usrfiles.com/ugd/868401_e3e697dafde647828fc0df06735ca437.pdf
    • https://static.usrfiles.com/ugd/a3b54b_dbd9b7b236154fc5a0cad3975569c307.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_off00008391.bin
69a93ca5118b8e87a2198b242b9ecc771de2ac2acf43f0e2275ee34879fb9691		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8391 5524 bytes
font_01_sfnt_off00009631.bin
39436c6b349f5f0361cbd7835d61b52d546fe87a43ce3ad201311150ff1f45a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9631 10588 bytes

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