Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc1c09bb77bce167…

MALICIOUS

PDF

40.8 KB Created: 2020-08-31 17:34:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7314fd823db7215ba8ea39848c89b875 SHA-1: 3f57a9be2c08d7a1bbdceab85fd26a0045c5697d SHA-256: cc1c09bb77bce167d104c3f299e89e3ed0e0bfbadde523617281b9a5d3efc6a3
120 Risk Score

Malware Insights

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

The PDF file contains a link disguised as sheet music, which redirects to a known malicious URL. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this behavior. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The document body, though heavily obfuscated, contains the text 'Lighter shade of pale sheet music' and the malicious URL, reinforcing the lure.

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.cc/pify?keyword=lighter+shade+of+pale+sheet+music
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/fozuxogatelowuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/8381/7375/files/63189025765.pdf
    • https://cdn.shopify.com/s/files/1/0432/1280/0168/files/all_bengali_job_newspaper.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/99013816036.pdf
    • https://static.usrfiles.com/ugd/dc51bb_aa3cbd4708fd4402ae0c39d4892336ed.pdf
    • https://static.usrfiles.com/ugd/b8c837_f0f034a21b39484ca9803036e72f6feb.pdf
    • https://static.usrfiles.com/ugd/b8c837_2f6a4ec01ce2412d9d447d9b7fc740d1.pdf
    • https://static.usrfiles.com/ugd/865d50_b72177d12a7a47dcae7d09ca905aefa2.pdf
    • https://static.usrfiles.com/ugd/b8c837_60b4d206c38c471dbc1e33b39cfaf50f.pdf
    • https://static.usrfiles.com/ugd/ce14f3_e9702fcfda8b41d88729574060a6219b.pdf
    • https://static.usrfiles.com/ugd/38bf1f_c76202d56e5444c089368ed6ae656fa9.pdf
    • https://static.usrfiles.com/ugd/eb5a6a_368312a81247491b8c95233a9b0f4c0c.pdf
    • https://static.usrfiles.com/ugd/a4d998_f9f05a5e484b4a6fa4585308d8292280.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_off00005297.bin
5551fbc7258723a9f610423e5e4891ac2afdb6c861ed654164aee4c57c854775		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5297 5508 bytes
font_01_sfnt_off00006535.bin
922a06b56d92918cc06e2e1bca9ce09c258774712bce4c3326f0bcba345890a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6535 14920 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.