Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f12cb340892710d…

MALICIOUS

PDF

42.7 KB Created: 2020-09-06 18:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b731c9b449f7fa04213598ed46ff8df SHA-1: 16197e097eb1080d30a682f596d8a10782b3d88b SHA-256: 2f12cb340892710d07cdffeaef618f3b82a9d5b1bba2800ca4bb409b34e00510
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=bad+blood+movie+2017'. This indicates an attempt to trick the user into visiting a malicious site. The document body, though heavily obfuscated, also contains this URL and numerous other PDF links, consistent with a link farm or phishing lure. The presence of multiple PDF links, many pointing to benign content, suggests an attempt to blend malicious links with legitimate-looking ones.

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.link/wix?keyword=bad+blood+movie+2017
    • https://static.usrfiles.com/ugd/b8c837_92d19a79efe345d0bc8ffa3f4fb0913e.pdf
    • https://static.usrfiles.com/ugd/22bf55_b916c3fc4ed346db96365e36c85f7de2.pdf
    • https://static.usrfiles.com/ugd/a382ee_be49aa5a615345d1959dabc352a944c7.pdf
    • https://static.usrfiles.com/ugd/338562_d48f538679e240fb828ed45aa215281c.pdf
    • https://static.usrfiles.com/ugd/cb2bed_c282919ff44640ff8412ca0569b9017c.pdf
    • https://cdn.shopify.com/s/files/1/0441/1519/8104/files/android_binding_adapter_not_found.pdf
    • https://cdn.shopify.com/s/files/1/0465/0355/9320/files/zefenopime.pdf
    • https://cdn.shopify.com/s/files/1/0432/5657/8206/files/nodegunup.pdf
    • https://cdn.shopify.com/s/files/1/0435/5109/6993/files/doseku.pdf
    • https://cdn.shopify.com/s/files/1/0434/5040/0928/files/chrome_canary_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38664456414.pdf
    • https://cdn.shopify.com/s/files/1/0433/3781/0075/files/41228581259.pdf
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/99_names_of_allah_in_urdu_translation_free_download.pdf
    • https://static.usrfiles.com/ugd/63f22d_e5f5d41d1bd740419f5f4b55ab738df3.pdf
    • https://static.usrfiles.com/ugd/defd8a_595c6bfbd65e4972ace4e84705a875b8.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_off0000534d.bin
b12d5bfe21414e5e2afc0183be4e4e4675bc6c2ce3681fa598ae21f68645f9a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x534D 5352 bytes
font_01_sfnt_off00006583.bin
65cac195e1ba511599c3b746b5d481ff4e5cc1a0ea3c622011cc2cc2e4d4d940
pdf-font-stream PDF embedded font (sfnt) at offset 0x6583 10332 bytes
font_02_sfnt_off0000891a.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x891A 16092 bytes