Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4593212c95d391b…

MALICIOUS

PDF

39.9 KB Created: 2020-09-01 05:20:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e42b0267113beff1935b868bf093ae4 SHA-1: 82e5f119f5cfef8eaab00072e75716c41d882baf SHA-256: f4593212c95d391bfd3af36b0815bcf0e229c6e37f80b7fc99fbabda224bf251
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=bajrangbali+photos++hd'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://static.usrfiles.com/ugd/6a7407_788b1d2609fb484883bc6b77fd77edd3.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting the primary intent is to redirect the user 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.com/wix?keyword=bajrangbali+photos++hd
    • https://static.usrfiles.com/ugd/6a7407_788b1d2609fb484883bc6b77fd77edd3.pdf
    • https://static.usrfiles.com/ugd/b8c837_b4e068cd1c614cf291017845393bdc4e.pdf
    • https://static.usrfiles.com/ugd/b8c837_fbc05465ae0a4ac48cead0826860b0c9.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f727f6ac632499190095df9fa5c858d.pdf
    • https://static.usrfiles.com/ugd/d3758e_02ec7b1733844573988ec10a98c5947d.pdf
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/temikifu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4198/files/gebaxadelesolen.pdf
    • https://cdn.shopify.com/s/files/1/0461/6480/3747/files/70081139157.pdf
    • https://cdn.shopify.com/s/files/1/0432/4635/4592/files/59591424544.pdf
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/a_view_from_the_bridge_revision_guide_pdf.pdf
    • https://static.usrfiles.com/ugd/b8c837_dab5dad5c154444baac3490c4848d38d.pdf
    • https://static.usrfiles.com/ugd/b8c837_79e5621b3b93465c933d78aa27bd31cc.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_off0000532f.bin
c8da665073b0bba1fd9740298658ed9c836140f26db4fc362e56ff21165c9b62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x532F 5488 bytes
font_01_sfnt_off000065cb.bin
f919cd5d0d51ebe5875d0485c81c2a15510db8758e37d3377ce8b9a763179baf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65CB 10072 bytes
font_02_sfnt_off0000884c.bin
cba5f74efde00b08572687be94f62dc809644252f25f49ebc515c3eae0593eb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x884C 2572 bytes

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