Malicious PDF — malware analysis report

Static analysis result for SHA-256 437108ba805b32a7…

MALICIOUS

PDF

38.3 KB Created: 2020-09-09 08:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64281c9e0e74db24554946daad45cfb6 SHA-1: 35e530aaa62bff774e10b63f016c4366b942bc16 SHA-256: 437108ba805b32a7b42caa4310b282b398d25de155d0dd92165cb8e7df2d1661
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=barrio+bravo+mundial+pdf'. Additionally, another critical heuristic indicates a PDF link farm, with multiple external PDF links embedded. The document body, though heavily obfuscated, contains the same redirector URL. The primary intent appears to be directing 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.link/wix?keyword=barrio+bravo+mundial+pdf
    • https://static.usrfiles.com/ugd/a2de88_fd6806c53f0a40acbd0e2bc925bb3cde.pdf
    • https://static.usrfiles.com/ugd/3826db_dace7503c8874fd3832a8307e708516a.pdf
    • https://static.usrfiles.com/ugd/0d2fda_b283f774886a4cd7958f9c71622dfca2.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa9ca426d15349f3a5bc093628f85eeb.pdf
    • https://static.usrfiles.com/ugd/3e9e83_f5785c3dadd64236898d52ce08830a7c.pdf
    • https://static.usrfiles.com/ugd/cec570_83b42976f0454984b702589e454db50d.pdf
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/11015981937.pdf
    • https://cdn.shopify.com/s/files/1/0433/4429/8133/files/warotavofuvegikavapej.pdf
    • https://cdn.shopify.com/s/files/1/0437/4488/6945/files/episiotomy_repair_video.pdf
    • https://cdn.shopify.com/s/files/1/0444/2993/4758/files/kabbalat_shabbat.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_off0000582f.bin
3f05f72ff737dfb2e7e797d01e58a5d5a51e510666f588e1a247d9237c99c61d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x582F 5256 bytes
font_01_sfnt_off000069f9.bin
d49e36ff33b558905fa8d4f7a5f2532ac81f38582e0a7edbd3e3d33ee8a52754		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69F9 10288 bytes

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