Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f0b38dbeef8594…

MALICIOUS

PDF

40.6 KB Created: 2020-08-29 21:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e31855a0d868a05172a1670c5be6eb3 SHA-1: be715170ba970085780b37983aab4b0846b12b5b SHA-256: d2f0b38dbeef8594d96e52bc4edc68067c5c7c7d4798afcb709f411603fd10ce
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059 Command and Scripting Interpreter T1566 Phishing

The PDF document contains a link to a known malicious redirector, which is part of a link farm designed to distribute malicious content. The document body text, though garbled, contains a phrase suggesting a lure for technical support credentials. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack.

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/wix?keyword=utilisateur+et+mot+de+passe+technico
    • https://static.usrfiles.com/ugd/5fd5c1_5e31a9a1a5754594beef20b9211e50f0.pdf
    • https://static.usrfiles.com/ugd/bf650e_2c32eafa237043e3833ae5092c1963a6.pdf
    • https://static.usrfiles.com/ugd/b8c837_5ef510d21cea40feb2e98415b686354f.pdf
    • https://static.usrfiles.com/ugd/a2e20a_f97b4911526b4b618882956cb3e40525.pdf
    • https://static.usrfiles.com/ugd/3aca14_00cd2bed3c494df98a3fde0d363c9b30.pdf
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/voxag.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec3d10dc871d4deeb181ea8c5fc45698.pdf
    • https://static.usrfiles.com/ugd/b8c837_b508ac2e86d046f5b0078f3fef4526a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_4428a6865b444c5a8e2229b284c24979.pdf
    • https://static.usrfiles.com/ugd/b8c837_c9cfdad9411f46a3af873fc3decc710c.pdf
    • https://static.usrfiles.com/ugd/b8c837_3dac6d33d23745beac1c2bc26ccdf979.pdf
    • https://static.usrfiles.com/ugd/b8c837_2a21f5c85e794d8d9114d9f97d24ec2e.pdf
    • https://static.usrfiles.com/ugd/e7e4a0_a0f6e96b782741e5adf358821ce547c2.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_off00005df8.bin
f87a43847ed3a56f7a4299cd134e32e4c457187752dacaafba3e6b8408547801		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF8 5304 bytes
font_01_sfnt_off00006fd2.bin
006b960bd12ee87bb1390ad09094d2fdeb16ce02f0b84ae527516f2c29967c45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD2 11212 bytes

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