Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d2907e699d2d7bc…

MALICIOUS

PDF

109.5 KB Created: 2020-08-25 20:19:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fec41535942b0ef0c33f928e57b2ca9 SHA-1: 49296a9234cd6259113983745d64cb4ff9da34dd SHA-256: 7d2907e699d2d7bcb5d63ae582a1def5f9475cb7df4d539909460fa40a7b4772
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous external links. One of these links, 'https://ttraff.com/pify?keyword=v%25C3%25A1no%25C4%258Dn%25C3%25AD+film+Brandona+routha', is identified as a malicious redirector. The document body appears to be heavily obfuscated or corrupted, but the presence of this malicious link suggests an attempt to redirect the user to a harmful site. The file was generated by wkhtmltopdf, indicating it might be part of a larger phishing or malware distribution scheme.

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/pify?keyword=v%25C3%25A1no%25C4%258Dn%25C3%25AD+film+Brandona+routha
    • http://wevino.animachristiretreats.org/uploads/1/3/0/7/130776008/4424f.pdf
    • http://zekemim.elizabethkotite.com/uploads/1/3/1/4/131454415/tudipizaxawizopa.pdf
    • http://lutinon.meschkoctt.com/uploads/1/3/1/4/131407995/fd967ebfa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/megutakikevonupijunef.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/99746766630.pdf
    • https://cdn.shopify.com/s/files/1/0431/0227/3697/files/dajuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/famiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/us_home_address.pdf
    • https://cdn.shopify.com/s/files/1/0466/5635/6517/files/taribenifuvame.pdf
    • https://cdn.shopify.com/s/files/1/0440/9108/0869/files/40452158872.pdf
    • https://cdn.shopify.com/s/files/1/0462/3826/9591/files/62995235077.pdf
    • https://cdn.shopify.com/s/files/1/0434/6288/5541/files/77961887712.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7078/files/wenaxotowexexuvedavoxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/8839/6959/files/joravevulaliwegofirimis.pdf
    • https://cdn.shopify.com/s/files/1/0433/5481/6665/files/blandad_form_division.pdf
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/schematic_report_sample.pdf
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/gamafewerupamafotugi.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_off00015e5d.bin
94997bf102e2410b23aebceee9c79dbe73568dd4bc1def579a1a2136a1b79277
pdf-font-stream PDF embedded font (sfnt) at offset 0x15E5D 5508 bytes
font_01_sfnt_off00017063.bin
f9f0bd8192e6c9c7278601c6b77bbdeace5a1e0f440da5297a02d5abd93a4a2e
pdf-font-stream PDF embedded font (sfnt) at offset 0x17063 19336 bytes