Malicious PDF — malware analysis report

Static analysis result for SHA-256 be28ae632c8b2d3c…

MALICIOUS

PDF

39.7 KB Created: 2020-09-03 00:40:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d15a1c0bac7a50f7321bdf2bcf358d3 SHA-1: 0a0cddbff955884f4d352d22365cdd85ba281daa SHA-256: be28ae632c8b2d3cad3bc5440450a13410b380f9489fb1b8825361c713c6c6d9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.ru/wix?keyword=ff14+fashion+report+aiming+light', which is flagged as malicious. The presence of a link farm suggests an attempt to distribute malicious content or conduct phishing operations.

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.ru/wix?keyword=ff14+fashion+report+aiming+light
    • https://cdn.shopify.com/s/files/1/0439/4981/8024/files/diego_ojeda_mi_chica_revolucionaria.pdf
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/skyrim_music_overhaul.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/josaxagofabudoradutep.pdf
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/fumirikodaminulawubebatov.pdf
    • https://cdn.shopify.com/s/files/1/0447/3644/6613/files/eso_trials_and_tribulations_brazier_colours.pdf
    • https://static.usrfiles.com/ugd/3c2e2e_c5e1c03ffe0a491b8992bf711368fcf4.pdf
    • https://static.usrfiles.com/ugd/0b46e6_8bdb52c9176f4210814ad1fead05f2e8.pdf
    • https://static.usrfiles.com/ugd/628a76_c2f885542f564ad294dec8bc33d16e07.pdf
    • https://static.usrfiles.com/ugd/67e251_95927aa10a3d40e881100c957ce82845.pdf
    • https://static.usrfiles.com/ugd/b8c837_f100238045104009aca1b3929de9480e.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nenipuwewof.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/73813260005.pdf
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/bihar_police_online_apply_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/driving_school_2016_mod_apk_hack.pdf
    • https://cdn.shopify.com/s/files/1/0435/8835/4207/files/abigael_bohrquez_poemas.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/91645403298.pdf
    • https://cdn.shopify.com/s/files/1/0431/9579/3557/files/2771897560.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/tiwofepupujurediduxa.pdf
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/65924934843.pdf
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/fenuno.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_off00005b38.bin
00660e4f3a736e08deefd1b3329a904c2c21394230fd8d42c29f14fd3290230c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B38 5408 bytes
font_01_sfnt_off00006d81.bin
af36143f470165a41a74a11c4378b7c025b901f3d7cc294cf6fa05ab08ecfe89
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D81 10652 bytes