Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f5ae4c073d4a44…

MALICIOUS

PDF

36.9 KB Created: 2020-08-07 10:06:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ba2c3319d18617cb5f941499e6b6f36 SHA-1: f60bf6e853358f3f233a0cfc8bc31eeecd062fd8 SHA-256: f2f5ae4c073d4a449a28988c8eddbe668a9d12e337386ec180dc286d846b3cf6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious URL, https://ttraff.ru/pify?keyword=introduction+to+geographic+information+systems+9th+edition+pdf+download, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to PDF downloads and the malicious URL, suggesting a lure to trick users into clicking through to potentially malicious content.

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/pify?keyword=introduction+to+geographic+information+systems+9th+edition+pdf+download
    • http://wifexolu.jonathanjohnson.net/uploads/1/3/2/8/132816066/sesutep.pdf
    • http://pogevak.noelanipta.org/uploads/1/3/0/8/130874655/9431467.pdf
    • http://files.baeculture.org/uploads/1/3/1/4/131437295/jusowupit-fusozaruj-kagunojuweg-zulilaturuzaz.pdf
    • http://files.annastark.com.au/uploads/1/3/1/4/131453855/224414.pdf
    • https://cdn.shopify.com/s/files/1/0433/7539/4979/files/xonelut.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/61030812111.pdf
    • https://cdn.shopify.com/s/files/1/0435/2707/8042/files/baror.pdf
    • https://cdn.shopify.com/s/files/1/0435/7606/6207/files/matipebegobibodarobuxa.pdf
    • https://cdn.shopify.com/s/files/1/0428/3334/6719/files/lefawe.pdf
    • https://cdn.shopify.com/s/files/1/0433/1667/4713/files/sudetunajijafisif.pdf
    • https://cdn.shopify.com/s/files/1/0430/4764/9429/files/63465634936.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/lurexagewusaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/9434/3841/files/vedutivuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/2094/2486/files/79333835584.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/jalorofujezegizominifi.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_off00005133.bin
882ab3a2c33631081f8ade7d3eda76307c4d5c712add38dde4247b7e07f075cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5133 5856 bytes
font_01_sfnt_off0000650f.bin
15ac5bb9de27be408735df37b62bd96d6f9179e29dffef6ae8b467e292fbf98a
pdf-font-stream PDF embedded font (sfnt) at offset 0x650F 9716 bytes