Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d6ccee9b545553…

MALICIOUS

PDF

48.2 KB Created: 2020-08-31 06:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86e46af447e00b6a920045e8fe16e3c1 SHA-1: 8c370c50419bbb1137b2fedc4d541b1192c71aa8 SHA-256: d1d6ccee9b545553dbdc89fd07326cf1fe09300c555362d4f1dcf3458c0561b7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=death+be+not+proud+john+donne'. Additionally, it exhibits characteristics of a PDF link farm, embedding multiple external links, with the first identified as 'https://cdn.shopify.com/s/files/1/0461/7633/8073/files/diccionario_biblico_teologico.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a social engineering attempt to redirect users 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.ru/wix?keyword=death+be+not+proud+john+donne
    • https://cdn.shopify.com/s/files/1/0461/7633/8073/files/diccionario_biblico_teologico.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/34577744406.pdf
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/2015_chevy_cruze_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/jizos.pdf
    • https://cdn.shopify.com/s/files/1/0435/7285/4939/files/ubuntu_16._04_32_bit_iso_image.pdf
    • https://static.usrfiles.com/ugd/0049ca_2f8f655da648490a88cde1a7ef8e050f.pdf
    • https://static.usrfiles.com/ugd/0779a3_8e094ff621234137abb9384095071d71.pdf
    • https://static.usrfiles.com/ugd/5b9a87_783b56bc678e492a9cc051d05966a23a.pdf
    • https://cdn.shopify.com/s/files/1/0450/5973/5704/files/bangla_autobiography.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/numonerubikulexajanitemol.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e1e.bin
38fa306e2718082264fea9f7d167c4575bd1b6d4055c5719f326eaaa55c2d201		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1E 4884 bytes
font_01_sfnt_off00007ea6.bin
e1b6aacea3aae1225383ff788b96a269b662ab51631411118bcd52f5116c3c37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA6 12176 bytes
font_02_sfnt_off0000a642.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA642 4324 bytes

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