Malicious PDF — malware analysis report

Static analysis result for SHA-256 58d4b469e36e6c67…

MALICIOUS

PDF

41.6 KB Created: 2020-08-30 00:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e982212e2bb921391bc4d13d79f6842 SHA-1: b06fe1e31e1de2041e8a04a39c26ca8598bef8e4 SHA-256: 58d4b469e36e6c671164a7873389f40f570edadc887a235dde878008157e28a7
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=naruto+shippuden+244'. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Naruto shippuden 244' and the malicious URL. The file also exhibits characteristics of a link farm, with numerous embedded URLs, though most resolve to benign content. The primary malicious indicator is the redirector URL, suggesting a phishing or malware delivery attempt.

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=naruto+shippuden+244
    • https://static.usrfiles.com/ugd/b8c837_d877d489ded745c4a13b317d7fd2fbaa.pdf
    • https://static.usrfiles.com/ugd/a467d2_b53d50b5923f4a11880fca7fb578d601.pdf
    • https://static.usrfiles.com/ugd/cf79db_22769a7053654dd4a8e2f9cd326cef97.pdf
    • https://static.usrfiles.com/ugd/599f1c_33239ad032104051af311a9d13493fd4.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/bloatware_remover_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/jonenasag.pdf
    • https://cdn.shopify.com/s/files/1/0437/3987/3429/files/john_deere_265_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4823/files/systems_understanding_aid_9th_edition_solutions.pdf
    • https://static.usrfiles.com/ugd/2ac701_04648110ab5b4d068c030abde1fce182.pdf
    • https://static.usrfiles.com/ugd/dd4472_1b8bd657e2ba434f9978bc20d7132c14.pdf
    • https://static.usrfiles.com/ugd/b8c837_65753c6de48c4181ab587ea8a8e608a2.pdf
    • https://cdn.shopify.com/s/files/1/0435/5319/4133/files/equipos_de_control_de_contaminacion_atmosferica.pdf
    • https://cdn.shopify.com/s/files/1/0433/5586/5242/files/travel_planning_calendar.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/curriculum_development_in_language_teaching_richards.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/getug.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/national_oil_seal_cross_reference.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_off000057ff.bin
59884176abda8e7c2c67501ce81e910ffbf8e8d3d93605fb164470514dbd6df1
pdf-font-stream PDF embedded font (sfnt) at offset 0x57FF 3888 bytes
font_01_sfnt_off000065ba.bin
486bbb29aff41f18c2590485be8cae7434f6386658a73d92e364f46933219ec5
pdf-font-stream PDF embedded font (sfnt) at offset 0x65BA 5204 bytes
font_02_sfnt_off0000776f.bin
b5548fe83188c79b8a2bc4f58b39c57a9282eaa74935c76dca9031d641ca724d
pdf-font-stream PDF embedded font (sfnt) at offset 0x776F 9932 bytes