Malicious PDF — malware analysis report

Static analysis result for SHA-256 b98658d483ec7288…

MALICIOUS

PDF

43.8 KB Created: 2020-08-31 03:12:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f169df7fb8b0c80f47a4acd3e7a7e85 SHA-1: cb3d2ba4f1a6b5cb5df2b218d9c0a0ddd23791bf SHA-256: b98658d483ec7288a8381e1edabcf451cdbe79d89b481bf13db95198c54f373d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/wix?keyword=motu+proprio+2013', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to URLs, including the malicious redirector and a benign-looking PDF hosted on Shopify. The presence of a link farm suggests an attempt to distribute malicious links or to manipulate search engine results.

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.cc/wix?keyword=motu+proprio+2013
    • https://cdn.shopify.com/s/files/1/0448/5015/1584/files/confidence_intervals_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/lurumamodipumo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/information_security_analyst_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0428/7712/4764/files/kumisovurivimojilisame.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4afea57049f47549d6eebe7b958a90e.pdf
    • https://static.usrfiles.com/ugd/b8c837_6d5fbe06370441259d6897b82947527c.pdf
    • https://static.usrfiles.com/ugd/2274a7_474114f0853f49a4b0c72f21f9b563a8.pdf
    • https://static.usrfiles.com/ugd/32acb1_7bdff03a40ff4e53ba10bdfccfa81088.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c71c59435294bb49a24a87059cfecf8.pdf
    • https://static.usrfiles.com/ugd/253000_8c13f7421d794bf9ae0fa95b3d22cb7c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f23478dd962a49229d888a6a32ad5557.pdf
    • https://cdn.shopify.com/s/files/1/0437/2925/6613/files/latitude_and_longitude_lines_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0434/4191/4006/files/language_learning_disabilities.pdf
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/audiovisual_translation_subtitles_and_subtitling_theory_and_practice.pdf
    • https://cdn.shopify.com/s/files/1/0432/6260/7520/files/pinadewa.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/
    • https://cdn.shopify.com/s/files/1/0

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ee3.bin
4b0b362ff9626aab6465e4708cbfcac69b713ae7acaca7ff013c724656109b49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE3 4888 bytes
font_01_sfnt_off00007fa5.bin
ef33860b12ed2e0ba8ebcf3572ed3db04142e881ed7841cbc2a5fd5927d87ae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA5 10784 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.