Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a97f3dbe7d41f4…

MALICIOUS

PDF

44.0 KB Created: 2020-08-12 17:28:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06ff956568f8ec77ddc7853f67de4391 SHA-1: 5ad2aa4a08d71804bfd0bb9367af54436dad3052 SHA-256: 59a97f3dbe7d41f4e6de07888b7bf8554f3aea26c85a6fd91f9a8087d334dfe0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=adobe+reader+pdf+application+download'. The document body also contains this URL, presented as a lure for downloading Adobe Reader. This suggests a social engineering attack aimed at redirecting users to malicious infrastructure, likely for further exploitation or malware delivery. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, potentially for SEO manipulation or to obscure the malicious redirector.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.com/pify?keyword=adobe+reader+pdf+application+download
    • http://files.floridatennismagazine.com/uploads/1/3/0/9/130969967/jamaritidepufi_bogutimuni.pdf
    • http://files.datumautomation.com/uploads/1/3/1/4/131437119/zesuzijafipeku_tinurop_pulefeg_zijusuxadalen.pdf
    • http://files.littlehartspreschool.com/uploads/1/3/1/3/131379540/7136773.pdf
    • http://kamurod.ericavannon.com/uploads/1/3/1/1/131164250/6228943.pdf
    • http://files.coaching-planet.com/uploads/1/3/0/9/130969431/6841827.pdf
    • https://cdn.shopify.com/s/files/1/0437/6982/3383/files/c_programming_tutorials_in_sinhala.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/key_and_peele_college_football_names.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/letter_format_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/73482253981.pdf
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/kisuwavib.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/9161753419.pdf
    • https://cdn.shopify.com/s/files/1/0440/4730/2806/files/install_small_chrome_extension.pdf
    • https://cdn.shopify.com/s/files/1/0434/6524/4832/files/cancer_del_cervix.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/17867682368.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/jekufesigagigojenofasawe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/vinepogef.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_off00006c91.bin
f259a890a23aced329f008b3b8c5d14ac2b5d5153bf3d1948c8abdc6f815a658
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C91 5192 bytes
font_01_sfnt_off00007e57.bin
1913e614e91110c3bdd914e1ec22d0968d6781eeef4a66f7e575db69104b6c6e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E57 10668 bytes