Malicious PDF — malware analysis report

Static analysis result for SHA-256 483e4605f2c4f328…

MALICIOUS

PDF

43.2 KB Created: 2020-08-14 11:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4e8f9cd310f82f5ce4acb2e00e560d9 SHA-1: 0cb7904805603bf0cee57dbeff2895ab3397ea6c SHA-256: 483e4605f2c4f32831562f137812c7616529c01c1d2c7ebc12402fe57561adda
160 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many pointing to a link farm hosted on Shopify, designed to obscure the ultimate destination. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely used to funnel victims to further malicious content. The presence of a 'LOLBin run command' heuristic suggests that the PDF may also contain instructions or embedded scripts to execute commands on the user's system, potentially downloading and executing additional payloads.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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=google+sheets+get+substring
    • http://suwevutej.polishmesilly.com/uploads/1/3/0/8/130813094/5066838.pdf
    • http://files.mareda.org/uploads/1/3/1/4/131438759/ralipaj.pdf
    • http://fomake.holycommunitychurch.org/uploads/1/3/0/8/130874493/c9fb4f29c699a18.pdf
    • http://files.pft-alexander.com/uploads/1/3/0/9/130969699/7866717.pdf
    • https://cdn.shopify.com/s/files/1/0431/3088/0162/files/80920564230.pdf
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/salepage.pdf
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/powershell_ftps_script.pdf
    • https://cdn.shopify.com/s/files/1/0438/9906/0392/files/90575113722.pdf
    • https://cdn.shopify.com/s/files/1/0434/4774/6716/files/51203597234.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/sanofusotab.pdf
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/pisuvojisabepivaxuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/best_wow_private_servers.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/programming_aptitude_test_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/2597/3916/files/11457520793.pdf
    • https://cdn.shopify.com/s/files/1/0431/8543/8884/files/30294361092.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/jobumabamanovedu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0576/9888/files/metal_forming_handbook.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_off0000644f.bin
b770508ca1630842917a56e0ed47fcfe7db46aa365d3e2165781c430fbb62c2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x644F 4908 bytes
font_01_sfnt_off00007506.bin
aaed4c935f490f2f6ae9ff29d6179ac8a56827b172944fe1df9c8b3d8101d568
pdf-font-stream PDF embedded font (sfnt) at offset 0x7506 13400 bytes