Malicious PDF — malware analysis report

Static analysis result for SHA-256 8121d93a15460021…

MALICIOUS

PDF

48.0 KB Created: 2020-08-14 21:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 923a15121b539bbe40925c6a8a3f33be SHA-1: f26d0649116dee6badbd8d740baa6cb15db7efcf SHA-256: 8121d93a15460021d856436f9fa28464164a957e1110303ec18d585b64feab62
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This is further supported by a PDF link farm heuristic, indicating an attempt to generate traffic or distribute malicious content. The document body contains a call-to-action phrase, suggesting a lure to trick the user into clicking the malicious link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=interactive%20pdf%20reader%20ios
    • http://files.jimpendergrass.com/uploads/1/3/2/8/132815961/xabixejeje-nenowapiwage-jisematonalon.pdf
    • http://files.edenplacefarms.org/uploads/1/3/1/3/131398250/36c4f389e18c0.pdf
    • http://fetatet.gentlehomeservices.com/uploads/1/3/2/3/132302815/efdf1da2d0e46.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6513/files/amphitheatre_design_standards.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/catalogo_de_tornillos_para_madera.pdf
    • https://cdn.shopify.com/s/files/1/0438/1900/8160/files/xemakakaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/18793256925.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0163/files/36550680766.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/movitone.pdf
    • https://cdn.shopify.com/s/files/1/0439/9969/0910/files/creative_writing_assignments_for_middle_school.pdf
    • https://cdn.shopify.com/s/files/1/0433/5196/5855/files/enlaces_quimicos_resumen.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/10773615617.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/vemigegofoxosudexes.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/22316947864.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/45923118791.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c84.bin
2785b0577a8c03cc2add4e3f7e5e9fdc4f5efd89aba312dcaf4f1a9e5d002e7e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C84 5116 bytes
font_01_sfnt_off00008df4.bin
b8bb9e0d8f957afcb5c354f0e99958f59c0cb0a96375d346f8f050b46bb4d565
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF4 11268 bytes