Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0ddb4d614d396b0…

MALICIOUS

PDF

41.4 KB Created: 2020-08-14 21:41:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9babfa8bd1738793d26780e77e7d6d5d SHA-1: b3ca1bb4dd21848c0072dca2834f047e9c12df76 SHA-256: c0ddb4d614d396b0948f9e41ea93fa5c857e8229b7493c674f3ff7954fdafabb
160 Risk Score

Malware Insights

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

The PDF contains a social engineering lure, instructing the user to download a 'Google Chrome installer'. It embeds numerous links, with a critical heuristic identifying a malicious redirector at `https://ttraff.cc/pify?keyword=google+chrome.+exe+free++for+windows+8`. This redirector likely leads to the download of a secondary payload. The presence of a link farm and the browser extension installation lure further support a malicious intent to trick the user into executing untrusted content.

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.cc/pify?keyword=google+chrome.+exe+free++for+windows+8
    • http://files.abluedotkitchen.com/uploads/1/3/1/3/131379268/5425137.pdf
    • http://files.bribetter.com/uploads/1/3/0/8/130815137/1381984.pdf
    • https://cdn.shopify.com/s/files/1/0434/8621/6344/files/20714220113.pdf
    • https://cdn.shopify.com/s/files/1/0433/8427/5100/files/55597449023.pdf
    • https://cdn.shopify.com/s/files/1/0429/7087/4009/files/danavudopizikepowoboxu.pdf
    • https://cdn.shopify.com/s/files/1/0454/7330/0632/files/etiologi_amenore_sekunder.pdf
    • https://cdn.shopify.com/s/files/1/0431/4641/2188/files/tedufetofuzi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4809/8209/files/16375016070.pdf
    • https://cdn.shopify.com/s/files/1/0434/5813/4182/files/microsoft_word_how_to_guide_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/96309719945.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25696514874.pdf
    • https://cdn.shopify.com/s/files/1/0436/6611/2662/files/gedonudulerukubobilelam.pdf
    • https://cdn.shopify.com/s/files/1/0439/0954/6136/files/livaladamekevutona.pdf
    • https://cdn.shopify.com/s/files/1/0434/1317/6469/files/importancia_da_analise_swot.pdf
    • https://cdn.shopify.com/s/files/1/0440/8141/4296/files/vakigisiverovu.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_off000062da.bin
f9b37004aeb3135bc94f7824d3aea093c3b61d42e5bdabf7356b25bf90399ec8
pdf-font-stream PDF embedded font (sfnt) at offset 0x62DA 5640 bytes
font_01_sfnt_off0000760e.bin
26ec99c296f53fda49d3936454c36bcc9123ec211b6b119ec6b42fa50af11b0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x760E 10084 bytes