Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0532895dae11e30…

MALICIOUS

PDF

40.9 KB Created: 2020-08-17 08:37:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 590f48517471a2efacaebbaaf091b996 SHA-1: fcf4d6f21b73824c0c7bd226bb8bab39b7704d53 SHA-256: c0532895dae11e3051b5b820ba51800db0ab12ce1eb14b8d336ffd00d3e77739
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a social engineering lure, instructing the user to install a browser extension or update to view content. It embeds numerous links, including a critical redirector link to 'ttraff.com', which is associated with malicious activity. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=video+from+facebook+add+on+chrome', reinforcing the lure. The presence of a link farm and a redirector suggests an attempt to lead the user to a compromised site.

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=video+from+facebook+add+on+chrome
    • http://files.loyalwillcaninehydrotherapycentre.co.uk/uploads/1/3/1/4/131437074/pejegedes_revodapopateru_gakano.pdf
    • http://files.clairemcgee.com/uploads/1/3/1/8/131856122/xuregevu.pdf
    • http://files.jasonbraun.com/uploads/1/3/1/1/131163872/210e36.pdf
    • https://cdn.shopify.com/s/files/1/0434/7196/2269/files/bielactwo_wrodzone.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/24366794670.pdf
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/levibibevepeguvuxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/dafevox.pdf
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/6881103834.pdf
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/19374783905.pdf
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/69029018054.pdf
    • https://cdn.shopify.com/s/files/1/0435/5063/8241/files/rifesovifabibubutet.pdf
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/88432733966.pdf
    • https://cdn.shopify.com/s/files/1/0429/3882/6908/files/datoginowetimigadu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3366/4420/files/vozapanit.pdf
    • https://cdn.shopify.com/s/files/1/0433/9784/1054/files/rinejevuvazoxazunugawuze.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/economic_botany.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_off0000639b.bin
6e0ab6d624aabecde1b39d4e386fb7e8c27f8f4c0ef2dc71cb8b3b64688f3fce
pdf-font-stream PDF embedded font (sfnt) at offset 0x639B 5220 bytes
font_01_sfnt_off00007530.bin
d94c17ec04d9d595139e4c5adada667f135a797f38beaacb7b8b22320423910f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7530 9832 bytes