Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7f1eaa16fe9dbfb…

MALICIOUS

PDF

46.9 KB Created: 2020-08-02 20:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f5a00c263aed5d8d34f1f15d258097f SHA-1: 6872fcccae16cfd1b05bfbc5837942de3e47e763 SHA-256: b7f1eaa16fe9dbfbba8cb29dddc67efd5a4ac31c65fc97e9cb81e4b1388f63c0
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or redirection strategy. The primary attack pattern involves tricking the user into clicking the malicious link, likely leading to further compromise.

Heuristics 3

  • 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.
  • 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=epic+battle+fantasy+3
    • http://files.keysboatdocks.com/uploads/1/3/1/1/131164479/fuvopezarodadi.pdf
    • http://files.priestlysalvage.ca/uploads/1/3/0/7/130775220/c7ac1ad82c.pdf
    • http://files.laffpathways.com/uploads/1/3/1/6/131606408/zajiginina.pdf
    • https://cdn.shopify.com/s/files/1/0431/9949/6351/files/sizidozufafaxugofos.pdf
    • https://cdn.shopify.com/s/files/1/0432/7063/5678/files/55771283916.pdf
    • https://cdn.shopify.com/s/files/1/0438/6550/5952/files/rokorafek.pdf
    • https://cdn.shopify.com/s/files/1/0433/1818/2041/files/introduction_to_mechatronic_design.pdf
    • https://cdn.shopify.com/s/files/1/0432/0198/6723/files/26947722607.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/nisowividamamajab.pdf
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/12904094868.pdf
    • https://cdn.shopify.com/s/files/1/0434/2012/3293/files/nevoze.pdf
    • https://cdn.shopify.com/s/files/1/0431/4827/9970/files/99692663567.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23631451812.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/leresanizadowovawidogaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gabagijujusudizal.pdf
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/64225966161.pdf
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/73087568602.pdf
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/nowodudavafamubumedilapos.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_off00007885.bin
247f660a0494a347e74036affab390054c6e52c86cbe2fc24d1718a11b3e8b2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7885 5276 bytes
font_01_sfnt_off00008a9c.bin
16aa247efa77f5138459cc019316498237fea2bec80528c8ef1d3ba8596e2096		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9C 10472 bytes

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