Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f09688448225493…

MALICIOUS

PDF

41.2 KB Created: 2020-08-02 20:44:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8555b5ea5c6b3148fe8f43dc0b83f5a6 SHA-1: ffa85c19eed6c899038185b160e8c506ad07df80 SHA-256: 8f09688448225493bfb970108f47758ba9c780d81ec4797a1e0db951da0c6d2b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic identifying it as a PDF link farm. One of the primary links directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains references to the redirector URL and a benign-looking PDF hosted on Shopify, suggesting a lure to a malicious site. The presence of a link farm and a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for phishing or malware delivery.

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=ben+10+alien+creator
    • http://files.yourhomeopathicsolution.com/uploads/1/3/1/4/131437307/kenededufi-rulorexujisegup-kigij.pdf
    • http://files.middleamericanmafia.com/uploads/1/3/1/3/131398560/lebelojipijalupa.pdf
    • http://files.jasonsmithendo.com/uploads/1/3/1/8/131871424/bapoterike-nedodosi-zijesekeruxen.pdf
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/3963733160.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/62011391083.pdf
    • https://cdn.shopify.com/s/files/1/0438/6055/7984/files/2575544315.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/lizoforifawemiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kaxepetumikikexozifaxu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2478/4283/files/21500240218.pdf
    • https://cdn.shopify.com/s/files/1/0437/6595/6760/files/lofomijikik.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/fuxavunagamisonoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7600/9622/files/30347320764.pdf
    • https://cdn.shopify.com/s/files/1/0428/9160/8227/files/zipuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2269/6098/files/82918313541.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
    • https://cdn.shopify.com/s/files/1/0434/6816/1176/files/download_putty_for_windows.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_off00006416.bin
98e311bb2367b03e76ec52339ee460803368d15a95e8222462a3edf1f8786b78
pdf-font-stream PDF embedded font (sfnt) at offset 0x6416 4860 bytes
font_01_sfnt_off000074b0.bin
ee5d628d8553ae4c616015f4e94edb1d3eb7d8d1ecae47b66f40aba75d008cd9
pdf-font-stream PDF embedded font (sfnt) at offset 0x74B0 10908 bytes