Malicious PDF — malware analysis report

Static analysis result for SHA-256 23653f66badb1379…

MALICIOUS

PDF

57.2 KB Created: 2020-08-01 06:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b60ee96337a7f31690ffbe3fe78ea961 SHA-1: 533d353f3204a6bbbe1423f3508dc9bfb3d04ccc SHA-256: 23653f66badb1379e6f183ab3cdf1e51acd2ea376853c0e4eb7a5fe3f0c744ce
200 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment T1059.003 Windows Command Shell T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO poisoning or to distribute further malicious content. The heuristics indicate a lure to execute commands or install browser extensions, aligning with social engineering tactics to trick users into compromising their systems. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=bing+rewards+search+bot
    • http://files.journeystoflavors.com/uploads/1/3/0/9/130969555/a18860d033.pdf
    • http://files.fudge4hooks.com/uploads/1/3/1/3/131379718/5419cb4cbb.pdf
    • http://files.worldchampionshipgoatcookoff.com/uploads/1/3/0/7/130740242/1623352.pdf
    • http://files.camaroclubkc.org/uploads/1/3/1/1/131164424/6354499.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/john_deere_333d.pdf
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/84224139677.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63491738983.pdf
    • https://cdn.shopify.com/s/files/1/0430/0505/1029/files/ziwed.pdf
    • https://cdn.shopify.com/s/files/1/0435/3048/5912/files/tesegosezegom.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/34130324328.pdf
    • https://cdn.shopify.com/s/files/1/0440/1024/2198/files/73541835408.pdf
    • https://cdn.shopify.com/s/files/1/0433/0805/6740/files/30986797705.pdf
    • https://cdn.shopify.com/s/files/1/0433/2643/9582/files/9106383208.pdf
    • https://cdn.shopify.com/s/files/1/0433/9525/2374/files/jogezid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tesip.pdf
    • https://cdn.shopify.com/s/files/1/0434/9621/0594/files/vofoxalagubirumukufiwop.pdf
    • https://cdn.shopify.com/s/files/1/0431/1842/8326/files/kigajed.pdf
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/83876879148.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000854b.bin
9f2c0e5bec723ee5cffbaff175f7b3cc6551a41ca95e2233f99e411712782e6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x854B 5448 bytes
font_01_sfnt_off000097dc.bin
b90cf76f31107681d06cac2d323888ffa7429c2cfc3ac39874de6ae8ea37a9b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97DC 5500 bytes
font_02_sfnt_off0000abc0.bin
4680ffa426aa2391b86429bbced19823a4e1b020cc08546f0efb80a6d97320bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABC0 13972 bytes

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