Malicious PDF — malware analysis report

Static analysis result for SHA-256 a72cf20435969c5a…

MALICIOUS

PDF

43.9 KB Created: 2020-08-27 14:10:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ee696a088f2bca7a780079c538840d5 SHA-1: 8968fd693e10559ed1f77eb47e2a1b8bb2d1e03e SHA-256: a72cf20435969c5a92f6d518212c1ad072564608d3e492c694c1b61c0262f09c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=www+rockwelltools+com+warranty+registration'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to 'www rockwelltools com warranty registration', reinforcing the lure. The primary malicious URL is the most significant IOC.

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=www+rockwelltools+com+warranty+registration
    • http://files.team-revo.com/uploads/1/3/0/7/130739415/e64a050a82e77.pdf
    • http://files.stnectariosgeorgegoc.com/uploads/1/3/1/0/131071067/7fb10cd3.pdf
    • http://biwevukal.zenpetsitting.com/uploads/1/3/0/7/130775735/fisuwafo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/woziki.pdf
    • https://cdn.shopify.com/s/files/1/0435/5470/1461/files/76957198357.pdf
    • https://cdn.shopify.com/s/files/1/0434/7238/8246/files/nawovako.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/37154023419.pdf
    • https://cdn.shopify.com/s/files/1/0431/2655/4781/files/8975988445.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/65292723855.pdf
    • https://cdn.shopify.com/s/files/1/0430/8123/6634/files/jasokur.pdf
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/11645330459.pdf
    • https://cdn.shopify.com/s/files/1/0438/7025/7320/files/50028776501.pdf
    • https://cdn.shopify.com/s/files/1/0434/4712/4130/files/35563090669.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/
    • https://cdn.shopify.com/s/file

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b15.bin
2b875568925aa1d9775287ad0dbe213a28b23fe6feda4f7aafd5a1d8d0e7b024		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B15 5392 bytes
font_01_sfnt_off00007d74.bin
250c23e85df8d3efbb1e4660a560af2ef1496b1b012a709001534d2be291d299		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D74 10740 bytes

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